WorkerRegistrationError

Defined in: packages/core/src/shared/errors.ts:133

Error thrown when attempting to register a worker for a job name that already has a registered worker, without explicitly allowing replacement.

Example

try {
  monque.register('send-email', handler1);
  monque.register('send-email', handler2); // throws
} catch (error) {
  if (error instanceof WorkerRegistrationError) {
    console.error('Worker already registered for:', error.jobName);
  }
}

// To intentionally replace a worker:
monque.register('send-email', handler2, { replace: true });

Extends

• MonqueError

Constructors

Constructor

new WorkerRegistrationError(message, jobName): WorkerRegistrationError;

Defined in: packages/core/src/shared/errors.ts:134

Parameters

Parameter	Type
message	string
jobName	string

Returns

WorkerRegistrationError

Overrides

MonqueError.constructor

Properties

cause?

optional cause: unknown;

Defined in: node_modules/.bun/typescript@5.9.3/node_modules/typescript/lib/lib.es2022.error.d.ts:26

Inherited from

MonqueError.cause

---

jobName

readonly jobName: string;

Defined in: packages/core/src/shared/errors.ts:136

---

message

message: string;

Defined in: node_modules/.bun/typescript@5.9.3/node_modules/typescript/lib/lib.es5.d.ts:1077

Inherited from

MonqueError.message

---

name

name: string;

Defined in: node_modules/.bun/typescript@5.9.3/node_modules/typescript/lib/lib.es5.d.ts:1076

Inherited from

MonqueError.name

---

stack?

optional stack: string;

Defined in: node_modules/.bun/typescript@5.9.3/node_modules/typescript/lib/lib.es5.d.ts:1078

Inherited from

MonqueError.stack

---

stackTraceLimit

static stackTraceLimit: number;

Defined in: node_modules/.bun/@types+node@22.19.7/node_modules/@types/node/globals.d.ts:68

The Error.stackTraceLimit property specifies the number of stack frames collected by a stack trace (whether generated by new Error().stack or Error.captureStackTrace(obj)).

The default value is 10 but may be set to any valid JavaScript number. Changes will affect any stack trace captured after the value has been changed.

If set to a non-number value, or set to a negative number, stack traces will not capture any frames.

Inherited from

MonqueError.stackTraceLimit

Methods

captureStackTrace()

static captureStackTrace(targetObject, constructorOpt?): void;

Defined in: node_modules/.bun/@types+node@22.19.7/node_modules/@types/node/globals.d.ts:52

Creates a .stack property on targetObject, which when accessed returns a string representing the location in the code at which Error.captureStackTrace() was called.

const myObject = {};
Error.captureStackTrace(myObject);
myObject.stack;  // Similar to `new Error().stack`

The first line of the trace will be prefixed with ${myObject.name}: ${myObject.message}.

The optional constructorOpt argument accepts a function. If given, all frames above constructorOpt, including constructorOpt, will be omitted from the generated stack trace.

The constructorOpt argument is useful for hiding implementation details of error generation from the user. For instance:

function a() {
  b();
}

function b() {
  c();
}

function c() {
  // Create an error without stack trace to avoid calculating the stack trace twice.
  const { stackTraceLimit } = Error;
  Error.stackTraceLimit = 0;
  const error = new Error();
  Error.stackTraceLimit = stackTraceLimit;

  // Capture the stack trace above function b
  Error.captureStackTrace(error, b); // Neither function c, nor b is included in the stack trace
  throw error;
}

a();

Parameters

Parameter	Type
targetObject	object
constructorOpt?	Function

Returns

void

Inherited from

MonqueError.captureStackTrace

---

isError()

static isError(error): error is Error;

Defined in: node_modules/.bun/typescript@5.9.3/node_modules/typescript/lib/lib.esnext.error.d.ts:23

Indicates whether the argument provided is a built-in Error instance or not.

Parameters

Parameter	Type
error	unknown

Returns

error is Error

Inherited from

MonqueError.isError

---

prepareStackTrace()

static prepareStackTrace(err, stackTraces): any;

Defined in: node_modules/.bun/@types+node@22.19.7/node_modules/@types/node/globals.d.ts:56

Parameters

Parameter	Type
err	Error
stackTraces	CallSite[]

Returns

any

See

https://v8.dev/docs/stack-trace-api#customizing-stack-traces

Inherited from

MonqueError.prepareStackTrace