[FEAT]/#70-FCMConfig 구현

.gitignore

@@ -36,3 +36,4 @@ out/
 ### VS Code ###
 .vscode/
 application.properties
+treehouse-fcm-secretKey.json

build.gradle

@@ -47,6 +47,9 @@ dependencies {
     // aws s3
     implementation 'org.springframework.cloud:spring-cloud-starter-aws:2.2.6.RELEASE'
 
+    //FCM
+    implementation 'com.google.firebase:firebase-admin:9.2.0'
+
     runtimeOnly 'com.h2database:h2'
     testImplementation 'org.springframework.boot:spring-boot-starter-test'
     implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk8"

src/main/java/org/example/tree/global/config/FCMConfig.java

@@ -0,0 +1,40 @@
+package org.example.tree.global.config;
+
+import com.google.auth.oauth2.GoogleCredentials;
+import com.google.firebase.FirebaseApp;
+import com.google.firebase.FirebaseOptions;
+import jakarta.annotation.PostConstruct;
+import lombok.extern.slf4j.Slf4j;
+import org.springframework.beans.factory.annotation.Value;
+import org.springframework.context.annotation.Configuration;
+import org.springframework.core.io.ClassPathResource;
+
+import java.io.IOException;
+import java.io.InputStream;
+
+@Slf4j
+@Configuration
+public class FCMConfig {
+
+    @Value("${firebase.key-path}")
+    private String fcmKeyPath;
+
+    @PostConstruct
+    public void initialize() {
+        try {
+            final InputStream refreshToken = new ClassPathResource(fcmKeyPath).getInputStream();
+
+            final FirebaseOptions options = FirebaseOptions
+                    .builder()
+                    .setCredentials(GoogleCredentials.fromStream(refreshToken))
+                    .build();
+
+            FirebaseApp.initializeApp(options);
+            log.info("Fcm Setting Completed");
+
+        } catch (final IOException e) {
+            throw new RuntimeException(e.getMessage());
+        }
+    }
+
+}

src/main/resources/application.yml

@@ -78,6 +78,10 @@ cloud:
       secret-key: ${SECRET_KEY}
       #aws access key, secret key
 
+  firebase:
+    key-path: ${FIREBASE_KEY_PATH}
+    #firebase key path for push notification
+
 ---
 #spring:
 #  config: