Create a webserver function with arguments that are parsed to json format

package main

import (
    "fmt"
    "net/http"
    "encoding/json"
)

type Payload struct {
    Stuff Data
}

type Data struct {
    Fruit   Fruits
    Veggies Vegetables
}

type Fruits map[string]int
type Vegetables map[string]int

func ServeHTTP(w http.ResponseWriter, r *http.Request) {
    w.Header().Set("Content-Type", "application/json")
    p := Payload {Data: Data{Fruit: Fruits{"Apple": 5, "Orange": 6}, Veggies: Vegetables{"Carrats": 7, "Peppers": 8}}}
    enc := json.NewEncoder(w)
    enc.Encode(p)
}

func main() {
    fmt.Println("Starting HTTP server...")
    http.HandleFunc("/", ServeHTTP)
    http.ListenAndServe(":8080", nil)
}