undici-retry/dist/lib/either.d.ts

Library for handling retry logic with undici HTTP client

type Left<T> = {
    error: T;
    result?: never;
};
type Right<U> = {
    error?: never;
    result: U;
};
/**
 * Either is a functional programming type which is used to communicate errors happening in potentially recoverable scenarios.
 * It can return either an error (Left side) or a resolved result (Right side), but not both.
 * It is up to caller of the function to handle received error or throw (Public)NonRecoverableError if it cannot.
 *
 * @see {@link https://antman-does-software.com/stop-catching-errors-in-typescript-use-the-either-type-to-make-your-code-predictable Further reading on motivation for Either type}
 */
export type Either<T, U> = NonNullable<Left<T> | Right<U>>;
export {};