HTTP 403 Forbidden vs 429 Too Many Requests
Both HTTP 403 (Forbidden) and 429 (Too Many Requests) belong to the 4xx Client Error category. 403 indicates that the server understood the request but refuses to authorize it. Unlike 401, authentication will not help — the user simply does not have permission. Meanwhile, 429 means that the user has sent too many requests in a given time (rate limiting). The response should include a Retry-After header.
Description
The server understood the request but refuses to authorize it. Unlike 401, authentication will not help — the user simply does not have permission.
When You See It
When trying to access a resource you're authenticated for but don't have permission to access.
How to Fix
Check your user role/permissions. Contact the admin to request access.
Description
The user has sent too many requests in a given time (rate limiting). The response should include a Retry-After header.
When You See It
When hitting API rate limits or making too many requests too quickly.
How to Fix
Check the Retry-After header. Implement exponential backoff. Consider caching responses.
Key Differences
HTTP 403: The server understood the request but refuses to authorize it. Unlike 401, authentication will not help — the user simply does not have permission.
HTTP 429: The user has sent too many requests in a given time (rate limiting). The response should include a Retry-After header.
You encounter 403 when when trying to access a resource you're authenticated for but don't have permission to access.
You encounter 429 when when hitting API rate limits or making too many requests too quickly.
When to Use Which
For 403 (Forbidden): Check your user role/permissions. Contact the admin to request access. For 429 (Too Many Requests): Check the Retry-After header. Implement exponential backoff. Consider caching responses.