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A deep dive into the purpose of the async for loop in Python. How to use the async for loop, why to use the async for loop, and how to write your own async iterators using both async generators as well as by learning the async iterator protocols and writing your own async iterator. We'll see an example ASGI app that computes the SHA256 hash of an uploaded file using Starlette and uvicorn, and write a test client using httpx. Then we implement a simple rate limiter.

― mCoding with James Murphy (https://mcoding.io)

Source code: https://github.com/mCodingLLC/VideosS...
Starlette: https://github.com/encode/starlette
FastAPI: https://github.com/tiangolo/fastapi
Httpx: https://github.com/encode/httpx
Uvicorn: https://github.com/encode/uvicorn

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CHAPTERS
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0:00 Intro
0:36 Async for syntax and purpose
2:17 Async web app
8:30 Async generators
11:01 Async iterator protocols