Create endpoint for google oauth, generate JWT token, save to DB by email

src/main/java/com/faf223/expensetrackerfaf/controller/auth/JwtAuthenticationSuccessHandler.java

@@ -0,0 +1,19 @@
+package com.faf223.expensetrackerfaf.controller.auth;
+import jakarta.servlet.ServletException;
+import jakarta.servlet.http.HttpServletRequest;
+import jakarta.servlet.http.HttpServletResponse;
+import org.springframework.security.core.Authentication;
+import org.springframework.security.web.authentication.AuthenticationSuccessHandler;
+import org.springframework.security.web.authentication.SimpleUrlAuthenticationSuccessHandler;
+
+import java.io.IOException;
+
+public class JwtAuthenticationSuccessHandler extends SimpleUrlAuthenticationSuccessHandler implements AuthenticationSuccessHandler {
+
+    @Override
+    public void onAuthenticationSuccess(HttpServletRequest request, HttpServletResponse response, Authentication authentication) throws IOException, ServletException {
+
+        super.onAuthenticationSuccess(request, response, authentication);
+    }
+}
+

src/main/java/com/faf223/expensetrackerfaf/controller/auth/OAuth2SuccessController.java

@@ -0,0 +1,24 @@
+package com.faf223.expensetrackerfaf.controller.auth;
+
+import com.faf223.expensetrackerfaf.service.AuthenticationService;
+import lombok.RequiredArgsConstructor;
+import org.springframework.security.core.annotation.AuthenticationPrincipal;
+import org.springframework.security.oauth2.core.user.OAuth2User;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.RestController;
+
+@RestController
+@RequiredArgsConstructor
+public class OAuth2SuccessController {
+
+    private final AuthenticationService jwtService;
+
+    @GetMapping()
+    public AuthenticationResponse getUser(@AuthenticationPrincipal OAuth2User oAuth2User) {
+
+        AuthenticationResponse response = jwtService.register(oAuth2User);
+        System.out.println("Response: " + response);
+
+        return response;
+    }
+}