Multiple query parameters in FastAPI - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to define a FastAPI GET endpoint that accepts two query parameters: 'name' and 'age'.

FastAPI

from fastapi import FastAPI
app = FastAPI()

@app.get("/user")
async def get_user(name: str, age: [1]):
    return {"name": name, "age": age}

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

Aint

Bfloat

Cstr

Dbool

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'str' for age which should be a number.

Forgetting to specify the type for the query parameter.

The 'age' parameter should be an integer, so we use int as its type.

2fill in blank

medium

Complete the code to make the 'age' query parameter optional with a default value of 18.

FastAPI

from fastapi import FastAPI
app = FastAPI()

@app.get("/user")
async def get_user(name: str, age: [1] = 18):
    return {"name": name, "age": age}

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

AOptional[int]

Bstr

Cint

Dfloat

Attempts:

3 left

💡 Hint

Common Mistakes

Using Optional[int] without importing Optional.

Not assigning a default value to make the parameter optional.

To make 'age' optional with a default, just assign a default value to the type int. Using Optional[int] requires importing Optional and is not necessary here.

3fill in blank

hard

Fix the error in the code to correctly accept multiple query parameters 'q' and 'limit'.

FastAPI

from fastapi import FastAPI
app = FastAPI()

@app.get("/search")
async def search(q: str, limit: [1] = 10):
    return {"query": q, "limit": limit}

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

Astr

Bint

Cbool

Dfloat

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'str' for 'limit' which should be a number.

Forgetting to assign a default value to 'limit'.

The 'limit' parameter should be an integer to specify how many results to return.

4fill in blank

hard

Fill both blanks to create a FastAPI endpoint that accepts a list of tags as query parameters.

FastAPI

from fastapi import FastAPI
from typing import [1]
app = FastAPI()

@app.get("/items")
async def get_items(tags: [2][str] = []):
    return {"tags": tags}

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

AList

BDict

CSet

DTuple

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'Dict' or 'Set' which are not ordered lists.

Not importing 'List' from typing.

To accept multiple query parameters as a list, import and use List from typing.

5fill in blank

hard

Fill all three blanks to create a FastAPI endpoint that accepts multiple optional query parameters with default values.

FastAPI

from fastapi import FastAPI
from typing import [1], [2]
app = FastAPI()

@app.get("/filter")
async def filter_items(categories: [1][[2][str]] = None, limit: [3] = 5):
    return {"categories": categories, "limit": limit}

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

AOptional

BList

Cint

DDict

Attempts:

3 left

💡 Hint

Common Mistakes

Not importing Optional when using it.

Using Dict instead of List for categories.

Not assigning a default value to limit.

Use Optional to allow categories to be None or a list of strings. The limit parameter is an integer with a default value.