I must have done this 8 times but it has been a while since I lasted issued a curl command to get an access token for a new product. I am sure there used to be documentation about how to do this? I am not quite sure of the exact syntax - can someone help please?
$ curl https://api.particle.io/oauth/token -u clientID:clientSecret -d grant-type = ??? -d expires_in = 60000