https://github.com/aarontravass/az-queue-consumer

Lightweight Azure Queue Consumer
https://github.com/aarontravass/az-queue-consumer

azure consumer nodejs queue typescript

Last synced: 17 days ago
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Lightweight Azure Queue Consumer

• Host: GitHub
• URL: https://github.com/aarontravass/az-queue-consumer
• Owner: aarontravass
• License: mit
• Created: 2023-07-21T05:30:51.000Z (over 1 year ago)
• Default Branch: main
• Last Pushed: 2024-09-26T18:53:37.000Z (about 2 months ago)
• Last Synced: 2024-10-28T06:30:06.372Z (20 days ago)
• Topics: azure, consumer, nodejs, queue, typescript
• Language: TypeScript
• Homepage: https://www.npmjs.com/package/az-queue-consumer
• Size: 634 KB
• Stars: 1
• Watchers: 2
• Forks: 0
• Open Issues: 4
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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Azure Queue Consumer


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Azure Queue Consumer is a simple consumer that allows you to handle queue messages without having to worry about setting up the azure framework.

## Installation

Node 18+ is required

```pnpm i az-queue-consumer ```

or

```npm i az-queue-consumer```

## Examples

```ts

import { AzureQueueConsumer } from 'az-queue-consumer';

const messageHandler = (messages) => {

  // do something with the message

}

const queueName = "sample-queue";

const connectionString = "DefaultEndpointsProtocol=https;AccountName=something;AccountKey=something==;EndpointSuffix=core.windows.net";

const listener = new AzureQueueConsumer(queueName, connectionString, messageHandler);

listener.on('queue::ready', () => { console.log("Listener is ready to receive messages!") });

listener.listen();

```

## API

`listen` - The listen function starts the listener which in turns polls the queue every 10 seconds. The default, which is 10 seconds, can be chaged by setting `pollingTime` in options in the constructor.

`on` - Adds a event listener for specific events. Events are typed and custom handlers need to be passed. See below for full list of events

`stop` - Stops the listener and completes execution of any ongoing handler before quitting. 

## Events

* `queue::ready` - emitted when the client connects to the queue and is ready to receive messages

* `message::onReceive` - this event is emitted when the client receives a message

* `handler::finish` - once the handler finishes executing, this event is emitted

* `handler::error` - if the handler fails with an exception, the exception is emitted along with this event

* `listener::error` - the listener can encounter errors even after connecting such as connection errors. This event gets emitted during such as errors

* `message::preDelete` - Before deleting the message, this event is fired

* `message::afterDelete` - After successful deletion, this event gets fired

* `queue::shutdown` - when `stop()` is called, the queue emits this event and finished executing the current message

## Credits

Inspired by [sqs-consumer](https://github.com/bbc/sqs-consumer)