Health check endpoints in FastAPI - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to create a basic health check endpoint in FastAPI.

FastAPI

from fastapi import FastAPI

app = FastAPI()

@app.get("/health")
async def health_check():
    return {"status": "[1]"}

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

Aok

Bhealthy

Crunning

Dup

Attempts:

3 left

💡 Hint

Common Mistakes

Using a status message that is not a string

Forgetting to return a dictionary

Using a wrong HTTP method

The health check endpoint returns a simple JSON with status 'ok' to indicate the service is running.

2fill in blank

medium

Complete the code to add a health check endpoint that returns HTTP status 200 with JSON response.

FastAPI

from fastapi import FastAPI
from fastapi.responses import Response

app = FastAPI()

@app.get("/health")
async def health_check():
    return Response(content='{"status": "ok"}', media_type="[1]")

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

Atext/html

Btext/plain

Capplication/xml

Dapplication/json

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'text/plain' which is for plain text

Using 'application/xml' which is for XML data

Using 'text/html' which is for HTML pages

The media type for JSON responses is 'application/json'. This tells the client to expect JSON data.

3fill in blank

hard

Fix the error in the health check endpoint that should return a JSON response with status code 200.

FastAPI

from fastapi import FastAPI
from fastapi.responses import JSONResponse

app = FastAPI()

@app.get("/health")
def health_check():
    return [1]({"status": "ok"}, status_code=200)

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

AResponse

BJSONResponse

CPlainTextResponse

DHTMLResponse

Attempts:

3 left

💡 Hint

Common Mistakes

Using Response which requires manual JSON string

Using PlainTextResponse which returns plain text

Using HTMLResponse which returns HTML

To return JSON with a specific status code, use FastAPI's JSONResponse class.

4fill in blank

hard

Fill both blanks to create a health check endpoint that returns a JSON with status 'ok' and HTTP status 200.

FastAPI

from fastapi import FastAPI
from fastapi.responses import [1]

app = FastAPI()

@app.get("/health")
async def health_check():
    return [2]({"status": "ok"}, status_code=200)

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

AJSONResponse

BResponse

CPlainTextResponse

DHTMLResponse

Attempts:

3 left

💡 Hint

Common Mistakes

Importing Response but returning JSONResponse

Using PlainTextResponse which does not return JSON

Mismatching import and return classes

Import JSONResponse and use it to return JSON data with status code 200.

5fill in blank

hard

Fill all three blanks to create a health check endpoint that returns a JSON with a dynamic status message and HTTP status 200.

FastAPI

from fastapi import FastAPI
from fastapi.responses import [1]

app = FastAPI()

@app.get("/health/{status_msg}")
async def health_check(status_msg: str):
    return [2]({"status": [3], status_code=200)

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

AJSONResponse

BResponse

Cstatus_msg

D"status_msg"

Attempts:

3 left

💡 Hint

Common Mistakes

Putting quotes around status_msg which makes it a string literal

Using Response instead of JSONResponse

Not importing JSONResponse

Import and use JSONResponse to return JSON. Use the variable status_msg without quotes to insert its value dynamically.