fcm.rb

# frozen_string_literal: true

require "fcm"
require "pry"

server_key = ENV.fetch("FCM_SERVER_KEY")
fmc_token = ENV.fetch("FCM_TOKEN")

client = FCM.new(server_key)
result = client.send_with_notification_key(
  fmc_token,
  data: {},
  notification: {
    title: "今日の天気予報",
    body: "今日は地域によっては夕方から雨になるそうです。",
    sound: :default,
  },
  content_available: true,
  mutable_content: true,
  priority: :high,
)

puts result

Gemfile

# frozen_string_literal: true

source "https://rubygems.org"

git_source(:github) {|repo_name| "https://github.com/#{repo_name}" }

gem "fcm"
gem "pry"