README.md

Tap a promise chain without affecting its value or state

install

``bash
yarn add promise-tap-then-catch
yarn-tool add promise-tap-then-catch
yt add promise-tap-then-catch
`

`typescript
/**
* Essentially like .then(), except that the value passed in is the value returned.
* @see http://bluebirdjs.com/docs/api/tap.html
*/
export declare function promiseTapThen

, V extends any = Awaited

>(promise: P,
handler: (value: V, ...argv: any[]) => any
): P;

export declare type Constructor = new (...args: any[]) => E;
export declare type ITapCatchArgvs> = [
...EC[],
(reason: EC, ...argv: any[]) => any
];

/**
* .tapCatch is a convenience method for reacting to errors without handling them with promises - similar to finally but only called on rejections. Useful for logging errors.
* @see http://bluebirdjs.com/docs/api/tapCatch.html
*/
export declare function promiseTapCatch

, E extends any = unknown, EC extends Constructor = any>(promise: P,
...inputs: ITapCatchArgvs | [
((reason: E, ...argv: any[]) => any)
]
): P;

export declare function promiseTapThenCatch

, V extends any = Awaited

, E extends any = unknown>(promise: P,
handlerThen: (value: V, ...argv: any[]) => any,
handlerCatch?: (reason: E, ...argv: any[]) => any
): P;

export declare function promiseTapLazyBoth

, V extends any = Awaited

, E extends any = unknown>(promise: P,
handlerThen: (value: V, ...argv: any[]) => any,
handlerCatch?: (reason: E, ...argv: any[]) => any
): P;

export default promiseTapLazyBoth;
``