🔧 config(redis): add redis cache config class

backend/streetdrop-api/src/main/java/com/depromeet/external/redis/RedisConfig.java

@@ -0,0 +1,65 @@
+package com.depromeet.external.redis;
+
+import org.springframework.beans.factory.annotation.Value;
+import org.springframework.cache.annotation.EnableCaching;
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+import org.springframework.data.redis.cache.RedisCacheConfiguration;
+import org.springframework.data.redis.cache.RedisCacheManager;
+import org.springframework.data.redis.connection.RedisConnectionFactory;
+import org.springframework.data.redis.connection.lettuce.LettuceConnectionFactory;
+import org.springframework.data.redis.core.RedisTemplate;
+import org.springframework.data.redis.serializer.GenericJackson2JsonRedisSerializer;
+import org.springframework.data.redis.serializer.RedisSerializationContext;
+import org.springframework.data.redis.serializer.StringRedisSerializer;
+
+import java.time.Duration;
+
+@Configuration
+//@EnableCaching
+public class RedisConfig {
+
+	@Value("${spring.data.redis.host}")
+	private String host;
+
+	@Value("${spring.data.redis.port}")
+	private int port;
+
+	@Value("${spring.data.redis.timeout}")
+	private int timeout;
+
+	@Bean
+	public RedisConnectionFactory redisConnectionFactory() {
+		return new LettuceConnectionFactory(host, port);
+	}
+
+	@Bean
+	public RedisTemplate<String, Object> redisTemplate() {
+		RedisTemplate<String, Object> redisTemplate = new RedisTemplate<>();
+		redisTemplate.setConnectionFactory(redisConnectionFactory());
+		redisTemplate.afterPropertiesSet();;
+		return redisTemplate;
+	}
+
+	@Bean(name = "redisCacheManager")
+	public RedisCacheManager cacheManager(RedisConnectionFactory connectionFactory) {
+		RedisCacheConfiguration configuration = RedisCacheConfiguration
+				.defaultCacheConfig()
+				.disableCachingNullValues()
+				.entryTtl(Duration.ofMinutes(timeout))
+				.serializeKeysWith(
+						RedisSerializationContext
+								.SerializationPair
+								.fromSerializer(new StringRedisSerializer()))
+				.serializeValuesWith(
+						RedisSerializationContext
+								.SerializationPair
+								.fromSerializer(new GenericJackson2JsonRedisSerializer()));
+
+		return RedisCacheManager.RedisCacheManagerBuilder
+				.fromConnectionFactory(connectionFactory)
+				.cacheDefaults(configuration)
+				.build();
+	}
+
+}

backend/streetdrop-api/src/main/resources/application-dev.yml

@@ -10,6 +10,15 @@ spring:
   jpa:
     hibernate:
       ddl-auto: update
+  cache:
+    type: redis
+    redis:
+      cache-null-values: true
+  data:
+    redis:
+      host: ${REDIS_HOST}
+      port: ${REDIS_PORT}
+      timeout: 30
 swagger:
   server-url: ${SWAGGER_SERVER_URL}
 slack:

backend/streetdrop-api/src/main/resources/application-prod.yml

@@ -10,6 +10,15 @@ spring:
   jpa:
     hibernate:
       ddl-auto: update
+  cache:
+    type: redis
+    redis:
+      cache-null-values: true
+  data:
+    redis:
+      host: ${REDIS_HOST}
+      port: ${REDIS_PORT}
+      timeout: 30
 swagger:
   server-url: ${SWAGGER_SERVER_URL}
 slack: