Ruby thingsnetwork example mqtt script

gistfile1.txt

require 'mqtt'
require 'base64'
require 'json'

app_id = APP_ID
access_key = ACCESS_KEY
dev_id = DEV_ID
region = eu

client = MQTT::Client.connect("mqtt://#{app_id}:#{access_key}@#{region}.thethings.network:1883")

topic = "#{app_id}/devices/#{dev_id}/up"

topic_down = "#{app_id}/devices/#{dev_id}/down"
message = {
    port: 1,
    payload_raw: Base64.encode64('hello world').strip
}
# Send Message
client.publish(topic_down, message.to_json)

# Subscribe example
client.get(topic) do |topic,message|
  puts "#{topic}: #{message}"
  # Parse a string containing a binary packet into an object
  payload = JSON.parse(message)
  data = payload['payload_raw']
  #puts data.unpack data
  puts Base64.decode64(data)
end