Flask - Middleware and Extensions
Which of the following is the correct way to register a
before_request function in Flask?Which of the following is the correct way to register a before_request function in Flask?
easy📝 Syntax Q12 of 15
Step-by-Step Solution
Solution:
Step 1: Recall Flask decorator syntax
Flask uses decorators like@app.before_requestabove a function to register it as a before_request handler.Step 2: Analyze each option
@app.before_request\ndef my_function(): pass uses the correct decorator syntax. app.before_request(my_function()) calls the function instead of decorating. Options C and D assign incorrectly.Final Answer:
@app.before_request\ndef my_function(): pass -> Option AQuick Check:
Use @app.before_request decorator = A [OK]
Quick Trick: Use @app.before_request decorator above the function [OK]
Common Mistakes:
MISTAKES- Calling the function instead of decorating
- Assigning function instead of decorating
- Missing the @ symbol for decorator
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