Rest Architecture

Rest Architecture

1. REPRESENTATIONAL STATE TRANSFER

   • is an architectural style for providing standards between computer systems on the web
     • REST-compliant systems, often called RESTful systems, are characterized by how they are stateless and separate the concerns of client and server

2. SEPARATION OF CLIENT AND SERVER

   • the implementation of the client and the implementation of the server can be done independently without each knowing about the other
     • By using a REST interface, different clients hit the same REST endpoints, perform the same actions, and receive the same responses.
     • the separation allows each component the ability to evolve independently.

3. STATELESSNESS

   • meaning that the server does not need to know anything about what state the client is in and vice versa
   • REST systems interact through standard operations on resources

4. COMMUNICATION BETWEEN CLIENT AND SERVER

   • clients send requests to retrieve or modify resources, and servers send responses to these requests

5. MAKING REQUESTS

   • REST requires that a client make a request to the server in order to retrieve or modify data on the server
     • an HTTP verb
     • a header
     • a path to a resource
     • an optional message

6. HTTP VERBS

   • There are 4 basic HTTP verbs we use in requests to interact with resources in a REST system
     • GET
     • POST
     • PUT
     • DELETE

7. HEADERS AND ACCEPT PARAMETERS

   • the client sends the type of content that it is able to receive from the server

8. PATHS

   • Requests must contain a path to a resource that the operation should be performed on
   • In RESTful APIs, paths should be designed to help the client know what is going on.

9. SENDING RESPONSES

   • CONTENT TYPES
     • This content-type header field alerts the client to the type of data it is sending in the response body
   • RESPONSE CODES
     • Responses from the server contain status codes to alert the client to information about the success of the operation.