Modern APIs with FastAPI and Python Transcripts
Chapter: Building a realistic API
Lecture: Concept: Partitioning with routers

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0:00 If you're building a little toy app in some tutorial,
0:02 Yeah, you just create a main.py or app.py and
0:04 you cram all your stuff in there. That is doing such a disservice to people,
0:08 though, to show that way.
0:10 No one wants to build real apps and just have one ginormous file.
0:13 So how do we build real apps?
0:15 Well, we're gonna not directly use the API or the app,
0:20 whatever we named that variable.
0:21 Instead, we're gonna use this thing called the "APIrouter",
0:23 which allows us to define routes for a section of our API.
0:27 So here we have our weather API section and we're going to the router and
0:31 we're saying for the weather method, it's gonna respond to "/api
0:34 /weather" and notice it has a router object? In the views,
0:38 say home views, we also create a router,
0:40 and we say this one responds to "/" and we could even say,
0:44 don't include this thing in the schema.
0:45 We'll talk more about that later.
0:47 Once we have all of our routers set up,
0:49 then we go back to our main.py and we say import those items and say
0:53 include router from home router, include router from APIrouter, and as many of
0:58 these as you want. And this way we can partition our app by functionality, by
1:03 use Case, allows us to work with it more simply and understand it more simply and
1:07 just focus on the part of the app that we're really trying to work on,
1:11 which is one of the goals of software,
1:12 isn't it? Make it easy to maintain and evolve over time.
1:16 Definitely recommend that you use these routers for your API.