Building RESTful Web services with Go

Program explanation

The preceding program is trying to implement a REST service using httprouter. We are defining two routes here:

• /api/v1/go-version
• /api/v1/show-file/:name

The :name here is the path parameter. It indicates the API that shows the file named xyz. The basic Go router cannot handle these parameters, by using httprouter, we can also match the REST methods. In the program, we matched GET requests.

In a step-by-step process, the preceding program:

• Imported the httprouter and other necessary Go packages
• Created a new router using the New() method of httprouter
• The router has methods like GET, POST, DELETE, and so on
• The GET method takes two arguments, URL path expression and Handler function
• This router can be passed to the ...