You should normally be able to get a key right-away for development.
I get an API-Key (but without OAuth approval) but when I use it, I have
then the error "Fehler 401: invalid_client The OAuth client was not
stands "https://www.example.com" ) ("java script origins") to insert an
url where allready a real webserver is running in the internet?
Sorry for this perhaps "stupid" looking questions. Although I'm an experienced developper for desktop-application development, the web development is totally new for me. But I could imagine that other people, which will have a look at tmsweb will perhaps also struggle here, so a clarification would perhaps help more people...
- Select "OAuth client ID" in the "Create Credentials" and not "API Key".
This will provide you with the "Client ID" and "Client Secret" that are required for authorization.
As redirect URI you can use a localhost URL (example: "http://localhost:8889/")
I forgot to mention that for web core applications you can use the full local url of the web application.
Please use the full url of the web application (like in the demo) with the same port number as you can see in the browser when the app is running as redirect uri in the Google console.
Good to hear it's working now!
We'll make the comment less confusing.