[Solved] A client receives this response:HTTP/1.1 429 Too Many Requests Retry-After: abcWhat is the issue with this response? | Rest API

Rest API - Error Handling

A client receives this response:

HTTP/1.1 429 Too Many Requests
Retry-After: abc

What is the issue with this response?

AResponse is missing Content-Type header

BRetry-After header value is invalid

CStatus code should be 401

DRetry-After header is optional and can be ignored

Step-by-Step Solution

Solution:

Step 1: Check Retry-After header format
Retry-After must be a number (seconds) or a valid HTTP date, 'abc' is invalid.
Step 2: Identify the problem
Invalid Retry-After value can confuse clients on when to retry.
Final Answer:
Retry-After header value is invalid -> Option B
Quick Check:
Retry-After must be numeric or date, 'abc' invalid [OK]

Quick Trick: Retry-After must be numeric or date string [OK]

Common Mistakes:

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A client receives this response: