| 2XX responses: |
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The 2xx (Successful) class of status code indicates that the client's request was successfully received, understood, and accepted |
| 4XX Errors: |
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The 4xx (Client Error) class of status code indicates that the client seems to have erred |
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400 |
Bad Request |
The 400 (Bad Request) status code indicates that the server cannot or will not process the request due to something that is perceived to be a client error |
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401 |
Unauthorized |
The 401 Unauthorized Error is an HTTP response status code indicating that the request sent by the client could not be authenticated |
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403 |
Forbidden |
The 403 (Forbidden) status code indicates that the server understood the request but refuses to authorize it |
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404 |
Page or Resource Not Found |
The 404 (Not Found) status code indicates that the origin server did not find a current representation for the target resource |
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405 |
Method Not Allowed |
The 405 (Method Not Allowed) status code indicates that the method received is not supported by the target resource |
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429 |
Too Many Requests |
The HTTP 429 status code indicates the user has sent too many requests in a given amount of time ("rate limiting") |
| 5XX Errors: |
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The 5xx (Server Error) class of status code indicates that the server is aware that it has erred or is incapable of performing the requested method |
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500 |
Internal Server Error |
The 500 (Internal Server Error) status code indicates that the server encountered an unexpected condition that prevented it from fulfilling the request |
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502 |
Bad Gateway |
The 502 (Bad Gateway) status code indicates that the server, while acting as a gateway or proxy, received an invalid response from an inbound server it accessed |
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503 |
Service Unavailable |
The 503 (Service Unavailable) status code indicates that the server is currently unable to handle the request |
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504 |
Gateway Timeout |
The 504 (Gateway Timeout) status code indicates that the server, while acting as a gateway or proxy, did not receive a timely response from an upstream server |
