Trailing slash behavior in FastAPI - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to define a FastAPI route that responds to GET requests at '/items/'.

FastAPI

from fastapi import FastAPI
app = FastAPI()

@app.get("/items[1]")
def read_items():
    return {"message": "Items list"}

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

A/

C//

Ditems

Attempts:

3 left

💡 Hint

Common Mistakes

Omitting the trailing slash when the route expects it causes a 404 error.

Using double slashes '//' is invalid syntax for route paths.

The trailing slash '/' in the route path means the URL must end with a slash to match this route.

2fill in blank

medium

Complete the code to define a FastAPI route that responds to GET requests at '/users' without a trailing slash.

FastAPI

from fastapi import FastAPI
app = FastAPI()

@app.get("/users[1]")
def read_users():
    return {"message": "Users list"}

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

A/

C//

Dusers

Attempts:

3 left

💡 Hint

Common Mistakes

Adding a trailing slash when the route is defined without one causes 404 errors.

Using double slashes '//' is invalid and causes errors.

Omitting the trailing slash means the route matches URLs without a slash at the end.

3fill in blank

hard

Fix the error in the route decorator to correctly handle requests to '/products/'.

FastAPI

from fastapi import FastAPI
app = FastAPI()

@app.get("/products[1]")
def read_products():
    return {"message": "Products list"}

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

B/

Cproducts

D//

Attempts:

3 left

💡 Hint

Common Mistakes

Leaving out the trailing slash causes 404 errors when the URL ends with a slash.

Using double slashes '//' is invalid.

The route must include the trailing slash '/' to match URLs ending with '/products/'.

4fill in blank

hard

Complete the code to create a route that matches '/orders' without a trailing slash and returns a JSON message.

FastAPI

from fastapi import FastAPI
app = FastAPI()

@app.get("/orders")
def read_orders():
    return {"message": "Orders[1]"}

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

B/

C list

Ds

Attempts:

3 left

💡 Hint

Common Mistakes

Adding a slash in BLANK_1 causes route mismatch.

Not adding descriptive text in the message makes output unclear.

The route path has no trailing slash, so BLANK_1 is empty. The message adds ' list' to 'Orders' for clarity.

5fill in blank

hard

Fill all three blanks to define a route that matches '/customers/' with trailing slash and returns a JSON with key 'name' and value 'Customer'.

FastAPI

from fastapi import FastAPI
app = FastAPI()

@app.get("/customers[1]")
def read_customers():
    return {{"[2]": "[3]"}}

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

A/

Bname

CCustomer

Dcustomer

Attempts:

3 left

💡 Hint

Common Mistakes

Omitting the trailing slash causes route mismatch.

Using wrong keys or values in the returned JSON.

The route includes a trailing slash '/'. The returned JSON has key 'name' and value 'Customer'.