Skip to main content
When a Worker is instantiated, the most common usage is to specify a process function. Sometimes however, it is useful to be able to specify more than one function to process a job for a specific condition.

​
Using Switch Statements

You can use a simple switch case to differentiate your logic based on the job name: 
const worker = new Worker(
  'queueName',
  async job => {
    switch (job.name) {
      case 'taskType1': {
        await doSomeLogic1();
        break;
      }
      case 'taskType2': {
        await doSomeLogic2();
        break;
      }
    }
  },
  { connection },
);
This was a feature in the Bull package, but it creates a lot of confusion, so in order to provide an alternative, you can use this pattern. See #297 and #69 as reference.

​
Benefits of This Pattern

  • Single Worker Instance: Manage multiple job types without creating separate workers
  • Shared Resources: All job types can share connections, configuration, and state
  • Simple Logic: Easy to understand and maintain

Workers

Learn about worker creation and configuration

Job Types

Understand job data and naming

Build docs developers (and LLMs) love

Get started for freeTalk to us