Example of using Yandex Message Queue on Node.js
Node.js is a runtime environment for JavaScript applications. With the AWS SDK for JavaScript, you can manage Message Queue message queues and send and receive messages in Node.js.
Installing
Install the AWS SDK for JavaScript in Node.js by following the instructions on the official site.
npm install @aws-sdk/client-sqs@3.445.0
Getting started
- Create a service account.
- Assign the editor role to the service account.
- Create a static access key.
Set the environment variables:
export AWS_ACCESS_KEY_ID="<access_key_ID>"
export AWS_SECRET_ACCESS_KEY="<secret_key>"
Example
In this example:
- A connection with Message Queue is established.
- A message queue named
mq_example_nodejs_sdkis created. - A message with the text
test messageis sent to the queue. - The message is read from the queue and displayed in the terminal.
- The message queue is deleted.
var AWS = require('aws-sdk');
var mq = new AWS.SQS({
'region': 'ru-central1',
'endpoint': 'https://message-queue.api.cloud.yandex.net',
});
async function createQueue() {
params = {
'QueueName': 'mq_example_nodejs_sdk',
}
result = await mq.createQueue(params).promise();
queueUrl = result['QueueUrl'];
console.log('Queue created, URL: ' + queueUrl);
return queueUrl;
}
async function sendMessage(queueUrl) {
params = {
'QueueUrl': queueUrl,
'MessageBody': 'test message',
}
result = await mq.sendMessage(params).promise();
console.log('Message sent, ID: ' + result['MessageId']);
}
async function receiveMessage() {
params = {
'QueueUrl': queueUrl,
'WaitTimeSeconds': 10,
}
result = await mq.receiveMessage(params).promise();
result['Messages'].forEach(async function(msg) {
console.log('Message received')
console.log('ID: ' + msg['MessageId'])
console.log('Body: ' + msg['Body'])
deleteParams = {
'QueueUrl': queueUrl,
'ReceiptHandle': msg['ReceiptHandle'],
}
await mq.deleteMessage(deleteParams).promise()
})
}
async function deleteQueue() {
params = {
'QueueUrl': queueUrl,
}
result = await mq.deleteQueue(params).promise();
console.log('Queue deleted')
}
async function main() {
queueUrl = await createQueue();
await sendMessage(queueUrl);
await receiveMessage(queueUrl);
await deleteQueue(queueUrl);
}
main()