HTTP
Cheatsheet for the Hypertext Transfer Protocol.
Request Methods
Common and often used HTTP request methods you should know. Read more here.
GET
Send named resource from the server to the client.
HEAD
Send just the HTTP headers from the response for the named resource.
POST
Send client data into a server gateway application.
PUT
Store data from client into a named server resource.
DELETE
Delete the named resource from a server.
Status Codes
Common and often used HTTP status codes you should know. Read more here.
2xx
These status codes indicate that the request was successfully received, understood, and accepted.
200 OK
Standard response for successful HTTP requests.
201 Created
The request succeeded and a new resource was created. Often used after a successful POST request.
204 No Content
The request succeeded but no content was returned. Might be used after a successful DELETE request.
3xx
These status codes indicate a redirection and that further action needs to be taken by the user agent in order to fulfill the request.
301 Moved Permanently
The URL of the requested resource has been changed permanently and the new URL is provided in the response.
304 Not Modified
The response was cached and has not been modified.
4xx
These status codes indicate that there occured an error on the client side.
400 Bad Request
The server cannot process the received request from the user. For example if a form value is invalid.
401 Unauthorized
403 Forbidden
The client does not have access rights to the content.
404 Not Found
The requested resource does not exist on the server side.
5xx
These status codes indicate that there occured an error on the server side.
500 Internal Server Error
The server encountered an unexpected condition and cannot fulfill the request.
Further Resources
Read more here:
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