How APIs Work

Summary

An API is a contract that lets two pieces of software exchange data in a predictable format — understanding requests, responses and endpoints lets you scope integrations without guessing.

How to Learn This

1Use a tool like Postman to send a request to a free public API and inspect the response.
2Learn to read simple API documentation and identify required vs optional fields.
3Practice explaining an API integration to a non-technical stakeholder in one sentence.

Shipping & Post-Launch Monitoring

Client-Server Basics

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