The reading ends and the sending begins — with tools already on your machine. The browser makes your first API call from its address bar; DevTools shows you every request an app was already making; curl sends exactly what you say and becomes your voice for the rest of the book. Then the asks sharpen: query parameters that carve 214 stations down to the twelve you meant, and your first POST — the request that creates something — practiced in a sandbox where repeating it teaches the lesson instead of costing money.
Two chapters of reading fluency, and now the hands come off the desk. This chapter has one shape: the same act — sending a request and reading the answer — performed three ways, each with more of you in charge. The browser did it for you all along. DevTools shows you it happening. And curl does it because you said so, exactly as you said it.
Along the way, the asks get sharper and braver: query parameters that turn "everything" into "the twelve I wanted," and, at the chapter's end, your first POST — the request that changes something instead of looking at it, run in a sandbox where the lesson about repeating it costs nothing. By the last page you will have personally read, watched, filtered, and created. By the last page you have done the job, not read about it.
One act, three levels of control
The browser did it for youGET in the address bar
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DevTools shows it happeningthe app's own calls, live