How to parse json in Go

Issue #199

Unmarshal using encoding/json

• property in struct needs to be first letter capitalized

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

type MyJsonObject struct {
	Id string `json:"id"`
	Name string `json:"name"`
}

type MyJsonArray struct {
	Data []MyJsonObject `json:"data"`
}

func FetchJson() {
	url := "https://myapp.com/json"
	client := http.Client{
		Timeout: time.Second * 10
	}

	request, requestError := http.NewRequest(http.MethodGet, url, nil)
	request.Header.Set("User-Agent", "myapp")
	response, responseError := client.Do(request)
	body, readError := ioutil.ReadAll(response.Body)
 
	fmt.Println(requestError, responseError, readError)
	
	myJsonArray := MyJsonArray{}
	marshalError := json.Unmarshal(body, &myJsonArray)
	fmt.Println(jsonResponse, marshalError)	
}

Map

And how to map to another struct
https://gobyexample.com/collection-functions

func Map(vs []JsonStop, f func(JsonStop) *api.Stop) []*api.Stop {
    vsm := make([]*api.Stop, len(vs))
    for i, v := range vs {
        vsm[i] = f(v)
    }
    return vsm
}

stops := Map(jsonResponse.Data, func(jsonStop JsonStop) *api.Stop {
		stop := api.Stop{
			Id: jsonStop.Id, 
			Name: jsonStop.Name,
			Address: jsonStop.Address,
			Lat: jsonStop.Lat,
			Long: jsonStop.Long}

		return &stop
	})

json to protobuf

• Use https://godoc.org/github.com/golang/protobuf/jsonpb