Angular - HTTP Client
Which of the following is the correct way to clone an HTTP request before adding an authentication token in an Angular interceptor?
Which of the following is the correct way to clone an HTTP request before adding an authentication token in an Angular interceptor?
easy📝 Syntax Q12 of 15
Step-by-Step Solution
Solution:
Step 1: Recall Angular HttpRequest immutability
HttpRequest objects are immutable, so you must clone them to modify headers.Step 2: Use the clone method with headers.set()
The correct syntax is to call clone() and set the new header inside it.Final Answer:
request.clone({ headers: request.headers.set('Authorization', 'Bearer ' + token) }) -> Option DQuick Check:
Clone request with headers.set() = A [OK]
Quick Trick: Always clone requests before changing headers [OK]
Common Mistakes:
MISTAKES- Trying to modify headers directly without cloning
- Using non-existent methods like modifyHeaders or updateHeaders
- Not using the clone method
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