Introduction of RESTful Web Service

Rest Web Service

It Stands for Representational State Transfer

who coined Rest ? 
Roy Fielding, who is developed HTTP as well
Rest is make Best use of HTTP:

Key Abstraction - Resources:

1. A Resource has an URI (Uniform Resource Identifier)
  •     /user/Khan/todos/1
  •     /user/Khan/todos
  •     /user/Khan
Note: It shows we  assign a URI to Each Resource
          Rest does not worry about how you are representing your resource
          is it JSON,XML or HTML
2. A Resource can have different representations
  •     JSON
  •     XML
  •     HTML
Methods for Resources:
  1. 1. Create Resource   : POST
  2. 2. Update Resource  : PUT
  3. 3. Get Resource        : GET
  4. 4. Delete Resource   : DELETE
REST

  • Data Exchange Format
    • No Restriction.(But JSON format is popular in restful)
  • Transport
    • Only HTTP (Restricted)
  • Service Definition
    • No Standard (but Swagger is popular one)
Difference Between Rest And SOAP





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