{"$id"=>"1", "Message"=>"Authorization has been denied for this request."}

# Service object
class Abc
  include HTTParty
  base_uri 'api.thirdparty.com'

  def questions
    result = self.class.post("/end_point/of/third/party/", body: {key: value,...})
    result # error in result : {"$id"=>"1", "Message"=>"Authorization has been denied for this request."}
  end
end

# request header
{
content-type:"application/json"
cache-control:"no-cache"
postman-token:"94a40ead-1e76-41ab-9563-172f656f213a"
user-agent:"PostmanRuntime/7.1.5"
accept:"*/*"
host:"happiness.com"
accept-encoding:"gzip, deflate"
content-length:137
}

# Request body
{
password:"1234567890"
password_confirmation:"1234567890"
approve_policy:true
telephone:"xx832xxxxxxx"
step:4
}

# Response header
{
content-type:"application/json; charset=utf-8"
transfer-encoding:"chunked"
connection:"keep-alive"
status:"200 OK"
cache-control:"max-age=0, private, must-revalidate"
strict-transport-security:"max-age=15552000; includeSubDomains"
x-request-id:"e11c82ed-e828-4c5e-b8b9-ae477be18a81"
etag:"W/"1eca77bcc78b5bada08cb47c78aa04e1""
x-runtime:"0.789290"
date:"Fri, 01 Jun 2018 10:32:47 GMT"
x-powered-by:"Phusion Passenger 5.2.3"
server:"nginx/1.12.2 + Phusion Passenger 5.2.3"
}

# Response body (customized)
{
status:"0"
status_code:422
message:"Authorization has been denied for this request."
}

# app/lib/connection.rb
class Connection
  include HTTParty
  base_uri "https://anotherserver.com"

  def register
     response = HTTParty.post('/api/tenantAccounts/', body: create_request_body, headers:  auth_header)
     response # <= {"$id"=>"1", "Message"=>"Authorization has been denied for this request."}
  end

  def request_body
    {
      "accountPassword": "123456",
      "tenantAccountCode": "prod-dr104",
      "accountUserName": "jignesh-khokhani-104",
      "accountLockStatus": 0,
      "loginFailNum": 0,
      "birthDate": "Sun, 01 Jun 1958 19:25:16 JST +09:00",
      "restingHr": 80,
      "maxHr": 160,
      "normalHr": 100,
      "upperLimitHr": 180,
      "lowerLimitHr": 60,
      "durationHr": 60,
      "duration180Hs": 60,
      "duration220Hs": 60,
      "thresholdDurationHs": 60,
      "thresholdDurationWs": 60,
      "imageFlg": "0",
      "createAccountId": "10003608"
    }
  end

  private

  def auth_header
    {
      'Authorization': "bearer #{auth_details.access_token}"
    }
  end

  def auth_details
   # 3rd party server login and get token
   HTTParty.post('/login', {
    body: {
      username: 'username',
      password: 'secret_password,
      scope:  'scope',
      grant_type: 'password'
    }
   })
  end
end