feat: #39 fcm 의존성 추가 && admin key 주입

fitapet-infra/.gitignore

@@ -39,4 +39,7 @@ bin/
 .vscode/
 
 ### Mac OS ###
-.DS_Store
+.DS_Store
+
+## firebase sdk key ###
+fitapet-ios-firebase-adminsdk-ethnn-6ec10fe329.json

fitapet-infra/build.gradle

@@ -30,5 +30,8 @@ dependencies {
     implementation 'com.fasterxml.jackson.core:jackson-core:2.13.5'
     implementation 'com.fasterxml.jackson.datatype:jackson-datatype-jdk8:2.13.5'
 
+    /* Firebase */
+    implementation 'com.google.firebase:firebase-admin:9.2.0'
+
     implementation project(':fitapet-common')
 }

fitapet-infra/src/main/java/kr/co/fitapet/infra/config/FcmConfig.java

@@ -0,0 +1,29 @@
+package kr.co.fitapet.infra.config;
+
+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 org.springframework.core.io.ClassPathResource;
+
+import java.io.IOException;
+
+@Configuration
+public class FcmConfig {
+    private final ClassPathResource firebaseResource = new ClassPathResource("firebase/fitapet-ios-firebase-adminsdk-ethnn-6ec10fe329.json");
+
+    @Bean
+    FirebaseApp firebaseApp() throws IOException {
+        FirebaseOptions option = FirebaseOptions.builder()
+                .setCredentials(GoogleCredentials.fromStream(firebaseResource.getInputStream()))
+                .build();
+        return FirebaseApp.initializeApp(option);
+    }
+
+    @Bean
+    FirebaseMessaging firebaseMessaging() throws IOException {
+        return FirebaseMessaging.getInstance(firebaseApp());
+    }
+}