dtmapi 0.1.0

• Version 3 of the DTM API requires the use of a valid subscription key in order to make requests and retrieve data from it. A subscription key may be obtained through the DTM API Portal.

To manage this requirement in the dtmapi package, a new function, set_subscription_key(), is introduced. Calling it without arguments prompts the user to enter their subscription key, which will make the key available for a given R session through the environment variable DTM_SUBSCRIPTION_KEY.

The functions which make API calls (such as get_idp_admin1_data()) have been changed to make the subscription key that is assigned to the environment variable part of the API request, since a valid key is a requirement for the API.

• Introduces get_subscription_key(), which is mostly used to develop and test the dtmapi package, but it may technically be used by users to conveniently return the currently available subscription key. HOWEVER, beware that the string it returns is plain text and is more easily exposed, e.g. exposed to anyone visually observing your machine.