ATM 15 – 1 or many HTTP requests

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A mobile developer knocks on the server area door, a backend developer opens him:
- Is there any crafty fellow service here?
- No, just a microservice.
- Then give me a fiver.
- Here you go pal [gives 100 coins, 5 cents each].
Will the mobile developer pocket hold all 100 coins? Do mobile developers number these coins or just take one's word for it? Why haven't they just utilized an online money transfer?

During my presentation, I will not answer any of the above questions. Instead, I will tell you how modern mobile devices handle different granularities of HTTP communication.