REST APIs

Methods (Verbs)

• GET/POST/DELETE

• PUT: to replace a resource with another one

• PATCH: to modify a resource

• But sometimes the API designer may choose to let PUT, PATCH, and POST have the same behavior

• OPTIONS: returns all methods available in the end point

• HEAD: returns just the head of the response

Request

Headers include Authorization, Content-Type (e.g. application/json), Cache-Control (e.g. no-cache), etc.

Response

HTTP response status code	Categories	Example
1xx	Information	rarely used
2xx	Success	200 OK
3xx	Redirection	301 Moved permanently
4xx	Client error	404 Not found
5xx	Server error	503 Service unavailable