The basic steps involved in defining a data source are generally the same for each type of integration you want to use. Each of the TD Integrations is described separately with details that pertain to it.
To create a new source with new authentication credentials:
Open TD Console.
Select the data source type that you want to add from the list at Integrations Hub > Catalog.
Optionally, use the filters to refine the catalog type.
Provide authentication credentials to access the data source.
Define the Fetch from Source information.
Optionally, preview your data.
Define the transfer to information including the TD database and table where you want the data from this source to be stored.
Define the schedule for how often you want data collected from the source.
You can see a list of all your configured and saved data connections from the TD Console, Authentications page.