mockttp-mvs/src/util/error.ts

Mock HTTP server for testing HTTP clients and stubbing webservices

export type ErrorLike = Partial<Error> & {
    // Various properties we might want to look for on errors:
    code?: string;
    cmd?: string;
    signal?: string;
    statusCode?: number;
    statusMessage?: string;
};

// Useful to easily cast and then examine errors that are otherwise 'unknown':
export function isErrorLike(error: any): error is ErrorLike {
    return typeof error === 'object' && (
        error instanceof Error ||
        error.message ||
        error.code ||
        error.stack
    )
}