import {Primitive, JsonObject} from 'type-fest'; export type ErrorObject = { name?: string; stack?: string; message?: string; code?: string; } & JsonObject; export interface Options { /** The maximum depth of properties to preserve when serializing/deserializing. @default Number.POSITIVE_INFINITY @example ``` import {serializeError} from 'serialize-error'; const error = new Error('🦄'); error.one = {two: {three: {}}}; console.log(serializeError(error, {maxDepth: 1})); //=> {name: 'Error', message: '…', one: {}} console.log(serializeError(error, {maxDepth: 2})); //=> {name: 'Error', message: '…', one: { two: {}}} ``` */ readonly maxDepth?: number; } /** Serialize an `Error` object into a plain object. Non-error values are passed through. Custom properties are preserved. Buffer properties are replaced with `[object Buffer]`. Circular references are handled. If the input object has a `.toJSON()` method, then it's called instead of serializing the object's properties. It's up to `.toJSON()` implementation to handle circular references and enumerability of the properties. @example ``` import {serializeError} from 'serialize-error'; const error = new Error('🦄'); console.log(error); //=> [Error: 🦄] console.log(serializeError(error)); //=> {name: 'Error', message: '🦄', stack: 'Error: 🦄\n at Object. …'} class ErrorWithDate extends Error { constructor() { super(); this.date = new Date(); } } const error = new ErrorWithDate(); console.log(serializeError(error)); //=> {date: '1970-01-01T00:00:00.000Z', name, message, stack} class ErrorWithToJSON extends Error { constructor() { super('🦄'); this.date = new Date(); } toJSON() { return serializeError(this); } } const error = new ErrorWithToJSON(); console.log(serializeError(error)); // => {date: '1970-01-01T00:00:00.000Z', message: '🦄', name, stack} ``` */ export function serializeError(error: ErrorType, options?: Options): ErrorType extends Primitive ? ErrorType : ErrorObject; /** Deserialize a plain object or any value into an `Error` object. `Error` objects are passed through. Non-error values are wrapped in a `NonError` error. Custom properties are preserved. Non-enumerable properties are kept non-enumerable (name, message, stack). Enumerable properties are kept enumerable (all properties besides the non-enumerable ones). Circular references are handled. @example ``` import {deserializeError} from 'serialize-error'; const error = deserializeError({ message: 'aaa', stack: 'at :1:13' }); console.log(error); // Error: aaa // at :1:13 ``` */ export function deserializeError(errorObject: ErrorObject | unknown, options?: Options): Error;