*** title: "Types" generated: true --------------- ## BackoffStrategy Defines the backoff strategy used when retrying failed jobs. Returns the delay in ms that should pass before the failed job is retried. ```ts title="Signature" type BackoffStrategy = (queueName: string, attemptsMade: number, job: Job) => number ``` ## JobUpdate Job update status as returned from the [SubscribableJob](/current/core/reference/typescript-api/job-queue/subscribable-job#subscribablejob)'s `update()` method. ```ts title="Signature" type JobUpdate> = Pick< Job, 'id' | 'state' | 'progress' | 'result' | 'error' | 'data' > ``` ## JobUpdateOptions Job update options, that you can specify by calling [SubscribableJob](/current/core/reference/typescript-api/job-queue/subscribable-job#subscribablejob) `updates` method. ```ts title="Signature" type JobUpdateOptions = { pollInterval?: number; timeoutMs?: number; errorOnFail?: boolean; } ```

### pollInterval \ ### timeoutMs \ ### errorOnFail \

## CreateQueueOptions Used to configure a new [JobQueue](/current/core/reference/typescript-api/job-queue/#jobqueue) instance. ```ts title="Signature" interface CreateQueueOptions> { name: string; process: (job: Job) => Promise; } ```

### name \ The name of the queue, e.g. "image processing", "re-indexing" etc. ### process \Job) => Promise`} /> Defines the work to be done for each job in the queue. The returned promise should resolve when the job is complete, or be rejected in case of an error.

## JobData A JSON-serializable data type which provides a [Job](/current/core/reference/typescript-api/job-queue/job#job)with the data it needs to be processed. ```ts title="Signature" type JobData = JsonCompatible ``` ## JobConfig Used to instantiate a new [Job](/current/core/reference/typescript-api/job-queue/job#job) ```ts title="Signature" interface JobConfig> { queueName: string; data: T; retries?: number; attempts?: number; id?: ID; state?: JobState; progress?: number; result?: any; error?: any; createdAt?: Date; startedAt?: Date; settledAt?: Date; } ```

### queueName \ ### data \ ### retries \ ### attempts \ ### id \ID`} /> ### state \JobState`} /> ### progress \ ### result \ ### error \ ### createdAt \ ### startedAt \ ### settledAt \