April 2017
Intermediate to advanced
454 pages
12h 51m
English
Requests to an external service take ages from the perspective of a computer. In human terms, it would be like sending a satellite to Jupiter and waiting for it to come back to Earth. You can't be 100% sure that the travel will ever be complete and how much time will the travel actually take. Networks are notoriously flacky and it's better to come prepared in case our request does not complete successfully.
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