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Create a oauth APP
Create
First, Login your dashboard account Go to dashboard.
Then, create a oauth key 
You can copy the client_id. Your login url is https://account.ruanhor.dpdns.org/oauth2?client_id=$client_id&redirect_uri=$redirect_uri&response_type=code
- replace $client_id to your client_id
- replace $redirect_uri to your callback url (remember to encode the URL (call decodeURIComponent))
Add redefine direction for this url.