A while back I created an API Key in Google API's.
I'm navigating around the API Key UI. I can see the API Key. But I can't see any way of revealing the client secret.
Is there a way to recover the secret? Or do I have to regenerate the key and secret, thus breaking any existing application currently using it?
Go to google developer console find the credential you are after. Then click the pencil icon on that row. It will open a new window where you can see your client secret.