mmg/handlers.go

package main

import (
	"encoding/json"
	"fmt"
	"log"
	"math/rand"
	"net/http"
)

func attempt(w http.ResponseWriter, req *http.Request) {
	operation := "+"
	if r := rand.Intn(2); r == 0 {
		operation = "-"
	}

	r := map[string]string{
		"operation": operation,
	}

	b, err := json.Marshal(r)
	if err != nil {
		log.Fatal("issue with json marshalling")
	}
    j := string(b)
	fmt.Println(j)
	fmt.Fprintf(w, j)
}

func problem(w http.ResponseWriter, req *http.Request) {
	fmt.Fprintf(w, "hello world")
}