theo.go

package main

import (
	"encoding/json"
	"github.com/gorilla/mux"
	"io/ioutil"
	"log"
	"net/http"
	"strconv"
)

type Insult struct {
	ID   int    `json:"id"`
	Text string `json:"text"`
}

func getInsults() []Insult {
	raw, err := ioutil.ReadFile("./insults.json")
	if err != nil {
		panic(err)
	}
	var insults []Insult
	err = json.Unmarshal(raw, &insults)
	return insults
}

func main() {
	router := mux.NewRouter().StrictSlash(true)
	router.HandleFunc("/", Index)
	router.HandleFunc("/{id}", Index)

	log.Fatal(http.ListenAndServe(":8080", router))

}

func Index(w http.ResponseWriter, r *http.Request) {
	insults := getInsults()
	vars := mux.Vars(r)
	id := vars["id"]
	if id != "" {
		id_int, err := strconv.Atoi(id)
		if err != nil {
			panic(err)
		}
		json.NewEncoder(w).Encode(insults[id_int])
	}
}