For WirelessTag temperature sensors: Force new temp reading on device and then obtain those temp values

WirelessTagTempRead.rb

# First follow instructions here: https://wirelesstag.net/eth/oauth2_apps.html to obtain Oauth2 credentials/keys
# You should now have an access_token (and a refresh_token). Use the access_token value in var: wtag_api_key below
# The code below pulls temp from the first tag in the tag list. If you have more than one sensor, you may need to adjust this

require 'net/http'
require 'json'
require 'uri'

def request_immediate_postback(wtag_api_key, tag_id)
  url = "https://wirelesstag.net/ethClient.asmx/RequestImmediatePostback"
  uri = URI(url)
  headers = {
    "Content-Type" => "application/json; charset=utf-8",
    "Authorization" => "Bearer #{wtag_api_key}"
  }
  data = {
    "id" => tag_id
  }
  http = Net::HTTP.new(uri.host, uri.port)
  http.use_ssl = true
  request = Net::HTTP::Post.new(uri, headers)
  request.body = data.to_json
  response = http.request(request)

  if response.code != "200"
    raise "Error: #{response.code} #{response.body}"
  end
end

def get_updated_temperature(wtag_api_key, tag_id)
  url = "https://wirelesstag.net/ethClient.asmx/GetTagList"
  uri = URI(url)
  headers = {
    "Content-Type" => "application/json; charset=utf-8",
    "Authorization" => "Bearer #{wtag_api_key}"
  }
  http = Net::HTTP.new(uri.host, uri.port)
  http.use_ssl = true
  request = Net::HTTP::Post.new(uri, headers)
  response = http.request(request)

  if response.code == "200"
    tag_list = JSON.parse(response.body)
    temperature = tag_list['d'][0]['temperature']
    ambient_temperature = tag_list['d'][0]['cap']
    {temperature: temperature, ambient_temperature: ambient_temperature}
  else
    raise "Error: #{response.code} #{response.body}"
  end
end

def get_immediate_temperature(wtag_api_key, tag_id)
  request_immediate_postback(wtag_api_key, tag_id)
  sleep(5) # Wait for the postback to be processed
  retval = get_updated_temperature(wtag_api_key, tag_id)
  return retval
end

def get_tag_names_and_uuids(wtag_api_key)
  url = "https://wirelesstag.net/ethClient.asmx/GetTagList"
  uri = URI(url)
  headers = {
    "Content-Type" => "application/json; charset=utf-8",
    "Authorization" => "Bearer #{wtag_api_key}"
  }
  http = Net::HTTP.new(uri.host, uri.port)
  http.use_ssl = true
  request = Net::HTTP::Post.new(uri, headers)
  response = http.request(request)

  if response.code == "200"
    tag_list = JSON.parse(response.body)
    puts response.body
    puts tag_list
    return ""
  else
    raise "Error: #{response.code} #{response.body}"
  end
end

wtag_api_key = "[your oauth access_token here]"
tag_id = "0" # hardcoded value for my (only) sensor - adjust as needed

retval = get_immediate_temperature(wtag_api_key, tag_id)
temperature = retval[:temperature]
ambient_temperature = retval[:ambient_temperature]
puts "Current temperature: #{temperature}"
puts "Current ambient temperature: #{ambient_temperature}"