getInnerError

getInnerError.ts

// Finds the inner-most error, returning a string.
export const getInnerError = (e, log?) => {
	if (!e) return undefined;
	const _log = typeof log !== 'undefined' ? (typeof log == "function" ? log : console.log) : undefined;
	if (_log) _log(e);
	if (typeof e == "string") return e;
	if (Array.isArray(e)) return e.map(_e => getInnerError(_e, log)).join(", ");
	// leave these separate so it recursesq through to each to always ensure a message can be found.
	return (
		getInnerError(e.error, log) ||
		getInnerError(e.errors, log) ||
		getInnerError(e.data, log) ||
		getInnerError(e.response, log) ||
		getInnerError(e.message, log) ||
		getInnerError(e.result, log) ||
		getInnerError(e.reason, log) ||
		"Unknown error."
	);
};