On GitHub (for using the GitHub API) you create an OAuth App that will accept the callback URL scheme and act as your auth server, by handling callbacks and returning a token for access. That's what I did for my implementation. See if Ecobee has a similar setup, otherwise you might have to implement your own auth server.
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On GitHub (for using the GitHub API) you create an OAuth App that will accept the callback URL scheme and act as your auth server, by handling callbacks and returning a token for access. That's what I did for my implementation. See if Ecobee has a similar setup, otherwise you might have to implement your own auth server.