2xx 成功 (Success)

リクエストが正常に受信・理解・処理されたことを意味します。200 OK が代表例です。

200OK よく使うThe request succeeded. The response body depends on the method used.201Created よく使うThe request succeeded and a new resource was created as a result.202AcceptedThe request was accepted for processing, but processing has not completed.203Non-Authoritative InformationThe returned metadata was collected from a local or third-party copy, not the origin server.204No Content よく使うThe request succeeded but there is no content to return.205Reset ContentThe request succeeded and the client should reset the document view (e.g. clear a form).206Partial ContentThe server is delivering only part of the resource in response to a Range header.207Multi-StatusConveys status for multiple resources in one XML body.208Already ReportedAvoids repeatedly listing members of a binding already reported.226IM UsedThe response is the result of instance-manipulations (delta encoding) applied to the resource.