main.go

package main

import (
	"github.com/NaySoftware/go-fcm"
	"github.com/labstack/echo/v4"
	"github.com/labstack/echo/v4/middleware"
	"net/http"
)

const (
	serverKey = "YOUR-KEY"
	topic     = "/topics/someTopic"
)

func main() {
	data := map[string]string{
		"msg": "Hello World1",
		"sum": "Happy Day",
	}

	c := fcm.NewFcmClient(serverKey)
	c.NewFcmMsgTo(topic, data)

	status, err := c.Send()

	if err == nil {
		status.PrintResults()
	} else {
		fmt.Println(err)
	}

	// Echo instance
	e := echo.New()

	// Middleware
	e.Use(middleware.Logger())
	e.Use(middleware.Recover())

	// Routes
	e.GET("/", hello)

	// Start server
	e.Logger.Fatal(e.Start(":1323"))
}

// Handler
func hello(c echo.Context) error {
	return c.String(http.StatusOK, "Hello, World!")
}