@othree.io/excuses
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Excuses
39 lines • 1.53 kB
JavaScript
/**
* Generates a JSON string containing error details.
*
* @param {string} [code] - Optional error code.
* @param {string} [message] - Optional error message. If not provided, defaults to `UnexpectedError.ERROR`.
* @returns {string} A JSON string with `code` and `message` properties.
*/
const getErrorDetails = (code, message) => {
return {
code,
message: message ? message : UnexpectedError.ERROR
};
};
/**
* Custom Error class representing an unexpected error.
*/
export class UnexpectedError extends Error {
/** Static error code to identify the error type. */
static ERROR = 'UnexpectedError';
/** Error code associated with this error instance. */
code;
errorDetails;
/**
* Creates a new UnexpectedError.
*
* @param {string} [code] - Optional error code.
* @param {string} [message] - Optional error message. If not provided, a default error message is generated by `getErrorJSONString`.
*/
constructor(code, message) {
super(JSON.stringify(getErrorDetails(code, message)));
// https://github.com/Microsoft/TypeScript-wiki/blob/main/Breaking-Changes.md#extending-built-ins-like-error-array-and-map-may-no-longer-work
Object.setPrototypeOf(this, new.target.prototype); // restore prototype chain
this.name = UnexpectedError.ERROR;
this.stack = new Error().stack;
this.code = code;
this.errorDetails = getErrorDetails(code, message);
}
}
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