The workspace ID is a combination based on your organisation and workspace names. For example, for an "acme" organisation with a "weather" workspace, the final URL might look something like:
To determine the final URL, you can find out how to get a workspace id.
Alternatively access the Portal to determine the Swagger URL
Click the Library icon in the main menu.
Select the "Write" tab (this is the default).
Select the HTTP language option
You will see a Swagger URL specific to your workspace and the code panel on the right will show example code including a bearer token.