Consuming the RESTful API

The RESTful API is the most common way applications and servers provide access to their services. This recipe will show you how it can be consumed with the help of a HTTP client from the standard library.

How to do it...

1. Open the console and create the folder chapter07/recipe09.
2. Navigate to the directory.
3. Create the rest.go file with the following content:

        package main

        import (
          "encoding/json"
          "fmt"
          "io"
          "io/ioutil"
          "net/http"
          "strconv"
          "strings"
        )

        const addr = "localhost:7070"

        type City struct {
          ID string
          Name string `json:"name"`
          Location string `json:"location"`
        }

        func (c City) toJson() string {
          return fmt.Sprintf(`{"name":"%s","location":"%s"}`,
                             c.Name, c.Location)
        }

        func main() {
          s := createServer(addr)
          go s.ListenAndServe()

   ...