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LambdaError

Stentor API Reference

Stentor API Reference / stentor-utils/src / LambdaError

Class: LambdaError

Defined in: packages/stentor-utils/src/error/LambdaError.ts:7

An Error that allows for a status code to be stored. By default the status code is 500.

Extends​

  • Error

Constructors​

Constructor​

new LambdaError(message, statusCode?): LambdaError

Defined in: packages/stentor-utils/src/error/LambdaError.ts:16

Creates an instance of LambdaError.

Parameters​

message​

Error message to pass.

string | Error | LambdaError

statusCode?​

number

The status code linked to the error message. Default is 500.

Returns​

LambdaError

Overrides​

Error.constructor

Properties​

stackTraceLimit​

static stackTraceLimit: number

Defined in: 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​

Error.stackTraceLimit

statusCode?​

optional statusCode: number

Defined in: packages/stentor-utils/src/error/LambdaError.ts:8

cause?​

optional cause: unknown

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

Inherited from​

Error.cause

name​

name: string

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

Inherited from​

Error.name

message​

message: string

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

Inherited from​

Error.message

stack?​

optional stack: string

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

Inherited from​

Error.stack

Methods​

captureStackTrace()​

static captureStackTrace(targetObject, constructorOpt?): void

Defined in: 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​

targetObject​

object

constructorOpt?​

Function

Returns​

void

Inherited from​

Error.captureStackTrace

prepareStackTrace()​

static prepareStackTrace(err, stackTraces): any

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

Parameters​

err​

Error

stackTraces​

CallSite[]

Returns​

any

See​

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

Inherited from​

Error.prepareStackTrace

isError()​

static isError(error): error is Error

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

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

Parameters​

error​

unknown

Returns​

error is Error

Inherited from​

Error.isError