feat: add base for apple login

server/oauth/oauth.go

@@ -19,6 +19,7 @@ type OAuthProvider struct {
 	GithubConfig   *oauth2.Config
 	FacebookConfig *oauth2.Config
 	LinkedInConfig *oauth2.Config
+	AppleConfig    *oauth2.Config
 }
 
 // OIDCProviders is a struct that contains reference all the OpenID providers
@@ -112,5 +113,26 @@ func InitOAuth() error {
 		}
 	}
 
+	appleClientID, err := memorystore.Provider.GetStringStoreEnvVariable(constants.EnvKeyAppleClientID)
+	if err != nil {
+		appleClientID = ""
+	}
+	appleClientSecret, err := memorystore.Provider.GetStringStoreEnvVariable(constants.EnvKeyAppleClientSecret)
+	if err != nil {
+		appleClientSecret = ""
+	}
+	if appleClientID != "" && appleClientSecret != "" {
+		OAuthProviders.AppleConfig = &oauth2.Config{
+			ClientID:     appleClientID,
+			ClientSecret: appleClientID,
+			RedirectURL:  "/oauth_callback/apple",
+			Endpoint: oauth2.Endpoint{
+				AuthURL:  "https://appleid.apple.com/auth/authorize",
+				TokenURL: "https://appleid.apple.com/auth/token",
+			},
+			Scopes: []string{"email"},
+		}
+	}
+
 	return nil
 }