How to make Retrofit execute methods in exact order?

Your question has nothing to do with Retrofit, this is a general async coding question about composing multiple async calls. There's three basic answers:

• Use synchronous calls and go async at a higher level.

• Use the callback from method 1 to trigger method 2

• Use RxJava for higher-order composing of streams. This would allow combing the result of the first API call with waiting for the loop in order to trigger the second API call.

  Observables.combineLatest(firstApiCall(), tenOperations())     .flatMap(secondApiCall())     .subscribe(...);