anchor.diff:  HOST: https://app.apiary.io/ngsi9
   TITLE: IoT Discovery GE Open API Specification
   DATE: 17/09/2016
  +VERSION: Release_5
  +APIARY_PROJECT: ngsi9
  +SPEC_URL: http://
  +GITHUB_SOURCE: https://github.com/UniSurreyIoT/fiware-iot-discovery-ngsi9/blob/master/doc/apiary/ngsi9-server.apib
   
   # FIWARE NGSI-9 API Core (v1)
   
  
positive.code: 
  ### Discover Context [GET]
  
  TODO
  
  + Response 200 (application/json)
  
  
negative.code: 
  ## Convenience operation - Availability Subscription Container [/contextAvailabilitySubscriptions/{subscriptionID}]
  
  Instances of this resource represent context availability subscriptions. They can be interacted with via PUT and DELETE. Creation of new availability subscriptions is done by interaction with the parent resource.
  
  ### Update Subscription [PUT]
  
  This operation updates a context availability subscription. The request and response body is updateContextAvailabilitySubscriptionRequest and updateContextAvailabilitySubscriptionResponse, respectively. The subscriptionId field inside the request message must equal the {subscriptionID} part of the access URI, otherwise an error shall be returned.
  
  You may create your own request using this action. It takes a JSON object containing a updateContextAvailabilitySubscriptionRequest message.
  
  + Request (application/json)
  
  