Rack ‘em, Stack ‘em Web Apps

on YouTube ↗33m

" summary

Shows Rack as a minimal HTTP interface: a one‑method app in config.ru that returns [status, headers, body] and grows into a RESTful API with GET/POST parsing via Rack::Request, tests using rack/test and minitest, and a middleware that blocks requests without an X-API-Key (returns 403). Demonstrates response.finish adding Content-Length, mounting Rack apps inside Rails and compatibility with Sinatra, and links to a working demo at fight.robotlikes.com for the robot‑fighting example.

AI-written summary · about

" chapters (14)

1. 0:00Introduction
2. 1:20What is Rack
3. 4:59Rack code
4. 8:40Rack test
5. 11:10Incoming web request
6. 13:23Routing
7. 15:30Rack Requests
8. 18:12sinatra
9. 19:39post
10. 22:27response
11. 24:56middleware
12. 28:14rackstatic
13. 28:58Rails
14. 31:24Wrap up

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