ES6 Promise / Typescript and the Bluebird Promise

Question

I have a nodejs / typescript 2 project and use the es6-promise package. Now i would like to get rid of the extra package because i can target ES6 in typescript directly.

Answer 1

Since there is no [Symbol.toStringTag] in Bluebird, it's incompatible indeed. There are other things that differ Bluebird implementation from native Promise - scheduler, error handling... The correct way to handle this is:

const promise: Promise = Promise.resolve(bluebirdPromise);

If runtime compatibility is not an issue for sure, this can be addressed with type casting only in relatively type-safe manner:

const promise: Promise = >>bluebirdPromise;

or

const promise: Promise = >>bluebirdPromise;