Six short, click-through lessons on how services actually talk to each other.
Fixed endpoints, or exactly the fields you ask for.
start →The server calls you, instead of you asking over and over.
start →Logging in with another service, without sharing your password.
start →Capping how many requests you can make, and when.
start →Changing an API without breaking who already depends on it.
start →Making a retried request safe to send twice.
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