Rest API Server

Types of REST API calls

• GET, POST, PUT, PATCH, DELETE
• PUT vs PATCH :
  • PUT is method of modifying resources OR updates the entire resource. Similar to POST
  • PATCH PATCH does partial update OR only that field is updated without modifying the other fields.

Error Codes

• 1XX : Informational
• 2XX : Success (ex 200-OK, 201-Created, 202-Accepted)
• 3XX : Redirection
• 4XX : Client Error (ex 400 - BadRequest, 401-Unauthorized, 403-Forbidden)
• 5XX : Server Error (ex 500-Internal Server Error, 502-Bad Gateway)

Gorilla Mux

• mux.NewRouter()
• mux.NewRouter.HandleFunc()
• mux.Vars()

Json package

Json.NewEncoder().Encode() :

• used in GET method
• writes the data to (w) response.Writer

Json.NewDecoder().Decode() :

• used in POST method
• reads the data from (r) request