I check it every time I forget it, so I summarized it for myself.
100 ~ Means the continuation of requests from the browser. 200 ~ Means that the browser request was successful on the server. 300 ~ Means redirect. 400 ~ It means that there is an error on the client side and the request failed. 500 ~ It means that there is an error on the server side and the request failed.
Only the ones I use often Difference between put and patch put method replaces rather than updates The patch method updates / modifies / modifies existing resources For more information https://qiita.com/murata0705/items/52538c08778c39a91ec2
| Code number | symbol | Remarks | meaning |
|---|---|---|---|
| 200 | :ok | Frequently returned when getting | The web page or resource is working as expected. |
| 201 | :created | create,Returns this when put etc. | Accepted the request and created a new resource. |
| 202 | :accepted | The situation where the server is accepting and processing browser requests | |
| 204 | :no_content | delete,Returns this when patch etc. | When the request was processed successfully, but there is no content to return |
| 304 | :not_modified | When you want to use the cache | Means that the requested resource has not changed since it was last accessed. |
| 400 | :bad_request | The shape of the request body is strange, validation error, etc. | In case of incorrect syntax, invalid request message framing, or incorrect request routing |
| 401 | :unauthorized | I don't have permission | If you need an Authorization header. |
| 404 | :not_found | The resource represented by the URL does not exist. | |
| 409 | :conflict | When trying to create something that has already been created. | The request cannot be completed because it conflicts with the current resource. |
| 422 | :unprocessable_entity | When you want to get a more detailed validation error. | It means that a normal request came but could not be processed. |
https://qiita.com/terufumi1122/items/997e24dde87f807e3944
https://qiita.com/uenosy/items/ba9dbc70781bddc4a491
https://qiita.com/nesheep5/items/6da796f6ac628c430c36