@actualwave/resolve-or-timeout

Function that runs in Promise.race() your promise and a timeout, if timeout completes first, resulting promise rejects with error.

export const resolveOrTimeout = <T = unknown>(
  
  // Promise or a function that will be passed to a Promise object
  promiseOrHandler:
    | Promise<T>
    | ((
        resolve: (data: T) => void,
        reject?: (data: unknown) => void
      ) => unknown),
        
  // timeout in milliseconds. if 0, race condition will not apply and original promise will be returned as is
  timeout: number, 
    
  // optional, timeout error message
  timeoutError?: string, 
  
  // optional callback that will be executed when timeout completes first
  onTimeout?: (msg: string) => void 
) => Promise<T>;

Example

try {
  /*
    if request resolves in less than 500 ms, you will get response
  */
  const response = await resolveOrTimeout(
    fetch('/super/long/request'),
    500,
    'Sorry, your request takes toooooo long.',
  );
} catch (error) {
  /*
    if request takes longer than 500 ms, promise rejects with error message
  */
}

It accepts promise or a function that will be passed to a promise.

const response = await resolveOrTimeout(
  (resolve) => {
    // do something then resolve
  },
  500
);