Named jobs in NestJS - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to define a named job in a NestJS Bull queue.

NestJS

this.queue.add('[1]', { data: payload });

Drag options to blanks, or click blank then click option'

Adefault

BsendEmail

Cjob

Dprocess

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'process' as job name which is a method name, not a job name.

Omitting the job name string.

The first argument to add is the job name, here 'sendEmail'.

2fill in blank

medium

Complete the code to process a named job in a NestJS Bull processor.

NestJS

@Processor('email')
export class EmailProcessor {
  @Process('[1]')
  handleSendEmail(job: Job) {
    // handle job
  }
}

Drag options to blanks, or click blank then click option'

Adefault

BemailJob

Cprocess

DsendEmail

Attempts:

3 left

💡 Hint

Common Mistakes

Using a different job name than the one used when adding the job.

Using method names instead of job names in the decorator.

The @Process decorator takes the job name to handle, matching the name used when adding the job.

3fill in blank

hard

Fix the error in the code to correctly add a named job with options.

NestJS

this.queue.add([1], payload, { repeat: { cron: '0 0 * * *' } });

Drag options to blanks, or click blank then click option'

A'sendEmail'

BsendEmail

C'process'

Dprocess

Attempts:

3 left

💡 Hint

Common Mistakes

Forgetting to put quotes around the job name string.

Using variable names instead of string literals.

The job name must be a string, so it needs quotes around it.

4fill in blank

hard

Fill both blanks to define and process a named job in NestJS Bull.

NestJS

this.queue.add('[1]', { userId: 123 });

@Processor('notifications')
export class NotificationProcessor {
  @Process('[2]')
  handleNotification(job: Job) {
    // process notification
  }
}

Drag options to blanks, or click blank then click option'

AsendNotification

BsendEmail

Attempts:

3 left

💡 Hint

Common Mistakes

Using different job names for adding and processing.

Mixing job names like 'sendEmail' and 'sendNotification'.

The job name must be the same when adding and processing. Here, 'sendNotification' is used consistently.

5fill in blank

hard

Fill all three blanks to add a named job with options and process it in NestJS Bull.

NestJS

this.queue.add('[1]', { orderId: 456 }, { delay: [2] });

@Processor('orders')
export class OrderProcessor {
  @Process('[3]')
  handleOrder(job: Job) {
    // process order
  }
}

Drag options to blanks, or click blank then click option'

AprocessOrder

B5000

DsendOrder

Attempts:

3 left

💡 Hint

Common Mistakes

Using different job names in add and process.

Putting delay as a string instead of a number.

Omitting the delay option.

The job name 'processOrder' is used consistently. The delay option is a number in milliseconds (5000 = 5 seconds).