started on gmail controller

.gitignore

@@ -6,6 +6,7 @@ target/
 .DS_Store
 */.DS_Store
 **/.DS_Store
+credentials.json
 
 ### STS ###
 .apt_generated

pom.xml

@@ -68,6 +68,18 @@
 			<artifactId>hypersistence-utils-hibernate-63</artifactId>
 			<version>3.8.1</version>
 		</dependency>
+		<!-- https://mvnrepository.com/artifact/com.google.api-client/google-api-client -->
+		<dependency>
+			<groupId>com.google.api-client</groupId>
+			<artifactId>google-api-client</artifactId>
+			<version>2.6.0</version>
+		</dependency>
+		<!-- https://mvnrepository.com/artifact/com.google.oauth-client/google-oauth-client-jetty -->
+		<dependency>
+			<groupId>com.google.oauth-client</groupId>
+			<artifactId>google-oauth-client-jetty</artifactId>
+			<version>1.36.0</version>
+		</dependency>
 		<dependency>
 			<groupId>com.google.apis</groupId>
 			<artifactId>google-api-services-gmail</artifactId>

src/main/java/com/safeqr/app/gmail/controller/GmailController.java

@@ -0,0 +1,33 @@
+package com.safeqr.app.gmail.controller;
+
+import com.safeqr.app.gmail.service.GmailService;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.http.MediaType;
+import org.springframework.http.ResponseEntity;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RestController;
+
+import java.util.Map;
+
+import static com.safeqr.app.constants.APIConstants.API_VERSION;
+
+@RestController
+@RequestMapping(API_VERSION)
+public class GmailController {
+    private static final Logger logger = LoggerFactory.getLogger(GmailController.class);
+    GmailService gmailService;
+    @Autowired
+    public GmailController(GmailService gmailService) {
+        this.gmailService = gmailService;
+    }
+
+    @GetMapping(value = "/gmail/authenticate", produces = MediaType.APPLICATION_JSON_VALUE)
+    public ResponseEntity<?> authenticate() {
+        logger.info("Health Check");
+        return ResponseEntity.ok(Map.of("version", "SafeQR v1.0.2"));
+    }
+}
+

src/main/java/com/safeqr/app/gmail/service/GmailService.java

@@ -0,0 +1,11 @@
+package com.safeqr.app.gmail.service;
+
+import com.safeqr.app.qrcode.service.EmailVerificationService;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.springframework.stereotype.Service;
+
+@Service
+public class GmailService {
+    private static final Logger logger = LoggerFactory.getLogger(GmailService.class);
+}