golang Binance API example

main.go

package main

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

// exchangeInfoData is the primary json object 
type exchangeInfoData struct {
	Symbols         []symbolInfoData `json:"symbols"`
}


// symbolInfoData is a contained object within the exchangeInfoData  json object
// there are many other possible objects within this json payload however only this one will be parsed/Unmarshal into a go struct
type symbolInfoData struct {
	Symbol                 string   `json:"Symbol"`
}

const (
	restUrl           = "https://api.binance.com"
	exchangeInfo      = "/api/v1/exchangeInfo"
)

func main() {
	resp, err := http.Get(restUrl + exchangeInfo)
	if err != nil {
		log.Panic("Error: ", err.Error())
	}

	// ReadAll returns a []byte 
	b, err := ioutil.ReadAll(resp.Body)
	if err != nil {
		log.Panicf("Error: %v", err.Error())
	}

	// output raw resp.Body
	log.Println("b: ",string(b))

	// init a nil struct 
	// var data = exchangeInfoData // Can be done this way too.   
	data := exchangeInfoData{}

	// Unmarshal/Parse the raw json into your struct data type
	jsonErr := json.Unmarshal(b, &data)
	if jsonErr != nil {
		log.Panicf("Error: %v", jsonErr)
	}

	// Loop over the data and output all the good stuff. 
	for _, s := range data.Symbols {
		log.Println("symbol: ", s.Symbol)
	}
}