fixed oauth2.0

config/initializers/doorkeeper.rb

@@ -11,7 +11,7 @@ Doorkeeper.configure do
     # raise "Please configure doorkeeper resource_owner_authenticator block located in #{__FILE__}"
     # Put your resource owner authentication logic here.
     # Example implementation:
-      User.find_by(id: session[:www_user_id]) || redirect_to(new_user_session_url)
+    User.find_by(login: params[:auth]) || redirect_to("/oauth2?call_url=#{request.fullpath}")
   end
 
   resource_owner_from_credentials do |routes|
@@ -243,8 +243,8 @@ Doorkeeper.configure do
   # For more information go to
   # https://doorkeeper.gitbook.io/guides/ruby-on-rails/scopes
   #
-  # default_scopes  :public
-  # optional_scopes :write, :update
+  default_scopes  :public
+  optional_scopes :write, :update
 
   # Allows to restrict only certain scopes for grant_type.
   # By default, all the scopes will be available for all the grant types.
@@ -514,19 +514,19 @@ Doorkeeper::JWT.configure do
   # about the user. Defaults to a randomly generated token in a hash:
   #     { token: "RANDOM-TOKEN" }
   token_payload do |opts|
-    user = User.find(opts[:resource_owner_id])
+    user = User.find_by(id: opts[:resource_owner_id])
 
     {
-      iss: 'My App',
+      iss: 'Osredm',
       iat: Time.current.utc.to_i,
 
       # @see JWT reserved claims - https://tools.ietf.org/html/draft-jones-json-web-token-07#page-7
       jti: SecureRandom.uuid,
 
       user: {
-        id: user.id,
-        login: user.login,
-        mail: user.mail
+        id: user&.id,
+        login: user&.login,
+        mail: user&.mail
       }
     }
   end