fix: 카카오톡 send bulk시 모든 결과 수신 단위 결과처리 -> bulk단위 별 결과 처리하도록 변경

mens-core/src/main/java/kr/xit/core/spring/config/support/WebClientConfig.java

@@ -20,6 +20,7 @@ import io.netty.handler.logging.*;
 import io.netty.handler.ssl.*;
 import io.netty.handler.ssl.util.*;
 import io.netty.handler.timeout.*;
+import io.netty.resolver.*;
 import kr.xit.core.exception.*;
 import lombok.*;
 import lombok.extern.slf4j.*;
@@ -105,7 +106,14 @@ public class WebClientConfig {
                 .doOnConnected(conn ->
                     conn.addHandlerLast(new ReadTimeoutHandler(readTimeout, TimeUnit.MILLISECONDS))
                         .addHandlerLast(
-                            new WriteTimeoutHandler(readTimeout, TimeUnit.MILLISECONDS)));
+                            new WriteTimeoutHandler(readTimeout, TimeUnit.MILLISECONDS)))
+                /*
+                FIXME: 아래 에러 처리를 위해 코드 추가
+                Request processing failed; nested exception is org.springframework.web.reactive.function.client.WebClientRequestException: failed to resolve 'api.github.com' after 2 queries ; 
+                nested exception is java.net.UnknownHostException: failed to resolve 'api.github.com' after 2 queries ] with root cause
+                io.netty.resolver.dns.DnsNameResolverTimeoutException: [/168.126.63.2:53] query via UDP timed out after 5000 milliseconds (no stack trace available)
+                 */
+                .resolver(DefaultAddressResolverGroup.INSTANCE);
         }catch(SSLException se){
             throw BizRuntimeException.create(se.getMessage());
         }