HTTP status codes are pretty confusing sometimes.
πΉ Informational (100β199)
πΉ Successful (200β299)
πΉ Redirects (300β399)
πΉ Client errors (400β499)
πΉ Server errors (500β599)
Let's talk about them in a bit more detail 𧡠ππ»
πΉ Informational (100β199)
πΉ Successful (200β299)
πΉ Redirects (300β399)
πΉ Client errors (400β499)
πΉ Server errors (500β599)
Let's talk about them in a bit more detail 𧡠ππ»
π informational response (1xx)
Informational responses indicate the acceptance and continuation of the requests.
Informational responses indicate the acceptance and continuation of the requests.
βͺοΈ 100 Continue
The server tells the client that everything is OK so far keeps sending requests.
The server tells the client that everything is OK so far keeps sending requests.
βͺοΈ 101 Switching Protocol
The client requests the server to switch the protocol. This response is sent for the `Upgrade` HTTP header.
The client requests the server to switch the protocol. This response is sent for the `Upgrade` HTTP header.
βͺοΈ 103 Early Hints
The server hints the client to preload the resources while the server preparing the data to be returned.
The server hints the client to preload the resources while the server preparing the data to be returned.
π Successful Responses (2xx)
As the term suggests, these status codes indicate that the request is successfully received, accepted, and resolved.
As the term suggests, these status codes indicate that the request is successfully received, accepted, and resolved.
βͺοΈ 200 Ok
This status code indicates the successful HTTP request. It's a standard successful response for GET, POST, PUT, HEAD, and TRACE.
This status code indicates the successful HTTP request. It's a standard successful response for GET, POST, PUT, HEAD, and TRACE.
βͺοΈ 201 Created
This status code is sent by the server to indicates that a new resource has been created. Generally used for the POST and PUT requests.
This status code is sent by the server to indicates that a new resource has been created. Generally used for the POST and PUT requests.
βͺοΈ 202 Accepted
Typically used for the async response. The server confirms to the client that the request has been accepted.
Typically used for the async response. The server confirms to the client that the request has been accepted.
βͺοΈ 203 Non-Authoritative Information
The server usually returns this to indicate that server is a proxy that received this data from its origin. The proxy returns the modified version of the origin's data.
The server usually returns this to indicate that server is a proxy that received this data from its origin. The proxy returns the modified version of the origin's data.
βͺοΈ 204 No Content
The server indicates that all is good but nothing to return.
The server indicates that all is good but nothing to return.
βͺοΈ 205 Reset Content
The server indicates the client to reset the document. Nothing to return as response data.
The server indicates the client to reset the document. Nothing to return as response data.
βͺοΈ 206 Partial Content
The server returns this code with the partial data that the client asked for with the `Range` HTTP header.
The server returns this code with the partial data that the client asked for with the `Range` HTTP header.
π Redirection messages (3xx)
The server usually returns a 3xx redirection status code to indicate that some additional action has to be done by the client to fulfill the request.
The server usually returns a 3xx redirection status code to indicate that some additional action has to be done by the client to fulfill the request.
βͺοΈ 300 Multiple Choice
The server returns this code when it has multiple options for response.
The server returns this code when it has multiple options for response.
βͺοΈ 301 Moved Permanently
Server sends the new URL with a 301 status code if the requested URL has been shifted to new URL.
Server sends the new URL with a 301 status code if the requested URL has been shifted to new URL.
βͺοΈ 302 Found
302 indicates that the requested URL has been changed temporarily. Therefore, can't fulfill the request for this moment
302 indicates that the requested URL has been changed temporarily. Therefore, can't fulfill the request for this moment
βͺοΈ 303 See Other
Server tells the client to get the desired resource at another URL with a GET request.
Server tells the client to get the desired resource at another URL with a GET request.
βͺοΈ 304 Not Modified
304 Indicates that the resources are the same since the last visit. In this case, the client can use the cached resources.
304 Indicates that the resources are the same since the last visit. In this case, the client can use the cached resources.
βͺοΈ 307 Temporary Redirect
The server tells the client that you will get the desired resource at another URL with the same request that the client has just made. URL shifting is temporary.
The server tells the client that you will get the desired resource at another URL with the same request that the client has just made. URL shifting is temporary.
βͺοΈ 308 Permanent Redirect
The server tells the client that you will get the desired resource at another URL with the same request that the client has just made. URL shifting is permanent.
The server tells the client that you will get the desired resource at another URL with the same request that the client has just made. URL shifting is permanent.
π Client Error Responses (4xx)
The server usually returns 4xx status codes if a client request causes some problem.
The server usually returns 4xx status codes if a client request causes some problem.
βͺοΈ 400 Bad Request
Incorrect syntax or invalid URLs are generally the reason for 400 Bad Request.
Incorrect syntax or invalid URLs are generally the reason for 400 Bad Request.
βͺοΈ 401 Unauthorized
The server returns 401 to indicate that the client should authenticate itself before making requests.
The server returns 401 to indicate that the client should authenticate itself before making requests.
βͺοΈ 403 Forbidden
The client is authenticated but doesn't have permission to access the resource.
The client is authenticated but doesn't have permission to access the resource.
βͺοΈ 404 Not Found
We see a 404 response most often. It means that the requested URL is not valid.
We see a 404 response most often. It means that the requested URL is not valid.
βͺοΈ 405 Method Not Allowed
The server returns the 405 status code when the request method is valid but not appropriate to get the desired resource.
The server returns the 405 status code when the request method is valid but not appropriate to get the desired resource.
βͺοΈ 406 Not Acceptable
In simple terms, the server returns a 406 Not Acceptable response when it does not find any suitable response according to the request.
In simple terms, the server returns a 406 Not Acceptable response when it does not find any suitable response according to the request.
βͺοΈ 407 Proxy Authentication Required
The server returns this code when the client must authenticate itself with the proxy.
The server returns this code when the client must authenticate itself with the proxy.
βͺοΈ 408 Request Timeout
The server sends this response without the request, indicating that the server would like to suspend the connection.
The server sends this response without the request, indicating that the server would like to suspend the connection.
βͺοΈ 409 Conflict
The server usually returns this when there is a conflict in the current state of resources.
The server usually returns this when there is a conflict in the current state of resources.
βͺοΈ 410 Gone
The resource has been deleted permanently from the server with any redirect URL.
The resource has been deleted permanently from the server with any redirect URL.
βͺοΈ 411 Lenght Required
The server indicates that the client must send `Content-Length` to get the resource.
The server indicates that the client must send `Content-Length` to get the resource.
βͺοΈ 412 Precondition Failed
The server doesn't meet the precondition that the client mentioned in the request headers.
The server doesn't meet the precondition that the client mentioned in the request headers.
βͺοΈ 413 Payload Too Large
Request is too large that the server can't handle. In this case, the server might close the connection.
Request is too large that the server can't handle. In this case, the server might close the connection.
βͺοΈ 414 URI Too Large
The server returned a 414 code when the URI provided was too long for the server to process.
The server returned a 414 code when the URI provided was too long for the server to process.
βͺοΈ 415 Unsupported Media Type
The server does not support the media type mentioned in the request. For example, the client wants to upload an image as .png, but the server supports the .jpeg media type.
The server does not support the media type mentioned in the request. For example, the client wants to upload an image as .png, but the server supports the .jpeg media type.
βͺοΈ 416 Range Not Satisfiable
The server returns a 416 code when the range mentioned in the `Range` HTTP request header is unsatisfactory. For example, asking for a portion of data that doesn't exist.
The server returns a 416 code when the range mentioned in the `Range` HTTP request header is unsatisfactory. For example, asking for a portion of data that doesn't exist.
βͺοΈ 417 Expectation Failed
The server is not able to provide the relevant data mentioned in the `Expect` HTTP header.
The server is not able to provide the relevant data mentioned in the `Expect` HTTP header.
βͺοΈ 422 Unprocessable Entity
The server returns a 422 status when there are semantic errors in the request.
The server returns a 422 status when there are semantic errors in the request.
βͺοΈ 426 Upgrade Required
The server indicates that the client should use another protocol to fulfill the request. In response, server sends the required protocol in the `Upgrade` header.
The server indicates that the client should use another protocol to fulfill the request. In response, server sends the required protocol in the `Upgrade` header.
βͺοΈ 428 Precondition Required
The server indicates that the request should be conditional to reduce the chances of conflicts.
The server indicates that the request should be conditional to reduce the chances of conflicts.
βͺοΈ 429 Too Many Requests
The client has sent too many requests in the given time frame. For example, the server only handles 100 requests per second.
The client has sent too many requests in the given time frame. For example, the server only handles 100 requests per second.
βͺοΈ 431 Request Header Fields Too Large
Server indicates that the request header is too larger which can't be handled by the server. In this case, the client can reinitiate the request after reducing the sizer of the request header.
Server indicates that the request header is too larger which can't be handled by the server. In this case, the client can reinitiate the request after reducing the sizer of the request header.
βͺοΈ 451 Unavailable For Legal Reasons
The server can't provide the requested resource due to legal reasons.
The server can't provide the requested resource due to legal reasons.
π Server error responses (5xx)
The 5xx status codes indicate that everything is excellent with the request, but an error occurred on the server-side.
The 5xx status codes indicate that everything is excellent with the request, but an error occurred on the server-side.
βͺοΈ 500 Internal Server Error
An unexpected situation occurs which server can't handle at this moment.
An unexpected situation occurs which server can't handle at this moment.
βͺοΈ 501 Not Implemented
The server returns 501 when the request is not handled by the server. For example, the client initiates the DELETE request but the server supports only GET and HEAD.
The server returns 501 when the request is not handled by the server. For example, the client initiates the DELETE request but the server supports only GET and HEAD.
βͺοΈ 502 Bad Gateway
502 status code indicates when the server got the invalid response while acting as the gateway.
502 status code indicates when the server got the invalid response while acting as the gateway.
βͺοΈ 503 Service Unavailable
Usually, when the server is down for maintenance, the server returns 503 indicating server is not ready to handle the request.
Usually, when the server is down for maintenance, the server returns 503 indicating server is not ready to handle the request.
βͺοΈ 504 Gateway Timeout
Server cannot get the response from the origin while acting as a gateway.
Server cannot get the response from the origin while acting as a gateway.
βͺοΈ 505 HTTP Version Not Supported
The server does not support the HTTP protocol version used in the request.
The server does not support the HTTP protocol version used in the request.
βͺοΈ 506 Variant Also Negotiates
The server returns the 506 Variant Also Negotiates code when there is an internal configuration error.
The server returns the 506 Variant Also Negotiates code when there is an internal configuration error.
βͺοΈ 507 Insufficient Storage
The server is unable to store the representation needed to complete the request.
The server is unable to store the representation needed to complete the request.
βͺοΈ 508 Loop Detected
The server detected an infinite loop while processing the resource.
The server detected an infinite loop while processing the resource.
βͺοΈ 510 Not Extended
The server requires some additional extensions in the request to fulfill it.
The server requires some additional extensions in the request to fulfill it.
βͺοΈ 511 Network Authentication Required
The client needs to authenticate to gain network access.
The client needs to authenticate to gain network access.
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