common/docs/util/classes/_ext_error_.exterror.md

name: ExtError

signature: ExtError (message: string = '', code: number = UNKNOWN_ERROR, value: any)

summary: Extension to the basic JS Error.

description: The built-in JavaScript Error class is extended by adding a code to allow for Error categorization. In addition to the normal stack, message, the numeric code and data (any types) parameters are available on the object.

example:

const { ExtError } from '@polkadot/util');

throw new ExtError('some message', ExtError.CODES.METHOD_NOT_FOUND); // => error.code = -32601

Hierarchy

Error

↳ ExtError

Implements

• ExtErrorInterface

Constructors

constructor

⊕ new ExtError(message?: string, code?: number, data?: any): ExtError

Defined in ext/error.ts:44

Parameters:

Name	Type	Default value
Default value message	string	""
Default value code	number	UNKNOWN
Optional data	any	-

Returns: ExtError

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Properties

code

● code: number

Defined in ext/error.ts:36

---

data

● data: any

Defined in ext/error.ts:38

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message

● message: string

Overrides Error.message

Defined in ext/error.ts:40

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name

● name: string

Overrides Error.name

Defined in ext/error.ts:42

---

stack

● stack: string

Overrides Error.stack

Defined in ext/error.ts:44

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<Static> Error

● Error: ErrorConstructor

Defined in /home/travis/build/polkadot-js/common/node_modules/typescript/lib/lib.es5.d.ts:914

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Object literals

<Static> CODES

CODES: object

Defined in ext/error.ts:61

ASSERT

● ASSERT: number = -90009

Defined in ext/error.ts:62

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INVALID_JSONRPC

● INVALID_JSONRPC: number = -99998

Defined in ext/error.ts:64

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METHOD_NOT_FOUND

● METHOD_NOT_FOUND: number = -32601

Defined in ext/error.ts:65

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UNKNOWN

● UNKNOWN: number

Defined in ext/error.ts:63

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