Some files

client.go

/*
https://golang.org/pkg/io/ioutil/
http://stackoverflow.com/questions/19253469/make-a-url-encoded-post-request-using-http-newrequest
https://github.com/gin-gonic/gin
http://stackoverflow.com/questions/3751429/reading-an-integer-from-standard-input-in-golang
*/
package main

import (
	"fmt"
	"io/ioutil"
	"net/http"
	"os"
)

func main() {
	var s string
	for true {
		fmt.Print("Enter a command> ")
		_, err := fmt.Scanf("%s", &s)

		if s == "quit" {
			fmt.Println("Quitting...")
			os.Exit(0)
		}
		var msg string
		if s == "api" {
			msg, err = SendApiRequest("test")
			fmt.Printf("Server Says: %s\r\n", msg)
		}

		// Error catch all
		if err != nil {
			fmt.Println(err.Error())
			fmt.Println("UH OH!")
			os.Exit(1)
		}
		fmt.Printf("You inputted: %s \r\n", s)
	}

}

func SendApiRequest(message string) (string, error) {
	apiUrl := "http://localhost:8080/ping"
	client := &http.Client{}
	r, _ := http.NewRequest("GET", apiUrl, nil)

	resp, err := client.Do(r)
	if err != nil {
		return "", err
	}

	fmt.Println(resp.Status)
	msg, err := ioutil.ReadAll(resp.Body)
	if err != nil {
		return "", err
	}

	return string(msg), nil
}

links.go

/*
https://golang.org/pkg/io/ioutil/
http://stackoverflow.com/questions/19253469/make-a-url-encoded-post-request-using-http-newrequest
https://github.com/gin-gonic/gin
http://stackoverflow.com/questions/3751429/reading-an-integer-from-standard-input-in-golang
*/

server.go

package main

import (
	"net/http"

	"github.com/gin-gonic/gin"
)

func main() {
	r := gin.Default()
	r.GET("/ping", func(c *gin.Context) {
		c.String(http.StatusOK, "pong")
	})

	// Listen and serve on 0.0.0.0:8080
	r.Run(":8080")
}