Execute two observables at the same time without converting them to promises

Issue

I want to call a number of API endpoints at once (asynchronously). I get an Observable from a single API call, and I want to "await" them all together, and get the results from each call to handle as a collection, preferably with an option to handle the exceptions (if any) from each one. Much like asyncio.gather() but for Angular. I don't want to convert the observables to promises, and I don't want to use deprecated methods such forkJoin() or the async pipe. Is there any other solution?

Solution

forkJoin is actually not deprecated but some overrides of it are. An array of Observables or a dictionary are valid inputs to forkJoin.

This shouldn't throw any warnings about deprecation.

const sources$: Observable<any>[] = [obs1$, obs2$, obs3$]
forkJoin(sources$).subscribe()

Answered By - Lukasz Gawrys