Evolutty

evolutty is an asynchronous message dispatcher for concurrent tasks processing, with the following features:

• Encourages decoupling from message providers and consumers
• Easy to extend and customize
• Easy error handling, including integration with sentry
• Easy to create one or multiple services
• Generic Handlers
• Bull integration
• AWS SQS integration
• RabbitMQ integration

---

:information_source: Currently, BullMQ, RabbitMQ and AWS SQS are supported

Installation

npm i @coaktion/evolutty

Usage

import {
  BullMQHandler,
  BullMQRouter,
  EvoluttyManager,
  RabbitMQHandler,
  RabbitMQRouter,
  SQSHandler,
  SQSRouter
} from '@coaktion/evolutty';

export class MyBullHandler extends BullMQHandler {
  async handle(content: object, metadata: object): Promise<boolean> {
    // code here
    return true;
  }
}

export class MySQSHandler extends SQSHandler {
  async handle(content: object, metadata: object): Promise<boolean> {
    // code here
    return true;
  }
}

export class MyRabbitMQHandler extends RabbitMQHandler {
  async handle(content: object, metadata: object): Promise<boolean> {
    // code here
    return true;
  }
}

const routers = [
  {
    routeType: BullMQRouter,
    handler: MyBullHandler,
    queueName: 'my_queue_bull'
  },
  {
    routeType: SQSRouter,
    handler: MySQSHandler,
    routeParams: {
      accessKeyId: 'test',
      secretAccessKey: 'test',
      region: 'us-east-1',
      visibilityTimeout: 10
    },
    queueName: 'my_queue_sqs'
  },
  {
    routeType: RabbitMQRouter,
    handler: MyRabbitMQHandler,
    queueName: 'my_queue_rabbitmq',
    routeParams: {
      username: 'rabbit_user',
      password: '*******',
      debug: true
    }
  }
];

const manager = new EvoluttyManager(routers);
manager.start();

Observations

• The queueName option is used as a prefix to fetch queues when the prefixBasedQueues option is equals to true on SQS route params (default is false)

• You can also customize the logger by setting the environment variables in local.env file:

LOG_LEVEL=debug # default is info
LOG_FILE_PATH=my_app.log # file that will store the logs if LOG_TRANSPORTS contains file
LOG_TRANSPORTS=console,file # comma separated values (currently only console and file are supported)
LOG_FORMAT=json # json or simple

License

Evolutty is MIT

Contributing

Please read CONTRIBUTING.md for details on our code of conduct, and the process for submitting pull requests to us.

Authors

• Paulo Tinoco - Initial work - paulo-tinoco