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https://github.com/ackeecz/fuqu

Fuqu is tiny package for node backend development which is used for manipulating with queues.
https://github.com/ackeecz/fuqu

ackee backend node nodejs queue

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Fuqu is tiny package for node backend development which is used for manipulating with queues.

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# FuQu _[/fʌkjuː/](https://en.wikipedia.org/wiki/Help:IPA/English)_

Rude MQ wrapper that handles logging and message acknowlidgement for you

[![Build Status](https://img.shields.io/travis/AckeeCZ/fuqu.svg?style=flat-square)](https://travis-ci.org/AckeeCZ/fuqu)
[![Known Vulnerabilities](https://img.shields.io/snyk/vulnerabilities/github/AckeeCZ/fuqu.svg?style=flat-square)](https://snyk.io/test/github/AckeeCZ/fuqu)
[![Coverage](https://img.shields.io/coveralls/github/AckeeCZ/fuqu?style=flat-square)](https://coveralls.io/github/AckeeCZ/fuqu)
[![Npm](https://img.shields.io/npm/v/fuqu.svg?style=flat-square)](https://www.npmjs.com/package/fuqu)
[![License](https://img.shields.io/github/license/AckeeCZ/fuqu.svg?style=flat-square)](https://github.com/AckeeCZ/fuqu/blob/master/LICENSE)

- 📨 Extensive predictable logging
- ☔ Covered with integration tests
- 🐇 Supports Google Pub/Sub and RabbitMQ
- 🤡 Mock implementation for your tests
- 💙 Typesafe message and attributes
- 🚦 Automatic message acknowlidgement
- 💓 Check heartbeat if connection is alive
- ⛔ Configurable consumer flow control
- 🐛 Debuggable with `DEBUG:*`

## Getting started

```bash
npm install fuqu
```

```typescript
// Create instance
const fuQu = fuQuRabbit<{ hello: string }>(connection, 'my-queue');
// Subscribe handler
fuQu.subscribe(msg => {
console.log('Got this:', msg);
});
// Publish message
fuQu.publish({ hello: 'FuQu!' });
```

- Handler may be async
- Messages are automatically acknowledged. If there is an error, they are `nack`ed instead.

### Create instance
```typescript
import { connect } from 'amqplib';
import { PubSub } from '@google-cloud/pubsub';
import { fuQuPubSub, fuQuRabbit } from 'fuqu';

// RabbitMQ
const connection = await connect('amqp://localhost');
const fuQu1 = fuQuRabbit(connection, 'my-queue');

// Pub/Sub
const pubSub = new PubSub({/*...*/})
const fuQu1 = fuQuPubSub(pubSub, 'my-queue');
```

### Options
```typescript
const fuQu = fuQuRabbit(connection, 'my-queue', {
// Throttle your consumers
maxMessages: 1,
// Log all events (typesafe, check for shapes!)
eventLogger: event => {
if (event.action !== 'hc') {
console.log(`FuQu [${event.topicName}] (${event.action})`, event)
}
},
// Mock with in-memory mock for your tests
useMock: process.env.NODE_ENV === 'test',
// Adapter specific options
assertQueueOptions: {/* ... */}
});
```
- Mock implements all general FuQu options. Accessing underlying message is unsafe and adapter specific options are ignored
- `eventLogger` is for application logging, if no handler is passed, logging is disabled
- For debug purposes, you can also enable logging via `DEBUG:*`, `DEBUG:fuqu:*` or `DEBUG:fuqu:my-topic:*`
- `maxMessages` is transformed into specific options for each adapter, using custom adapter options might overwrite the behavior

### Rude mode
If you want to have optimal FuQu expirience, use imports from `fuqu/dist/real`.

## Testing

For running tests, start the following containers 🐳

```
docker-compose up --build
```

## License

This project is licensed under [MIT](./LICENSE).