In a GET request, the response will contain an entity corresponding to the requested resource. The actual response will depend on the request method used. 200 OK Standard response for successful HTTP requests. This class of status codes indicates the action requested by the client was received, understood, and accepted. 103 Early Hints (RFC 8297) Used to return some response headers before final HTTP message.
This prevents the client from timing out and assuming the request was lost. This code indicates that the server has received and is processing the request, but no response is available yet. 102 Processing ( WebDAV RFC 2518) A WebDAV request may contain many sub-requests involving file operations, requiring a long time to complete the request. 101 Switching Protocols The requester has asked the server to switch protocols and the server has agreed to do so. The response 417 Expectation Failed indicates that the request should be repeated without the Expect header as it indicates that the server does not support expectations (this is the case, for example, of HTTP/1.0 servers). If the client receives an error code such as 403 (Forbidden) or 405 (Method Not Allowed) then it should not send the request's body. To have a server check the request's headers, a client must send Expect: 100-continue as a header in its initial request and receive a 100 Continue status code in response before sending the body. Sending a large request body to a server after a request has been rejected for inappropriate headers would be inefficient. 100 Continue The server has received the request headers and the client should proceed to send the request body (in the case of a request for which a body needs to be sent for example, a POST request). As the HTTP/1.0 standard did not define any 1xx status codes, servers must not send a 1xx response to an HTTP/1.0 compliant client except under experimental conditions. The message consists only of the status line and optional header fields, and is terminated by an empty line. It alerts the client to wait for a final response. It is issued on a provisional basis while request processing continues.
5xx server error – the server failed to fulfil an apparently valid requestĪn informational response indicates that the request was received and understood.4xx client error – the request contains bad syntax or cannot be fulfilled.3xx redirection – further action needs to be taken in order to complete the request.2xx successful – the request was successfully received, understood, and accepted.1xx informational response – the request was received, continuing process.There are five classes defined by the standard: The first digit of the status code defines the class of response, while the last two digits do not have any classifying or categorization role. Īll HTTP response status codes are separated into five classes or categories. The Internet Assigned Numbers Authority (IANA) maintains the official registry of HTTP status codes. Unless otherwise stated, the status code is part of the HTTP/1.1 standard (RFC 7231). The message phrases shown are typical, but any human-readable alternative may be provided. The first digit of the status code specifies one of five standard classes of responses.
It includes codes from IETF Request for Comments (RFCs), other specifications, and some additional codes used in some common applications of the HTTP. Status codes are issued by a server in response to a client's request made to the server. This is a list of Hypertext Transfer Protocol (HTTP) response status codes.
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