Merge pull request #83 from Donut-DONationUTile/feature/fcm

Feature/fcm

.gitignore

@@ -1,3 +1,9 @@
+FirebaseConfig.*
+FcmUtils.*
+FirebaseConfig.*
+FcmController.*
+FcmService.*
+
 HELP.md
 .gradle
 build/

src/main/java/zero/eight/donut/config/firebase/FcmUtils.java

@@ -6,6 +6,7 @@
 import com.google.firebase.messaging.Notification;
 import lombok.RequiredArgsConstructor;
 import lombok.extern.slf4j.Slf4j;
+import org.springframework.stereotype.Component;
 import zero.eight.donut.config.jwt.AuthUtils;
 import zero.eight.donut.domain.FcmToken;
 import zero.eight.donut.domain.Giver;
@@ -21,6 +22,7 @@
 
 @Slf4j
 @RequiredArgsConstructor
+@Component
 public class FcmUtils {
 
     private final AuthUtils authUtils;
@@ -90,4 +92,4 @@ public Message makeMessage(String targetToken, String title, String body) {
                 .setToken(targetToken)
                 .build();
     }
-}
+}

src/main/java/zero/eight/donut/config/firebase/FirebaseConfig.java

@@ -3,11 +3,12 @@
 import com.google.auth.oauth2.GoogleCredentials;
 import com.google.firebase.FirebaseApp;
 import com.google.firebase.FirebaseOptions;
+import com.google.firebase.messaging.FirebaseMessaging;
+import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.Configuration;
 
 import javax.annotation.PostConstruct;
 import java.io.FileInputStream;
-import java.io.FileNotFoundException;
 
 @Configuration
 public class FirebaseConfig {
@@ -25,4 +26,24 @@ public void init() {
             e.printStackTrace();
         }
     }
-}
+
+
+    @Bean
+    public FirebaseMessaging firebaseMessaging() {
+        try {
+            FileInputStream serviceAccount =
+                    new FileInputStream("src/main/resources/serviceAccountKey.json");
+
+            FirebaseOptions options = new FirebaseOptions.Builder()
+                    .setCredentials(GoogleCredentials.fromStream(serviceAccount))
+                    .build();
+
+            if (FirebaseApp.getApps().isEmpty()) { // FirebaseApp의 중복 초기화 방지.
+                FirebaseApp.initializeApp(options);
+            }
+            return FirebaseMessaging.getInstance();
+        } catch (Exception e) {
+            throw new IllegalStateException("Firebase Messaging 서비스를 초기화하는 동안 문제가 발생했습니다.", e);
+        }
+    }
+}