APIRouter for modular routes in FastAPI - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to import APIRouter from FastAPI.

FastAPI

from fastapi import [1]

Drag options to blanks, or click blank then click option'

ADepends

BFastAPI

CRequest

DAPIRouter

Attempts:

3 left

💡 Hint

Common Mistakes

Importing FastAPI instead of APIRouter

Using Request or Depends which are unrelated here

You import APIRouter from FastAPI to create modular route groups.

2fill in blank

medium

Complete the code to create a new APIRouter instance.

FastAPI

router = [1]()

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AAPIRouter

BFastAPI

CDepends

DRequest

Attempts:

3 left

💡 Hint

Common Mistakes

Trying to create FastAPI instance instead of APIRouter

Using Depends or Request which are not constructors

You create a router by calling APIRouter().

3fill in blank

hard

Fix the error in the route decorator to use the router instead of app.

FastAPI

@[1].get("/items")
async def read_items():
    return [{"item_id": "foo"}]

Drag options to blanks, or click blank then click option'

Aapp

BDepends

Crouter

DFastAPI

Attempts:

3 left

💡 Hint

Common Mistakes

Using @app.get instead of @router.get

Using FastAPI or Depends in decorator

Routes in modular files use the router instance, not the main app.

4fill in blank

hard

Fill both blanks to include the router in the main FastAPI app.

FastAPI

from fastapi import FastAPI

app = FastAPI()
app.[1](router, prefix=[2])

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Ainclude_router

Badd_route

C"/api"

D"/items"

Attempts:

3 left

💡 Hint

Common Mistakes

Using add_route which is not for routers

Wrong prefix string or missing quotes

You add modular routes to the main app using include_router with a prefix path.

5fill in blank

hard

Fill all three blanks to define a router with a GET route and include it in the app with prefix.

FastAPI

from fastapi import FastAPI, [1]

router = [1]()

@router.get("/hello")
async def say_hello():
    return {"message": "Hello"}

app = FastAPI()
app.[2](router, prefix=[3])

Drag options to blanks, or click blank then click option'

AAPIRouter

Binclude_router

C"/greet"

DFastAPI

Attempts:

3 left

💡 Hint

Common Mistakes

Using FastAPI instead of APIRouter for router

Wrong method name to include router

Missing quotes around prefix

This shows the full pattern: import APIRouter, create router, define route, then include router in app with prefix.