nginx-site: xml/ru/docs/njs/node

annotate xml/ru/docs/njs/node_modules.xml @ 2592:fca42223b9fc

Fixed example in the "Using node modules with njs" article.

author	Vladimir Homutov <vl@nginx.com>
date	Fri, 11 Sep 2020 15:46:11 +0300
parents	67fd664e2612
children	5cd72684e5b8

rev	line source
2480 73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	1 <?xml version="1.0"?>
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	2
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	3 <!--
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	4 Copyright (C) Nginx, Inc.
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	5 -->
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	6
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	7 <!DOCTYPE article SYSTEM "../../../../dtd/article.dtd">
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	8
2577 67fd664e2612 Translated "Using node modules with njs" into Russian. Yaroslav Zhuravlev <yar@nginx.com> parents: 2576 diff changeset	9 <article name="Использование модулей Node.js в njs"
67fd664e2612 Translated "Using node modules with njs" into Russian. Yaroslav Zhuravlev <yar@nginx.com> parents: 2576 diff changeset	10 link="/ru/docs/njs/node_modules.html"
2480 73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	11 lang="en"
2592 fca42223b9fc Fixed example in the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: 2577 diff changeset	12 rev="5">
2480 73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	13
2576 4c8d0b37932d Corrected syntax and style of "Using node modules with njs". Yaroslav Zhuravlev <yar@nginx.com> parents: 2489 diff changeset	14 <section id="intro">
2480 73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	15
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	16 <para>
2577 67fd664e2612 Translated "Using node modules with njs" into Russian. Yaroslav Zhuravlev <yar@nginx.com> parents: 2576 diff changeset	17 Часто разработчику приходится использовать сторонний код и,
67fd664e2612 Translated "Using node modules with njs" into Russian. Yaroslav Zhuravlev <yar@nginx.com> parents: 2576 diff changeset	18 как правило, такой код доступен в виде библиотеки.
67fd664e2612 Translated "Using node modules with njs" into Russian. Yaroslav Zhuravlev <yar@nginx.com> parents: 2576 diff changeset	19 В JavaScript концепция модулей является новой и
67fd664e2612 Translated "Using node modules with njs" into Russian. Yaroslav Zhuravlev <yar@nginx.com> parents: 2576 diff changeset	20 до недавнего времени не была стандартизированa.
67fd664e2612 Translated "Using node modules with njs" into Russian. Yaroslav Zhuravlev <yar@nginx.com> parents: 2576 diff changeset	21 До сих пор множество платформ или браузеров не поддерживают модули,
67fd664e2612 Translated "Using node modules with njs" into Russian. Yaroslav Zhuravlev <yar@nginx.com> parents: 2576 diff changeset	22 по этой причине практически невозможно повторно использовать код.
67fd664e2612 Translated "Using node modules with njs" into Russian. Yaroslav Zhuravlev <yar@nginx.com> parents: 2576 diff changeset	23 В данной статье приводятся способы повторного использования
67fd664e2612 Translated "Using node modules with njs" into Russian. Yaroslav Zhuravlev <yar@nginx.com> parents: 2576 diff changeset	24 кода в njs при помощи <link url="https://nodejs.org/">Node.js</link>.
2480 73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	25 </para>
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	26
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	27 <note>
2577 67fd664e2612 Translated "Using node modules with njs" into Russian. Yaroslav Zhuravlev <yar@nginx.com> parents: 2576 diff changeset	28 В примерах статьи используется функциональность
2480 73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	29 <link doc="index.xml">njs</link>
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	30 <link doc="changes.xml" id="njs0.3.8">0.3.8</link>
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	31 </note>
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	32
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	33 <para>
2577 67fd664e2612 Translated "Using node modules with njs" into Russian. Yaroslav Zhuravlev <yar@nginx.com> parents: 2576 diff changeset	34 При добавлении стороннего кода в njs
67fd664e2612 Translated "Using node modules with njs" into Russian. Yaroslav Zhuravlev <yar@nginx.com> parents: 2576 diff changeset	35 может возникнуть несколько проблем:
2480 73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	36
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	37 <list type="bullet">
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	38
2576 4c8d0b37932d Corrected syntax and style of "Using node modules with njs". Yaroslav Zhuravlev <yar@nginx.com> parents: 2489 diff changeset	39 <listitem>
2577 67fd664e2612 Translated "Using node modules with njs" into Russian. Yaroslav Zhuravlev <yar@nginx.com> parents: 2576 diff changeset	40 большое количество файлов, ссылающихся друг на друга, и их зависимости
2576 4c8d0b37932d Corrected syntax and style of "Using node modules with njs". Yaroslav Zhuravlev <yar@nginx.com> parents: 2489 diff changeset	41 </listitem>
2480 73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	42
2576 4c8d0b37932d Corrected syntax and style of "Using node modules with njs". Yaroslav Zhuravlev <yar@nginx.com> parents: 2489 diff changeset	43 <listitem>
2577 67fd664e2612 Translated "Using node modules with njs" into Russian. Yaroslav Zhuravlev <yar@nginx.com> parents: 2576 diff changeset	44 платформозависимые API
2576 4c8d0b37932d Corrected syntax and style of "Using node modules with njs". Yaroslav Zhuravlev <yar@nginx.com> parents: 2489 diff changeset	45 </listitem>
2480 73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	46
2576 4c8d0b37932d Corrected syntax and style of "Using node modules with njs". Yaroslav Zhuravlev <yar@nginx.com> parents: 2489 diff changeset	47 <listitem>
2577 67fd664e2612 Translated "Using node modules with njs" into Russian. Yaroslav Zhuravlev <yar@nginx.com> parents: 2576 diff changeset	48 языковые конструкции нового стандарта
2576 4c8d0b37932d Corrected syntax and style of "Using node modules with njs". Yaroslav Zhuravlev <yar@nginx.com> parents: 2489 diff changeset	49 </listitem>
2480 73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	50
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	51 </list>
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	52 </para>
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	53
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	54 <para>
2577 67fd664e2612 Translated "Using node modules with njs" into Russian. Yaroslav Zhuravlev <yar@nginx.com> parents: 2576 diff changeset	55 Однако это не является чем-то новым или специфичным для njs.
67fd664e2612 Translated "Using node modules with njs" into Russian. Yaroslav Zhuravlev <yar@nginx.com> parents: 2576 diff changeset	56 Разработчикам JavaScript приходится часто иметь дело с подобными случаями,
67fd664e2612 Translated "Using node modules with njs" into Russian. Yaroslav Zhuravlev <yar@nginx.com> parents: 2576 diff changeset	57 например при поддержке нескольких несхожих платформ
67fd664e2612 Translated "Using node modules with njs" into Russian. Yaroslav Zhuravlev <yar@nginx.com> parents: 2576 diff changeset	58 с разными свойствами.
67fd664e2612 Translated "Using node modules with njs" into Russian. Yaroslav Zhuravlev <yar@nginx.com> parents: 2576 diff changeset	59 Данные проблемы можно разрешить при помощи следующих инструментов:
2480 73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	60
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	61 <list type="bullet">
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	62
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	63 <listitem>
2577 67fd664e2612 Translated "Using node modules with njs" into Russian. Yaroslav Zhuravlev <yar@nginx.com> parents: 2576 diff changeset	64 Большое количество файлов, ссылающихся друг на друга, и их зависимости
2480 73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	65 <para>
2577 67fd664e2612 Translated "Using node modules with njs" into Russian. Yaroslav Zhuravlev <yar@nginx.com> parents: 2576 diff changeset	66 Решение: слияние всего независимого кода в один файл.
67fd664e2612 Translated "Using node modules with njs" into Russian. Yaroslav Zhuravlev <yar@nginx.com> parents: 2576 diff changeset	67 Для этих целей могут использоваться утилиты
67fd664e2612 Translated "Using node modules with njs" into Russian. Yaroslav Zhuravlev <yar@nginx.com> parents: 2576 diff changeset	68 <link url="http://browserify.org/">browserify</link> или
67fd664e2612 Translated "Using node modules with njs" into Russian. Yaroslav Zhuravlev <yar@nginx.com> parents: 2576 diff changeset	69 <link url="https://webpack.js.org/">webpack</link>,
67fd664e2612 Translated "Using node modules with njs" into Russian. Yaroslav Zhuravlev <yar@nginx.com> parents: 2576 diff changeset	70 позволяющие преобразовать проект в один файл, содержащий
67fd664e2612 Translated "Using node modules with njs" into Russian. Yaroslav Zhuravlev <yar@nginx.com> parents: 2576 diff changeset	71 код и все зависимости.
2480 73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	72 </para>
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	73 </listitem>
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	74
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	75 <listitem>
2577 67fd664e2612 Translated "Using node modules with njs" into Russian. Yaroslav Zhuravlev <yar@nginx.com> parents: 2576 diff changeset	76 Платформозависимые API
2480 73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	77 <para>
2577 67fd664e2612 Translated "Using node modules with njs" into Russian. Yaroslav Zhuravlev <yar@nginx.com> parents: 2576 diff changeset	78 Решение: использование библиотек, реализующих подобные API
67fd664e2612 Translated "Using node modules with njs" into Russian. Yaroslav Zhuravlev <yar@nginx.com> parents: 2576 diff changeset	79 в платформонезависимом режиме, однако в ущерб производительности.
67fd664e2612 Translated "Using node modules with njs" into Russian. Yaroslav Zhuravlev <yar@nginx.com> parents: 2576 diff changeset	80 Определённая функциональность может быть также реализована при помощи
67fd664e2612 Translated "Using node modules with njs" into Russian. Yaroslav Zhuravlev <yar@nginx.com> parents: 2576 diff changeset	81 <link url="https://polyfill.io/v3/">polyfill</link>.
2480 73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	82 </para>
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	83 </listitem>
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	84
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	85 <listitem>
2577 67fd664e2612 Translated "Using node modules with njs" into Russian. Yaroslav Zhuravlev <yar@nginx.com> parents: 2576 diff changeset	86 Языковые конструкции нового стандарта
2480 73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	87 <para>
2577 67fd664e2612 Translated "Using node modules with njs" into Russian. Yaroslav Zhuravlev <yar@nginx.com> parents: 2576 diff changeset	88 Решение: трансплирование кода—
67fd664e2612 Translated "Using node modules with njs" into Russian. Yaroslav Zhuravlev <yar@nginx.com> parents: 2576 diff changeset	89 ряд преобразований,
67fd664e2612 Translated "Using node modules with njs" into Russian. Yaroslav Zhuravlev <yar@nginx.com> parents: 2576 diff changeset	90 заменяющих новые функции языка в соответствии со старым стандартом.
67fd664e2612 Translated "Using node modules with njs" into Russian. Yaroslav Zhuravlev <yar@nginx.com> parents: 2576 diff changeset	91 Для этих целей может использоваться
67fd664e2612 Translated "Using node modules with njs" into Russian. Yaroslav Zhuravlev <yar@nginx.com> parents: 2576 diff changeset	92 <link url="https://babeljs.io/"> babel</link>.
2480 73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	93 </para>
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	94 </listitem>
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	95
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	96 </list>
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	97 </para>
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	98
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	99 <para>
2577 67fd664e2612 Translated "Using node modules with njs" into Russian. Yaroslav Zhuravlev <yar@nginx.com> parents: 2576 diff changeset	100 В статье также используются две относительно большие
67fd664e2612 Translated "Using node modules with njs" into Russian. Yaroslav Zhuravlev <yar@nginx.com> parents: 2576 diff changeset	101 библиотеки на основе npm:
2480 73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	102
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	103 <list type="bullet">
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	104
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	105 <listitem>
2576 4c8d0b37932d Corrected syntax and style of "Using node modules with njs". Yaroslav Zhuravlev <yar@nginx.com> parents: 2489 diff changeset	106 <link url="https://www.npmjs.com/package/protobufjs">protobufjs</link>—
2577 67fd664e2612 Translated "Using node modules with njs" into Russian. Yaroslav Zhuravlev <yar@nginx.com> parents: 2576 diff changeset	107 библиотека для создания и парсинга protobuf-сообщений, используемая
67fd664e2612 Translated "Using node modules with njs" into Russian. Yaroslav Zhuravlev <yar@nginx.com> parents: 2576 diff changeset	108 протоколом <link url="https://grpc.io/">gRPC</link>
2480 73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	109 </listitem>
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	110
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	111 <listitem>
2576 4c8d0b37932d Corrected syntax and style of "Using node modules with njs". Yaroslav Zhuravlev <yar@nginx.com> parents: 2489 diff changeset	112 <link url="https://www.npmjs.com/package/dns-packet">dns-packet</link>—
2577 67fd664e2612 Translated "Using node modules with njs" into Russian. Yaroslav Zhuravlev <yar@nginx.com> parents: 2576 diff changeset	113 библиотека для обработки пакетов протокола DNS
2480 73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	114 </listitem>
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	115
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	116 </list>
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	117 </para>
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	118
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	119 </section>
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	120
2576 4c8d0b37932d Corrected syntax and style of "Using node modules with njs". Yaroslav Zhuravlev <yar@nginx.com> parents: 2489 diff changeset	121
2577 67fd664e2612 Translated "Using node modules with njs" into Russian. Yaroslav Zhuravlev <yar@nginx.com> parents: 2576 diff changeset	122 <section id="environment" name="Окружение">
2480 73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	123
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	124 <para>
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	125 <note>
2577 67fd664e2612 Translated "Using node modules with njs" into Russian. Yaroslav Zhuravlev <yar@nginx.com> parents: 2576 diff changeset	126 В статье описываются общие принципы работы
67fd664e2612 Translated "Using node modules with njs" into Russian. Yaroslav Zhuravlev <yar@nginx.com> parents: 2576 diff changeset	127 и не ставится цель описания подробных сценариев работы с Node.js
67fd664e2612 Translated "Using node modules with njs" into Russian. Yaroslav Zhuravlev <yar@nginx.com> parents: 2576 diff changeset	128 и JavaScript.
67fd664e2612 Translated "Using node modules with njs" into Russian. Yaroslav Zhuravlev <yar@nginx.com> parents: 2576 diff changeset	129 Перед выполнением команд
67fd664e2612 Translated "Using node modules with njs" into Russian. Yaroslav Zhuravlev <yar@nginx.com> parents: 2576 diff changeset	130 необходимо ознакомиться с документацией соответствующих пакетов.
2480 73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	131 </note>
2577 67fd664e2612 Translated "Using node modules with njs" into Russian. Yaroslav Zhuravlev <yar@nginx.com> parents: 2576 diff changeset	132 Сначала, предварительно установив и запустив Node.js, необходимо создать
67fd664e2612 Translated "Using node modules with njs" into Russian. Yaroslav Zhuravlev <yar@nginx.com> parents: 2576 diff changeset	133 пустой проект и установить зависимости;
67fd664e2612 Translated "Using node modules with njs" into Russian. Yaroslav Zhuravlev <yar@nginx.com> parents: 2576 diff changeset	134 для выполнения нижеперечисленных команд необходимо
67fd664e2612 Translated "Using node modules with njs" into Russian. Yaroslav Zhuravlev <yar@nginx.com> parents: 2576 diff changeset	135 находиться в рабочем каталоге:
2480 73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	136 <example>
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	137 $ mkdir my_project && cd my_project
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	138 $ npx license choose_your_license_here > LICENSE
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	139 $ npx gitignore node
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	140
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	141 $ cat > package.json <<EOF
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	142 {
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	143 "name": "foobar",
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	144 "version": "0.0.1",
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	145 "description": "",
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	146 "main": "index.js",
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	147 "keywords": [],
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	148 "author": "somename <some.email@example.com> (https://example.com)",
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	149 "license": "some_license_here",
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	150 "private": true,
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	151 "scripts": {
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	152 "test": "echo \"Error: no test specified\" && exit 1"
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	153 }
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	154 }
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	155 EOF
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	156 $ npm init -y
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	157 $ npm install browserify
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	158 </example>
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	159 </para>
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	160
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	161 </section>
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	162
2576 4c8d0b37932d Corrected syntax and style of "Using node modules with njs". Yaroslav Zhuravlev <yar@nginx.com> parents: 2489 diff changeset	163
2481 8ed243471444 Typos fixed. Vladimir Homutov <vl@nginx.com> parents: 2480 diff changeset	164 <section id="protobuf" name="Protobufjs">
2480 73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	165
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	166 <para>
2577 67fd664e2612 Translated "Using node modules with njs" into Russian. Yaroslav Zhuravlev <yar@nginx.com> parents: 2576 diff changeset	167 Библиотека предоставляет парсер
67fd664e2612 Translated "Using node modules with njs" into Russian. Yaroslav Zhuravlev <yar@nginx.com> parents: 2576 diff changeset	168 для определения интерфейса <literal>.proto</literal>,
67fd664e2612 Translated "Using node modules with njs" into Russian. Yaroslav Zhuravlev <yar@nginx.com> parents: 2576 diff changeset	169 а также генератор кода для парсинга и генерации сообщений.
2480 73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	170 </para>
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	171
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	172 <para>
2577 67fd664e2612 Translated "Using node modules with njs" into Russian. Yaroslav Zhuravlev <yar@nginx.com> parents: 2576 diff changeset	173 В данном примере используется
67fd664e2612 Translated "Using node modules with njs" into Russian. Yaroslav Zhuravlev <yar@nginx.com> parents: 2576 diff changeset	174 файл
2480 73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	175 <link url="https://github.com/grpc/grpc/blob/master/examples/protos/helloworld.proto">helloworld.proto</link>
2577 67fd664e2612 Translated "Using node modules with njs" into Russian. Yaroslav Zhuravlev <yar@nginx.com> parents: 2576 diff changeset	176 из примеров gRPC.
67fd664e2612 Translated "Using node modules with njs" into Russian. Yaroslav Zhuravlev <yar@nginx.com> parents: 2576 diff changeset	177 Целью является создание двух сообщений:
67fd664e2612 Translated "Using node modules with njs" into Russian. Yaroslav Zhuravlev <yar@nginx.com> parents: 2576 diff changeset	178 <literal>HelloRequest</literal> и
2480 73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	179 <literal>HelloResponse</literal>.
2577 67fd664e2612 Translated "Using node modules with njs" into Russian. Yaroslav Zhuravlev <yar@nginx.com> parents: 2576 diff changeset	180 Также используется
67fd664e2612 Translated "Using node modules with njs" into Russian. Yaroslav Zhuravlev <yar@nginx.com> parents: 2576 diff changeset	181 <link url="https://github.com/protobufjs/protobuf.js/blob/master/README.md#reflection-vs-static-code">статический</link>
67fd664e2612 Translated "Using node modules with njs" into Russian. Yaroslav Zhuravlev <yar@nginx.com> parents: 2576 diff changeset	182 режим protobufjs вместо динамически генерируемых классов, так как
67fd664e2612 Translated "Using node modules with njs" into Russian. Yaroslav Zhuravlev <yar@nginx.com> parents: 2576 diff changeset	183 njs не поддерживает динамическое добавление новых функций
67fd664e2612 Translated "Using node modules with njs" into Russian. Yaroslav Zhuravlev <yar@nginx.com> parents: 2576 diff changeset	184 из соображений безопасности.
2480 73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	185 </para>
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	186
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	187 <para>
2577 67fd664e2612 Translated "Using node modules with njs" into Russian. Yaroslav Zhuravlev <yar@nginx.com> parents: 2576 diff changeset	188 Затем устанавливается библиотека,
67fd664e2612 Translated "Using node modules with njs" into Russian. Yaroslav Zhuravlev <yar@nginx.com> parents: 2576 diff changeset	189 из определения протокола генерируется код JavaScript,
67fd664e2612 Translated "Using node modules with njs" into Russian. Yaroslav Zhuravlev <yar@nginx.com> parents: 2576 diff changeset	190 реализующий маршалинг сообщений:
2480 73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	191 <example>
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	192 $ npm install protobufjs
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	193 $ npx pbjs -t static-module helloworld.proto > static.js
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	194 </example>
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	195 </para>
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	196
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	197 <para>
2577 67fd664e2612 Translated "Using node modules with njs" into Russian. Yaroslav Zhuravlev <yar@nginx.com> parents: 2576 diff changeset	198 Таким образом файл <literal>static.js</literal> становится новой зависимостью,
67fd664e2612 Translated "Using node modules with njs" into Russian. Yaroslav Zhuravlev <yar@nginx.com> parents: 2576 diff changeset	199 хранящей необходимый код для реализации обработки сообщений.
67fd664e2612 Translated "Using node modules with njs" into Russian. Yaroslav Zhuravlev <yar@nginx.com> parents: 2576 diff changeset	200 Функция <literal>set_buffer()</literal> содержит код, использующий
67fd664e2612 Translated "Using node modules with njs" into Russian. Yaroslav Zhuravlev <yar@nginx.com> parents: 2576 diff changeset	201 библиотеку для создания буфера с сериализованным
67fd664e2612 Translated "Using node modules with njs" into Russian. Yaroslav Zhuravlev <yar@nginx.com> parents: 2576 diff changeset	202 сообщением <literal>HelloRequest</literal>.
67fd664e2612 Translated "Using node modules with njs" into Russian. Yaroslav Zhuravlev <yar@nginx.com> parents: 2576 diff changeset	203 Код находится в файле <literal>code.js</literal>:
2480 73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	204 <example>
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	205 var pb = require('./static.js');
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	206
2577 67fd664e2612 Translated "Using node modules with njs" into Russian. Yaroslav Zhuravlev <yar@nginx.com> parents: 2576 diff changeset	207 // Пример использования библиотеки protobuf: подготовка буфера к отправке
2480 73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	208 function set_buffer(pb)
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	209 {
2577 67fd664e2612 Translated "Using node modules with njs" into Russian. Yaroslav Zhuravlev <yar@nginx.com> parents: 2576 diff changeset	210 // назначение полей gRPC payload
2480 73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	211 var payload = { name: "TestString" };
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	212
2577 67fd664e2612 Translated "Using node modules with njs" into Russian. Yaroslav Zhuravlev <yar@nginx.com> parents: 2576 diff changeset	213 // создание объекта
2480 73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	214 var message = pb.helloworld.HelloRequest.create(payload);
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	215
2577 67fd664e2612 Translated "Using node modules with njs" into Russian. Yaroslav Zhuravlev <yar@nginx.com> parents: 2576 diff changeset	216 // сериализация объекта в буфер
2480 73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	217 var buffer = pb.helloworld.HelloRequest.encode(message).finish();
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	218
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	219 var n = buffer.length;
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	220
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	221 var frame = new Uint8Array(5 + buffer.length);
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	222
2577 67fd664e2612 Translated "Using node modules with njs" into Russian. Yaroslav Zhuravlev <yar@nginx.com> parents: 2576 diff changeset	223 frame[0] = 0; // флаг 'compressed'
67fd664e2612 Translated "Using node modules with njs" into Russian. Yaroslav Zhuravlev <yar@nginx.com> parents: 2576 diff changeset	224 frame[1] = (n & 0xFF000000) >>> 24; // длина: uint32 в сетевом порядке байт
2480 73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	225 frame[2] = (n & 0x00FF0000) >>> 16;
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	226 frame[3] = (n & 0x0000FF00) >>> 8;
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	227 frame[4] = (n & 0x000000FF) >>> 0;
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	228
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	229 frame.set(buffer, 5);
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	230
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	231 return frame;
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	232 }
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	233
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	234 var frame = set_buffer(pb);
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	235 </example>
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	236 </para>
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	237
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	238 <para>
2577 67fd664e2612 Translated "Using node modules with njs" into Russian. Yaroslav Zhuravlev <yar@nginx.com> parents: 2576 diff changeset	239 Для проверки работоспособности необходимо выполнить код при помощи node:
2480 73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	240 <example>
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	241 $ node ./code.js
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	242 Uint8Array [
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	243 0, 0, 0, 0, 12, 10,
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	244 10, 84, 101, 115, 116, 83,
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	245 116, 114, 105, 110, 103
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	246 ]
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	247 </example>
2577 67fd664e2612 Translated "Using node modules with njs" into Russian. Yaroslav Zhuravlev <yar@nginx.com> parents: 2576 diff changeset	248 Результатом является закодированный фрейм <literal>gRPC</literal>.
67fd664e2612 Translated "Using node modules with njs" into Russian. Yaroslav Zhuravlev <yar@nginx.com> parents: 2576 diff changeset	249 Теперь фрейм можно запустить с njs:
2480 73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	250 <example>
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	251 $ njs ./code.js
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	252 Thrown:
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	253 Error: Cannot find module "./static.js"
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	254 at require (native)
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	255 at main (native)
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	256 </example>
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	257 </para>
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	258
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	259 <para>
2577 67fd664e2612 Translated "Using node modules with njs" into Russian. Yaroslav Zhuravlev <yar@nginx.com> parents: 2576 diff changeset	260 Так как модули не поддерживаются, то операция завершается получением исключения.
67fd664e2612 Translated "Using node modules with njs" into Russian. Yaroslav Zhuravlev <yar@nginx.com> parents: 2576 diff changeset	261 В этом случае можно использовать утилиту <literal>browserify</literal>
67fd664e2612 Translated "Using node modules with njs" into Russian. Yaroslav Zhuravlev <yar@nginx.com> parents: 2576 diff changeset	262 или другую подобную утилиту.
2480 73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	263 </para>
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	264
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	265 <para>
2577 67fd664e2612 Translated "Using node modules with njs" into Russian. Yaroslav Zhuravlev <yar@nginx.com> parents: 2576 diff changeset	266 Попытка обработки файла <literal>code.js</literal> завершится
67fd664e2612 Translated "Using node modules with njs" into Russian. Yaroslav Zhuravlev <yar@nginx.com> parents: 2576 diff changeset	267 большим количеством JS-кода, который предполагается запускать в браузере,
67fd664e2612 Translated "Using node modules with njs" into Russian. Yaroslav Zhuravlev <yar@nginx.com> parents: 2576 diff changeset	268 то есть сразу после загрузки.
67fd664e2612 Translated "Using node modules with njs" into Russian. Yaroslav Zhuravlev <yar@nginx.com> parents: 2576 diff changeset	269 Однако необходимо получить другой результат—
67fd664e2612 Translated "Using node modules with njs" into Russian. Yaroslav Zhuravlev <yar@nginx.com> parents: 2576 diff changeset	270 экспортируемую функцию, на которую
67fd664e2612 Translated "Using node modules with njs" into Russian. Yaroslav Zhuravlev <yar@nginx.com> parents: 2576 diff changeset	271 можно сослаться из конфигурации nginx.
67fd664e2612 Translated "Using node modules with njs" into Russian. Yaroslav Zhuravlev <yar@nginx.com> parents: 2576 diff changeset	272 Для этого потребуется создание кода-обёртки.
2480 73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	273 <note>
2577 67fd664e2612 Translated "Using node modules with njs" into Russian. Yaroslav Zhuravlev <yar@nginx.com> parents: 2576 diff changeset	274 В целях упрощения в примерах данной статьи
67fd664e2612 Translated "Using node modules with njs" into Russian. Yaroslav Zhuravlev <yar@nginx.com> parents: 2576 diff changeset	275 используется <link doc="cli.xml">интерфейс комадной строки</link> njs.
67fd664e2612 Translated "Using node modules with njs" into Russian. Yaroslav Zhuravlev <yar@nginx.com> parents: 2576 diff changeset	276 На практике для запуска кода обычно используется njs-модуль для nginx.
2480 73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	277 </note>
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	278 </para>
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	279
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	280 <para>
2577 67fd664e2612 Translated "Using node modules with njs" into Russian. Yaroslav Zhuravlev <yar@nginx.com> parents: 2576 diff changeset	281 Файл <literal>load.js</literal> содержит код, загружающий библиотеку,
67fd664e2612 Translated "Using node modules with njs" into Russian. Yaroslav Zhuravlev <yar@nginx.com> parents: 2576 diff changeset	282 храняющую дескриптор в глобальном пространстве имён:
2480 73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	283 <example>
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	284 global.hello = require('./static.js');
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	285 </example>
2577 67fd664e2612 Translated "Using node modules with njs" into Russian. Yaroslav Zhuravlev <yar@nginx.com> parents: 2576 diff changeset	286 Данный код будет заменён объединённым содержимым.
67fd664e2612 Translated "Using node modules with njs" into Russian. Yaroslav Zhuravlev <yar@nginx.com> parents: 2576 diff changeset	287 Код будет использовать дескриптор "<literal>global.hello</literal>" для доступа
67fd664e2612 Translated "Using node modules with njs" into Russian. Yaroslav Zhuravlev <yar@nginx.com> parents: 2576 diff changeset	288 к библиотеке.
2480 73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	289 </para>
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	290
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	291 <para>
2577 67fd664e2612 Translated "Using node modules with njs" into Russian. Yaroslav Zhuravlev <yar@nginx.com> parents: 2576 diff changeset	292 Затем для получения всех зависимостей в один файл
67fd664e2612 Translated "Using node modules with njs" into Russian. Yaroslav Zhuravlev <yar@nginx.com> parents: 2576 diff changeset	293 код обрабатыается утилитой <literal>browserify</literal>:
2480 73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	294 <example>
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	295 $ npx browserify load.js -o bundle.js -d
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	296 </example>
2577 67fd664e2612 Translated "Using node modules with njs" into Russian. Yaroslav Zhuravlev <yar@nginx.com> parents: 2576 diff changeset	297 В результате генерируется объёмный файл, содержащий все зависимости:
2480 73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	298 <example>
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	299 (function(){function......
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	300 ...
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	301 ...
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	302 },{"protobufjs/minimal":9}]},{},[1])
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	303 //# sourceMappingURL..............
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	304 </example>
2577 67fd664e2612 Translated "Using node modules with njs" into Russian. Yaroslav Zhuravlev <yar@nginx.com> parents: 2576 diff changeset	305 Для получения результирующего файла "<literal>njs_bundle.js</literal>"
67fd664e2612 Translated "Using node modules with njs" into Russian. Yaroslav Zhuravlev <yar@nginx.com> parents: 2576 diff changeset	306 необходимо объединить "<literal>bundle.js</literal>" и следующий код:
2480 73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	307 <example>
2577 67fd664e2612 Translated "Using node modules with njs" into Russian. Yaroslav Zhuravlev <yar@nginx.com> parents: 2576 diff changeset	308 // Пример использования библиотеки protobuf: подготовка буфера к отправке
2480 73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	309 function set_buffer(pb)
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	310 {
2577 67fd664e2612 Translated "Using node modules with njs" into Russian. Yaroslav Zhuravlev <yar@nginx.com> parents: 2576 diff changeset	311 // назначение полей gRPC payload
2480 73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	312 var payload = { name: "TestString" };
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	313
2577 67fd664e2612 Translated "Using node modules with njs" into Russian. Yaroslav Zhuravlev <yar@nginx.com> parents: 2576 diff changeset	314 // создание объекта
2480 73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	315 var message = pb.helloworld.HelloRequest.create(payload);
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	316
2577 67fd664e2612 Translated "Using node modules with njs" into Russian. Yaroslav Zhuravlev <yar@nginx.com> parents: 2576 diff changeset	317 // сериализация объекта в буфер
2480 73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	318 var buffer = pb.helloworld.HelloRequest.encode(message).finish();
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	319
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	320 var n = buffer.length;
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	321
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	322 var frame = new Uint8Array(5 + buffer.length);
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	323
2577 67fd664e2612 Translated "Using node modules with njs" into Russian. Yaroslav Zhuravlev <yar@nginx.com> parents: 2576 diff changeset	324 frame[0] = 0; // флаг 'compressed'
67fd664e2612 Translated "Using node modules with njs" into Russian. Yaroslav Zhuravlev <yar@nginx.com> parents: 2576 diff changeset	325 frame[1] = (n & 0xFF000000) >>> 24; // длина: uint32 в сетевом порядке байт
2480 73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	326 frame[2] = (n & 0x00FF0000) >>> 16;
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	327 frame[3] = (n & 0x0000FF00) >>> 8;
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	328 frame[4] = (n & 0x000000FF) >>> 0;
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	329
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	330 frame.set(buffer, 5);
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	331
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	332 return frame;
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	333 }
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	334
2577 67fd664e2612 Translated "Using node modules with njs" into Russian. Yaroslav Zhuravlev <yar@nginx.com> parents: 2576 diff changeset	335 // функции, вызываемые снаружи
2480 73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	336 function setbuf()
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	337 {
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	338 return set_buffer(global.hello);
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	339 }
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	340
2577 67fd664e2612 Translated "Using node modules with njs" into Russian. Yaroslav Zhuravlev <yar@nginx.com> parents: 2576 diff changeset	341 // вызов кода
2480 73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	342 var frame = setbuf();
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	343 console.log(frame);
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	344 </example>
2577 67fd664e2612 Translated "Using node modules with njs" into Russian. Yaroslav Zhuravlev <yar@nginx.com> parents: 2576 diff changeset	345 Для проверки работоспособности необходимо запустить файл при помощи node:
2480 73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	346 <example>
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	347 $ node ./njs_bundle.js
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	348 Uint8Array [
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	349 0, 0, 0, 0, 12, 10,
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	350 10, 84, 101, 115, 116, 83,
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	351 116, 114, 105, 110, 103
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	352 ]
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	353 </example>
2577 67fd664e2612 Translated "Using node modules with njs" into Russian. Yaroslav Zhuravlev <yar@nginx.com> parents: 2576 diff changeset	354 Дальнейшие шаги выполняются при помощи njs:
2480 73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	355 <example>
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	356 $ /njs ./njs_bundle.js
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	357 Uint8Array [0,0,0,0,12,10,10,84,101,115,116,83,116,114,105,110,103]
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	358 </example>
2577 67fd664e2612 Translated "Using node modules with njs" into Russian. Yaroslav Zhuravlev <yar@nginx.com> parents: 2576 diff changeset	359 Теперь необходимо задействовать njs API для преобразования
67fd664e2612 Translated "Using node modules with njs" into Russian. Yaroslav Zhuravlev <yar@nginx.com> parents: 2576 diff changeset	360 массива в байтовую строку для дальнейшего использования модулем nginx.
67fd664e2612 Translated "Using node modules with njs" into Russian. Yaroslav Zhuravlev <yar@nginx.com> parents: 2576 diff changeset	361 Данный код необходимо добавить перед последней строкой:
2480 73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	362 <example>
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	363 if (global.njs) {
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	364 return String.bytesFrom(frame)
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	365 }
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	366 </example>
2577 67fd664e2612 Translated "Using node modules with njs" into Russian. Yaroslav Zhuravlev <yar@nginx.com> parents: 2576 diff changeset	367 Проверка работоспособности:
2480 73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	368 <example>
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	369 $ njs ./njs_bundle.js \|hexdump -C
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	370 00000000 00 00 00 00 0c 0a 0a 54 65 73 74 53 74 72 69 6e \|.......TestStrin\|
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	371 00000010 67 0a \|g.\|
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	372 00000012
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	373 </example>
2577 67fd664e2612 Translated "Using node modules with njs" into Russian. Yaroslav Zhuravlev <yar@nginx.com> parents: 2576 diff changeset	374 Экспортируемая функция получена.
67fd664e2612 Translated "Using node modules with njs" into Russian. Yaroslav Zhuravlev <yar@nginx.com> parents: 2576 diff changeset	375 Парсинг ответа может быть сделан аналогичным способом:
2480 73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	376 <example>
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	377 function parse_msg(pb, msg)
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	378 {
2577 67fd664e2612 Translated "Using node modules with njs" into Russian. Yaroslav Zhuravlev <yar@nginx.com> parents: 2576 diff changeset	379 // преобразование байтовой строки в массив целых чисел
2480 73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	380 var bytes = msg.split('').map(v=>v.charCodeAt(0));
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	381
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	382 if (bytes.length < 5) {
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	383 throw 'message too short';
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	384 }
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	385
2577 67fd664e2612 Translated "Using node modules with njs" into Russian. Yaroslav Zhuravlev <yar@nginx.com> parents: 2576 diff changeset	386 // первые 5 байт являются фреймом gRPC (сжатие + длина)
2480 73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	387 var head = bytes.splice(0, 5);
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	388
2577 67fd664e2612 Translated "Using node modules with njs" into Russian. Yaroslav Zhuravlev <yar@nginx.com> parents: 2576 diff changeset	389 // проверка правильной длины сообщения
2480 73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	390 var len = (head[1] << 24)
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	391 + (head[2] << 16)
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	392 + (head[3] << 8)
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	393 + head[4];
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	394
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	395 if (len != bytes.length) {
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	396 throw 'header length mismatch';
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	397 }
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	398
2577 67fd664e2612 Translated "Using node modules with njs" into Russian. Yaroslav Zhuravlev <yar@nginx.com> parents: 2576 diff changeset	399 // вызов protobufjs для декодирования сообщения
2480 73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	400 var response = pb.helloworld.HelloReply.decode(bytes);
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	401
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	402 console.log('Reply is:' + response.message);
2489 bda080989b6c Fixed indentation and braces in njs example. Vladimir Homutov <vl@nginx.com> parents: 2481 diff changeset	403 }
2480 73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	404 </example>
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	405 </para>
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	406
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	407 </section>
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	408
2576 4c8d0b37932d Corrected syntax and style of "Using node modules with njs". Yaroslav Zhuravlev <yar@nginx.com> parents: 2489 diff changeset	409
2577 67fd664e2612 Translated "Using node modules with njs" into Russian. Yaroslav Zhuravlev <yar@nginx.com> parents: 2576 diff changeset	410 <section id="dnspacket" name="Пакет DNS">
2480 73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	411
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	412 <para>
2577 67fd664e2612 Translated "Using node modules with njs" into Russian. Yaroslav Zhuravlev <yar@nginx.com> parents: 2576 diff changeset	413 В примере используется библиотека для создания и парсинга пакетов DNS.
67fd664e2612 Translated "Using node modules with njs" into Russian. Yaroslav Zhuravlev <yar@nginx.com> parents: 2576 diff changeset	414 Эта библиотека, а также её зависимости,
67fd664e2612 Translated "Using node modules with njs" into Russian. Yaroslav Zhuravlev <yar@nginx.com> parents: 2576 diff changeset	415 использует современные языковые конструкции, не поддерживаемые в njs.
67fd664e2612 Translated "Using node modules with njs" into Russian. Yaroslav Zhuravlev <yar@nginx.com> parents: 2576 diff changeset	416 Для поддержки таких конструкций
67fd664e2612 Translated "Using node modules with njs" into Russian. Yaroslav Zhuravlev <yar@nginx.com> parents: 2576 diff changeset	417 потребуется дополнительный шаг: транспилирование исходного кода.
2480 73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	418 </para>
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	419
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	420 <para>
2577 67fd664e2612 Translated "Using node modules with njs" into Russian. Yaroslav Zhuravlev <yar@nginx.com> parents: 2576 diff changeset	421 Необходимо установить дополнительные пакеты node:
2480 73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	422 <example>
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	423 $ npm install @babel/core @babel/cli @babel/preset-env babel-loader
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	424 $ npm install webpack webpack-cli
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	425 $ npm install buffer
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	426 $ npm install dns-packet
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	427 </example>
2577 67fd664e2612 Translated "Using node modules with njs" into Russian. Yaroslav Zhuravlev <yar@nginx.com> parents: 2576 diff changeset	428 Файл конфигурации webpack.config.js:
2480 73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	429 <example>
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	430 const path = require('path');
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	431
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	432 module.exports = {
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	433 entry: './load.js',
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	434 mode: 'production',
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	435 output: {
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	436 filename: 'wp_out.js',
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	437 path: path.resolve(__dirname, 'dist'),
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	438 },
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	439 optimization: {
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	440 minimize: false
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	441 },
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	442 node: {
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	443 global: true,
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	444 },
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	445 module : {
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	446 rules: [{
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	447 test: /\.m?js$$/,
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	448 exclude: /(bower_components)/,
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	449 use: {
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	450 loader: 'babel-loader',
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	451 options: {
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	452 presets: ['@babel/preset-env']
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	453 }
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	454 }
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	455 }]
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	456 }
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	457 };
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	458 </example>
2577 67fd664e2612 Translated "Using node modules with njs" into Russian. Yaroslav Zhuravlev <yar@nginx.com> parents: 2576 diff changeset	459 В данном случае используется режим "<literal>production</literal>".
67fd664e2612 Translated "Using node modules with njs" into Russian. Yaroslav Zhuravlev <yar@nginx.com> parents: 2576 diff changeset	460 Конструкция "<literal>eval</literal>" не используется, так как
67fd664e2612 Translated "Using node modules with njs" into Russian. Yaroslav Zhuravlev <yar@nginx.com> parents: 2576 diff changeset	461 не поддерживается njs.
67fd664e2612 Translated "Using node modules with njs" into Russian. Yaroslav Zhuravlev <yar@nginx.com> parents: 2576 diff changeset	462 Точкой входа является файл <literal>load.js</literal>:
2480 73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	463 <example>
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	464 global.dns = require('dns-packet')
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	465 global.Buffer = require('buffer/').Buffer
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	466 </example>
2577 67fd664e2612 Translated "Using node modules with njs" into Russian. Yaroslav Zhuravlev <yar@nginx.com> parents: 2576 diff changeset	467 Сначала необходимо создать единый файл для библиотек, как в предыдущих примерах:
2480 73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	468 <example>
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	469 $ npx browserify load.js -o bundle.js -d
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	470 </example>
2577 67fd664e2612 Translated "Using node modules with njs" into Russian. Yaroslav Zhuravlev <yar@nginx.com> parents: 2576 diff changeset	471 Затем необходимо обработать утилитой webpack, что также запускает babel:
2480 73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	472 <example>
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	473 $ npx webpack --config webpack.config.js
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	474 </example>
2577 67fd664e2612 Translated "Using node modules with njs" into Russian. Yaroslav Zhuravlev <yar@nginx.com> parents: 2576 diff changeset	475 Команда создаёт файл <literal>dist/wp_out.js</literal>, являющийся
67fd664e2612 Translated "Using node modules with njs" into Russian. Yaroslav Zhuravlev <yar@nginx.com> parents: 2576 diff changeset	476 трансплицированной версией <literal>bundle.js</literal>.
67fd664e2612 Translated "Using node modules with njs" into Russian. Yaroslav Zhuravlev <yar@nginx.com> parents: 2576 diff changeset	477 Далее необходимо объединить этот файл с <literal>code.js</literal>,
67fd664e2612 Translated "Using node modules with njs" into Russian. Yaroslav Zhuravlev <yar@nginx.com> parents: 2576 diff changeset	478 хранящим код:
2480 73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	479 <example>
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	480 function set_buffer(dnsPacket)
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	481 {
2489 bda080989b6c Fixed indentation and braces in njs example. Vladimir Homutov <vl@nginx.com> parents: 2481 diff changeset	482 // create DNS packet bytes
bda080989b6c Fixed indentation and braces in njs example. Vladimir Homutov <vl@nginx.com> parents: 2481 diff changeset	483 var buf = dnsPacket.encode({
bda080989b6c Fixed indentation and braces in njs example. Vladimir Homutov <vl@nginx.com> parents: 2481 diff changeset	484 type: 'query',
bda080989b6c Fixed indentation and braces in njs example. Vladimir Homutov <vl@nginx.com> parents: 2481 diff changeset	485 id: 1,
bda080989b6c Fixed indentation and braces in njs example. Vladimir Homutov <vl@nginx.com> parents: 2481 diff changeset	486 flags: dnsPacket.RECURSION_DESIRED,
bda080989b6c Fixed indentation and braces in njs example. Vladimir Homutov <vl@nginx.com> parents: 2481 diff changeset	487 questions: [{
bda080989b6c Fixed indentation and braces in njs example. Vladimir Homutov <vl@nginx.com> parents: 2481 diff changeset	488 type: 'A',
bda080989b6c Fixed indentation and braces in njs example. Vladimir Homutov <vl@nginx.com> parents: 2481 diff changeset	489 name: 'google.com'
bda080989b6c Fixed indentation and braces in njs example. Vladimir Homutov <vl@nginx.com> parents: 2481 diff changeset	490 }]
bda080989b6c Fixed indentation and braces in njs example. Vladimir Homutov <vl@nginx.com> parents: 2481 diff changeset	491 })
2480 73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	492
2489 bda080989b6c Fixed indentation and braces in njs example. Vladimir Homutov <vl@nginx.com> parents: 2481 diff changeset	493 return buf;
2480 73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	494 }
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	495 </example>
2577 67fd664e2612 Translated "Using node modules with njs" into Russian. Yaroslav Zhuravlev <yar@nginx.com> parents: 2576 diff changeset	496 В данном примере генерируемый код не обёрнут в функцию,
67fd664e2612 Translated "Using node modules with njs" into Russian. Yaroslav Zhuravlev <yar@nginx.com> parents: 2576 diff changeset	497 явного вызова не требуется.
67fd664e2612 Translated "Using node modules with njs" into Russian. Yaroslav Zhuravlev <yar@nginx.com> parents: 2576 diff changeset	498 Результат доступен в каталоге "<literal>dist</literal>":
2480 73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	499 <example>
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	500 $ cat dist/wp_out.js code.js > njs_dns_bundle.js
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	501 </example>
2577 67fd664e2612 Translated "Using node modules with njs" into Russian. Yaroslav Zhuravlev <yar@nginx.com> parents: 2576 diff changeset	502 Далее осуществляется вызов кода в конце файла:
2480 73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	503 <example>
2592 fca42223b9fc Fixed example in the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: 2577 diff changeset	504 var b = set_buffer(global.dns);
2480 73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	505 console.log(b);
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	506 </example>
2577 67fd664e2612 Translated "Using node modules with njs" into Russian. Yaroslav Zhuravlev <yar@nginx.com> parents: 2576 diff changeset	507 И затем выполнение кода при помощи node:
2480 73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	508 <example>
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	509 $ node ./njs_dns_bundle_final.js
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	510 Buffer [Uint8Array] [
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	511 0, 1, 1, 0, 0, 1, 0, 0,
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	512 0, 0, 0, 0, 6, 103, 111, 111,
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	513 103, 108, 101, 3, 99, 111, 109, 0,
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	514 0, 1, 0, 1
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	515 ]
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	516 </example>
2577 67fd664e2612 Translated "Using node modules with njs" into Russian. Yaroslav Zhuravlev <yar@nginx.com> parents: 2576 diff changeset	517 Тестирование и запуск кода вместе с njs:
2480 73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	518 <example>
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	519 $ njs ./njs_dns_bundle_final.js
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	520 Uint8Array [0,1,1,0,0,1,0,0,0,0,0,0,6,103,111,111,103,108,101,3,99,111,109,0,0,1,0,1]
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	521 </example>
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	522 </para>
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	523
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	524 <para>
2577 67fd664e2612 Translated "Using node modules with njs" into Russian. Yaroslav Zhuravlev <yar@nginx.com> parents: 2576 diff changeset	525 Ответ можно распарсить следующим способом:
2480 73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	526 <example>
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	527 function parse_response(buf)
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	528 {
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	529 var bytes = buf.split('').map(v=>v.charCodeAt(0));
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	530
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	531 var b = global.Buffer.from(bytes);
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	532
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	533 var packet = dnsPacket.decode(b);
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	534
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	535 var resolved_name = packet.answers[0].name;
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	536
2577 67fd664e2612 Translated "Using node modules with njs" into Russian. Yaroslav Zhuravlev <yar@nginx.com> parents: 2576 diff changeset	537 // ожидаемое имя 'google.com', согласно запросу выше
2480 73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	538 }
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	539 </example>
2577 67fd664e2612 Translated "Using node modules with njs" into Russian. Yaroslav Zhuravlev <yar@nginx.com> parents: 2576 diff changeset	540
2480 73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	541 </para>
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	542
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	543 </section>
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	544
73d254c3376d Added the "Using node modules with njs" article. Vladimir Homutov <vl@nginx.com> parents: diff changeset	545 </article>

Mercurial > hg > nginx-site

annotate xml/ru/docs/njs/node_modules.xml @ 2592:fca42223b9fc