How to enable all HTTP Service debug modes? - Enhanced HTTP Wire Logging for Mule 4 APIs

You may use the  API´s src/main/resources/log4j2.xml file or Runtime Manager user-interface too, as explained in the HTTP Wire Logging article, to set the DEBUG level log to each of the following packages:

• com.mulesoft.service.http.impl.service.client.builder.NameResolvingRequestBuilder
  • Log DNS lookup
• com.mulesoft.service.http.impl.service.client.EEGrizzlyHttpClient
  • Log retry with another IP address
• com.mulesoft.service.http.impl.service.client.ws.GrizzlyWebSocketHandlerManager
  • Log when mule application closed stream when more data available in connection
• com.mulesoft.service.http.impl.service.client.ws.OutboundWebSocketListener
  • Log when mule application closed stream when more data available in connection
• com.mulesoft.service.http.impl.service.ws.GrizzlyWebSocketBroadcaster
  • Log WebSocket broadcast details
• org.mule.extension.http.api.listener.HttpBasicAuthenticationFilter
  • Log authentication details
• org.mule.extension.http.api.policy.HttpListenerPolicyPointcutParameters
  • Log exception about headers and masked request path
• org.mule.extension.http.internal.listener.HttpListener
• org.mule.extension.http.internal.listener.HttpResponseFactory
• org.mule.extension.http.internal.request.HttpRequester
• org.mule.extension.http.internal.request.HttpRequestFactory
• org.mule.extension.http.internal.request.HttpRequestOperations
• org.mule.extension.http.internal.StaticResourceLoader
  • Log details of requested resource location
• org.mule.service.http.impl.config.ContainerTcpServerSocketProperties
  • Log server socket configuration details
• org.mule.service.http.impl.service.client.GrizzlyHttpClient
• org.mule.service.http.impl.service.HttpMessageLogger
  • Standard HTTP Wire Logging
• org.mule.service.http.impl.service.server.grizzly.GrizzlyHttpServer
• org.mule.service.http.impl.service.server.grizzly.GrizzlyServerManager

Examples for each environment:

• On-Prem
  • Adding this to the API´s src/main/resources/log4j2.xml file:

    <AsyncLogger name="com.mulesoft.service.http.impl.service.client.builder.NameResolvingRequestBuilder" level="DEBUG" />

• On-Prem Hybrid or CloudHub
  • Adding this to the "Logging" tab in Anypoint Runtime Manager UI:​​​​​​

    com.mulesoft.service.http.impl.service.client.builder.NameResolvingRequestBuilder=DEBUG

• Runtime Fabric
  • Adding this to the "Properties" tab in Anypoint Runtime Manager UI:

    logging.level.com.mulesoft.service.http.impl.service.client.builder.NameResolvingRequestBuilder=DEBUG