Updated on 2023-05-24 GMT+08:00

Status Codes

Table 1 lists status codes.

Table 1 Status codes

Status Code

Name

Description

100

Continue

The client should continue with its request.

This interim response is used to inform the client that some requests have been received and have not been rejected by the server.

101

Switching Protocols

The protocol should be switched. The protocol can only be switched to a more advanced protocol.

For example, the current HTTP protocol is switched to a later version of HTTP.

200

OK

Request sent successfully.

201

Created

The request for creating resources has been fulfilled.

202

Accepted

The request has been accepted, but the processing has not been completed.

203

Non-Authoritative Information

The request has been fulfilled.

204

NoContent

The server has successfully processed the request, but is not returning any response body.

The status code is returned in response to an HTTP OPTIONS request.

205

Reset Content

The server has fulfilled the request, but the requester is required to reset the content.

206

Partial Content

The server has successfully processed a part of the GET request.

300

Multiple Choices

There are multiple options for the requested resource. For example, this code could be used to present a list of resource characteristics and addresses from which the client such as a browser may choose.

301

Moved Permanently

This and all future requests have been permanently moved to the given URI indicated in this response.

302

Found

The requested resource was temporarily moved.

303

See Other

Retrieve another URL using a GET or POST method.

304

Not Modified

The requested resource has not been modified. When the server returns this status code, it does not return any resources.

305

Use Proxy

The requested resource is available only through a proxy.

306

Unused

This HTTP status code is no longer used.

400

BadRequest

Invalid request.

The client should modify the request instead of re-initiating it.

401

Unauthorized

The authorization information provided by the client is incorrect or invalid.

402

Payment Required

Reserved for future use.

403

Forbidden

The request is rejected.

The server has received the request and understood it, but the server is refusing to respond to it. The client should not repeat the request without modifications.

404

NotFound

The requested resource cannot be found.

The client should modify the request instead of re-initiating it.

405

MethodNotAllowed

A request method is not supported for the requested resource.

The client should modify the request instead of re-initiating it.

406

Not Acceptable

The server cannot fulfill the request based on the content characteristics of the request.

407

Proxy Authentication Required

This code is similar to 401, but indicates that the client must first authenticate itself with the proxy.

408

Request Time-out

The server timed out when waiting for the request.

The client may re-initiate the request without any modification at any time.

409

Conflict

The request could not be processed due to a conflict.

The resource that the client attempts to create already exists, or the update request fails to be processed because of a conflict.

410

Gone

The requested resource cannot be found.

The requested resource has been deleted permanently.

411

Length Required

The server refused to process the request because the request does not specify the length of its content.

412

Precondition Failed

The server does not meet one of the preconditions that the requester puts on the request.

413

Request Entity Too Large

The server refuses to process a request because the request is too large. The server may close the connection to prevent the client from continuing the request. If the server cannot process the request temporarily, the response will contain a Retry-After field.

414

Request-URI Too Large

The URI provided was too long for the server to process.

415

Unsupported Media Type

The server does not support the media type in the request.

416

Requested range not satisfiable

The requested range is invalid.

417

Expectation Failed

The server fails to meet the requirements of the Expect request-header field.

422

UnprocessableEntity

The request is well-formed but unable to be processed due to semantic errors.

429

TooManyRequests

The client has sent more requests than its rate limit is allowed within a given amount of time, or the server has received more requests than it is able to process within a given amount of time. In this case, the client should re-initiate requests after the time specified in the Retry-After header of the response expires.

500

InternalServerError

The server is able to receive the request but it could not understand the request.

501

Not Implemented

The server does not support the requested function.

502

Bad Gateway

The server acting as a gateway or proxy receives an invalid response from a remote server.

503

ServiceUnavailable

The requested service is invalid.

The client should modify the request instead of re-initiating it.

504

ServerTimeout

The request cannot be fulfilled within a given time. This status code is returned to the client only when the duration specified by Timeout in the request timed out.

505

HTTP Version not supported

The server does not support the HTTP protocol version used in the request.