Async HTTP client calls in FastAPI - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to import the async HTTP client from httpx.

FastAPI

from [1] import AsyncClient

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

Aasyncio

Brequests

Cfastapi

Dhttpx

Attempts:

3 left

💡 Hint

Common Mistakes

Importing AsyncClient from requests instead of httpx.

Trying to import AsyncClient from fastapi.

The AsyncClient class is imported from the httpx library to make async HTTP calls.

2fill in blank

medium

Complete the code to create an async function that makes a GET request using AsyncClient.

FastAPI

async def fetch_data(url: str):
    async with AsyncClient() as client:
        response = await client.[1](url)
        return response.text

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

Apost

Bput

Cget

Ddelete

Attempts:

3 left

💡 Hint

Common Mistakes

Using post instead of get for fetching data.

Forgetting to await the async call.

To retrieve data, the get method is used on the async client.

3fill in blank

hard

Fix the error in the async function to correctly return JSON data from the response.

FastAPI

async def fetch_json(url: str):
    async with AsyncClient() as client:
        response = await client.get(url)
        data = await response.[1]()
        return data

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

Atext

Bjson

Ccontent

Dread

Attempts:

3 left

💡 Hint

Common Mistakes

Using response.text() which returns a string, not parsed JSON.

Using response.content() which returns bytes.

The json() method asynchronously parses the response body as JSON.

4fill in blank

hard

Fill both blanks to create a FastAPI route that calls the async fetch_data function and returns the result.

FastAPI

from fastapi import FastAPI

app = FastAPI()

@app.[1]("/data")
async def get_data():
    result = await fetch_data([2])
    return {"data": result}

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

Aget

B"https://example.com/api"

C"/fetch"

Dpost

Attempts:

3 left

💡 Hint

Common Mistakes

Using @app.post instead of @app.get for a GET route.

Passing a variable name instead of a URL string to fetch_data.

The route uses the @app.get decorator for GET requests and calls fetch_data with the URL string.

5fill in blank

hard

Fill all three blanks to create an async function that posts JSON data and returns the JSON response.

FastAPI

async def post_json(url: str, payload: dict):
    async with AsyncClient() as client:
        response = await client.[1](url, json=[2])
        return await response.[3]()

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

Apost

Bpayload

Cjson

Dtext

Attempts:

3 left

💡 Hint

Common Mistakes

Using get instead of post for sending data.

Passing payload as a positional argument instead of json keyword.

Using response.text() instead of response.json() to parse JSON.

The post method sends JSON data using the json parameter, and the response is parsed as JSON.