How to properly chain rxjs 6 observables?

Question

Any suggestions, how this can be rewritten in more promise-chaining style?:

this.apiService.sendPutRequest(\'/api/users/activate\', usrObj).pipe(
        map         


        

Answer 1

use SwitchMap for that.

mainApiCall.pipe(
    switchMap(result=>secondApiCall(result)),
    switchMap(resultFromSecondApiCall=>thirdApiCall(resultFromSecond))
...
and so on
)