GoEthemineTelegramBot/code/unmasrshal_url.go

package main

import (
	"encoding/json"
	"fmt"
	"io"
	"log"
	"net/http"
	"strings"
)

func UnmasrshalFromUrl(url string, v interface{}) error {
	// Usage:
	// <url> - string with web url to raw json data
	// <JsonStruct> - struct type that describes json data at <url>
	//
	//    -- code --
	//    var parseTo <JsonStruct>
	//    err := UnmasrshalFromUrl(<url>, &parseTo)
	//    -- code --

	webClient := &http.Client{}
	// Get response from url
	webResp, err := webClient.Get(url)
	if err != nil {
		log.Println(err)
		return err
	}
	// Close response body
	defer webResp.Body.Close()
	// Convert from Reader to []byte
	jsonData, err := io.ReadAll(webResp.Body)
	if err != nil {
		log.Println(err)
		return err
	}
	// Convert []byte to string
	jsonDataStr := fmt.Sprintf("%s", jsonData)
	jsonDataStr = strings.ReplaceAll(jsonDataStr, "null", "0")
	// Covenrt string ot []byte
	jsonData = []byte(jsonDataStr)

	// LogDebug.Println(v)
	return json.Unmarshal([]byte(jsonData), &v)
}