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Commit bfe6dd0

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Hello World for nodejs stream client (#403)
* add: simple publish/receive examples for the nodejs stream client
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‎javascript-nodejs-stream/.gitignore‎

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/node_modules

‎javascript-nodejs-stream/README.md‎

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# Node.js code for RabbitMQ stream tutorials
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Here you can find JavaScript (Node) code examples from [RabbitMQ tutorials](https://www.rabbitmq.com/getstarted.html) related to the [Stream plugin](https://www.rabbitmq.com/docs/stream).
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To successfully use the examples you will need a running RabbitMQ server.
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## Requirements
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Apart from [Node.js](https://nodejs.org/en/download/), these examples use the [`rabbitmq-stream-js-client`](https://github.com/coders51/rabbitmq-stream-js-client) client library.
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## Code
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Code examples are executed via `npm`:
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npm run publish
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npm run receive
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To learn more, see [`coders51/rabbitmq-stream-js-client`](https://github.com/coders51/rabbitmq-stream-js-client).

‎javascript-nodejs-stream/package-lock.json‎

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{
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"name": "rabbitmq-stream-node-tutorial",
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"version": "1.0.0",
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"description": "Tutorial for the nodejs RabbitMQ stream client",
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"scripts": {
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"send": "node send.js",
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"receive": "node receive.js"
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},
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"dependencies": {
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"rabbitmq-stream-js-client": "^0.3.1"
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}
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}

‎javascript-nodejs-stream/receive.js‎

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const rabbit = require("rabbitmq-stream-js-client")
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async function main() {
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const streamName = "hello-nodejs-stream"
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console.log("Connecting...");
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const client = await rabbit.connect({
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hostname: "localhost",
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port: 5552,
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username: "guest",
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password: "guest",
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vhost: "/",
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})
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console.log("Making sure the stream exists...");
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const streamSizeRetention = 5 * 1e9
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await client.createStream({ stream: streamName, arguments: { "max-length-bytes": streamSizeRetention } });
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console.log("Declaring the consumer with offset...");
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await client.declareConsumer({ stream: streamName, offset: rabbit.Offset.first() }, (message) => {
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console.log(`Received message ${message.content.toString()}`)
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})
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}
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main()
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.then(async () => {
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await new Promise(function () { })
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})
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.catch((res) => {
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console.log("Error while receiving message!", res)
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process.exit(-1)
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})

‎javascript-nodejs-stream/send.js‎

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const rabbit = require("rabbitmq-stream-js-client");
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async function main() {
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const streamName = "hello-nodejs-stream";
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console.log("Connecting...");
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const client = await rabbit.connect({
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vhost: "/",
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port: 5552,
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hostname: "localhost",
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username: "guest",
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password: "guest",
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});
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console.log("Making sure the stream exists...");
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const streamSizeRetention = 5 * 1e9
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await client.createStream({ stream: streamName, arguments: { "max-length-bytes": streamSizeRetention } });
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console.log("Creating the publisher...");
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const publisher = await client.declarePublisher({ stream: streamName });
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console.log("Sending a message...");
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await publisher.send(Buffer.from("Test message"));
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console.log("Closing the connection...");
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await client.close();
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}
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main()
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.then(() => console.log("done!"))
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.catch((res) => {
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console.log("Error in publishing message!", res);
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process.exit(-1);
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});

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