Simple example of EEX webhook consumer in golang

main.go

package main

import (
	"encoding/json"
	"flag"
	"fmt"
	"log"
	"net/http"
	"time"
)

// Webhook entity.
type Webhook struct {
	SubscriptionID int             `json:"subscription_id"`
	Event          string          `json:"event"`
	Data           json.RawMessage `json:"data"`
}

// TransferWithFee contains informantion about the transfer.
type TransferWithFee struct {
	Hash        string    `json:"hash"`
	Sender      string    `json:"sender"`
	Recipient   string    `json:"recipient"`
	Amount      string    `json:"amount"`
	Fee         string    `json:"fee"`
	Timestamp   time.Time `json:"timestamp"`
	BlockNumber int       `json:"block_number"`
	Index       int       `json:"index"`
}

// Echo is simple example of webhook consumer.
func Echo(w http.ResponseWriter, r *http.Request) {
	var webhook Webhook
	if err := json.NewDecoder(r.Body).Decode(&webhook); err != nil {
		fmt.Println(err)
	}

	if webhook.Event != "TransferWithFee" {
		return
	}

	var transfer TransferWithFee
	if err := json.Unmarshal(webhook.Data, &transfer); err != nil {
		fmt.Println(err)
	}

	log.Printf("%s EEX received on %s address\n", transfer.Amount, transfer.Recipient)
}

func main() {
	var port string
	flag.StringVar(&port, "port", "8080", "Port of the server")
	flag.Parse()

	log.Printf("Listening on port %s...\n", port)
	http.ListenAndServe(":"+port, http.HandlerFunc(Echo))
}