API Design · Junior · Question 65 of 75

What does `Retry-After: 120` in a response mean?

1The request took 120 ms
2The cache is valid for 120 seconds
✓Correct answer: The client should wait 120 seconds before retrying

Explanation

It's used with 429 and 503. It can also be an HTTP date instead of seconds.

Further reading

MDN: Retry-After ↗

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