feat: Add logging custom attributes

v3/integrations/nrnats/test/go.mod

@@ -7,7 +7,7 @@ replace github.com/newrelic/go-agent/v3/integrations/nrnats v1.0.0 => ../
 
 require (
 	github.com/nats-io/nats-server v1.4.1
-	github.com/nats-io/nats.go v1.17.0
+	github.com/nats-io/nats.go v1.36.0
 	github.com/newrelic/go-agent/v3 v3.39.0
 	github.com/newrelic/go-agent/v3/integrations/nrnats v1.0.0
 )

v3/integrations/nrsnowflake/go.mod

@@ -1,6 +1,6 @@
 module github.com/newrelic/go-agent/v3/integrations/nrsnowflake
 
-go 1.22
+go 1.22.0
 
 toolchain go1.23.2
 
@@ -9,5 +9,4 @@ require (
 	github.com/snowflakedb/gosnowflake v1.14.0
 )
 
-
 replace github.com/newrelic/go-agent/v3 => ../..

v3/integrations/nrstan/examples/go.mod

@@ -1,12 +1,17 @@
 module github.com/newrelic/go-agent/v3/integrations/nrstan/examples
+
 // This module exists to avoid a dependency on nrnrats.
 go 1.22
+
 require (
-	github.com/nats-io/stan.go v0.5.0
+	github.com/nats-io/stan.go v0.10.4
 	github.com/newrelic/go-agent/v3 v3.39.0
 	github.com/newrelic/go-agent/v3/integrations/nrnats v0.0.0
 	github.com/newrelic/go-agent/v3/integrations/nrstan v0.0.0
 )
+
 replace github.com/newrelic/go-agent/v3/integrations/nrstan => ../
+
 replace github.com/newrelic/go-agent/v3/integrations/nrnats => ../../nrnats/
+
 replace github.com/newrelic/go-agent/v3 => ../../..

v3/newrelic/app_run.go

@@ -244,6 +244,9 @@ func (run *appRun) LoggingConfig() (config loggingConfig) {
 		config.includeLabels = run.Config.Labels
 		config.excludeLabels = &logging.Forwarding.Labels.Exclude
 	}
+	if run.Config.CustomInsightsEvents.CustomAttributesValues != nil && logging.Forwarding.Enabled && run.Config.CustomInsightsEvents.CustomAttributesEnabled {
+		config.customAttributes = run.Config.CustomInsightsEvents.CustomAttributesValues
+	}
 	return config
 }
 

v3/newrelic/config.go

@@ -67,6 +67,11 @@ type Config struct {
 	//
 	// https://docs.newrelic.com/docs/insights/new-relic-insights/adding-querying-data/inserting-custom-events-new-relic-apm-agents
 	CustomInsightsEvents struct {
+		// CustomAttributesEnabled Toggles whether we send our custom attributes with forwarded logs.
+		CustomAttributesEnabled bool
+		// CustomAttributes A hash with key/value pairs to add as custom attributes to all log events forwarded to New Relic.
+		// https://docs.newrelic.com/docs/TODO
+		CustomAttributesValues map[string]string
 		// Enabled controls whether RecordCustomEvent will collect
 		// custom analytics events.  High security mode overrides this
 		// setting.
@@ -631,6 +636,8 @@ func defaultConfig() Config {
 
 	c.Enabled = true
 	c.Labels = make(map[string]string)
+	c.CustomInsightsEvents.CustomAttributesEnabled = false
+	c.CustomInsightsEvents.CustomAttributesValues = make(map[string]string)
 	c.CustomInsightsEvents.Enabled = true
 	c.CustomInsightsEvents.MaxSamplesStored = internal.MaxCustomEvents
 	c.TransactionEvents.Enabled = true
@@ -827,6 +834,12 @@ func copyConfigReferenceFields(cfg Config) Config {
 			cp.Labels[key] = val
 		}
 	}
+	if cfg.CustomInsightsEvents.CustomAttributesValues != nil {
+		cp.CustomInsightsEvents.CustomAttributesValues = make(map[string]string, len(cfg.CustomInsightsEvents.CustomAttributesValues))
+		for key, val := range cfg.CustomInsightsEvents.CustomAttributesValues {
+			cp.CustomInsightsEvents.CustomAttributesValues[key] = val
+		}
+	}
 	if cfg.ErrorCollector.IgnoreStatusCodes != nil {
 		ignored := make([]int, len(cfg.ErrorCollector.IgnoreStatusCodes))
 		copy(ignored, cfg.ErrorCollector.IgnoreStatusCodes)

v3/newrelic/config_options.go

@@ -389,46 +389,67 @@ func ConfigLabels(labels map[string]string) ConfigOption {
 	}
 }
 
+// ConfigCustomInsightsCustomAttributesEnabled enables or disables sending our application
+// custom attributes (which are configured via ConfigCustomInsightsCustomAttributesValues) with forwarded log events.
+// Defaults: enabled=false
+// This may also be set using the NEW_RELIC_APPLICATION_LOGGING_FORWARDING_CUSTOM_ATTRIBUTES_ENABLED environment variable.
+func ConfigCustomInsightsCustomAttributesEnabled(enabled bool) ConfigOption {
+	return func(cfg *Config) {
+		cfg.CustomInsightsEvents.CustomAttributesEnabled = enabled
+	}
+}
+
+// ConfigCustomInsightsCustomAttributesValues configures a set of custom attributes to add as attributes to all log events forwarded to New Relic.
+// This may also be set using the NEW_RELIC_APPLICATION_LOGGING_FORWARDING_CUSTOM_ATTRIBUTES environment variable.
+func ConfigCustomInsightsCustomAttributesValues(customAttributes map[string]string) ConfigOption {
+	return func(cfg *Config) {
+		cfg.CustomInsightsEvents.CustomAttributesValues = make(map[string]string)
+		maps.Copy(cfg.CustomInsightsEvents.CustomAttributesValues, customAttributes)
+	}
+}
+
 // ConfigFromEnvironment populates the config based on environment variables:
 //
-//			NEW_RELIC_APP_NAME                                			sets AppName
-//			NEW_RELIC_ATTRIBUTES_EXCLUDE                      			sets Attributes.Exclude using a comma-separated list, eg. "request.headers.host,request.method"
-//			NEW_RELIC_ATTRIBUTES_INCLUDE                      			sets Attributes.Include using a comma-separated list
-//			NEW_RELIC_MODULE_DEPENDENCY_METRICS_ENABLED          		sets ModuleDependencyMetrics.Enabled
-//			NEW_RELIC_MODULE_DEPENDENCY_METRICS_IGNORED_PREFIXES 		sets ModuleDependencyMetrics.IgnoredPrefixes
-//			NEW_RELIC_MODULE_DEPENDENCY_METRICS_REDACT_IGNORED_PREFIXES sets ModuleDependencyMetrics.RedactIgnoredPrefixes to a boolean value
-//			NEW_RELIC_CODE_LEVEL_METRICS_ENABLED              			sets CodeLevelMetrics.Enabled
-//			NEW_RELIC_CODE_LEVEL_METRICS_SCOPE                			sets CodeLevelMetrics.Scope using a comma-separated list, e.g. "transaction"
-//			NEW_RELIC_CODE_LEVEL_METRICS_PATH_PREFIX          			sets CodeLevelMetrics.PathPrefixes using a comma-separated list
-//			NEW_RELIC_CODE_LEVEL_METRICS_REDACT_PATH_PREFIXES    		sets CodeLevelMetrics.RedactPathPrefixes to a boolean value
-//		 	NEW_RELIC_CODE_LEVEL_METRICS_REDACT_IGNORED_PREFIXES 		sets CodeLevelMetrics.RedactIgnoredPrefixes to a boolean value
-//			NEW_RELIC_CODE_LEVEL_METRICS_IGNORED_PREFIX       			sets CodeLevelMetrics.IgnoredPrefixes using a comma-separated list
-//			NEW_RELIC_DISTRIBUTED_TRACING_ENABLED             			sets DistributedTracer.Enabled using strconv.ParseBool
-//			NEW_RELIC_ENABLED                                 			sets Enabled using strconv.ParseBool
-//			NEW_RELIC_HIGH_SECURITY                           			sets HighSecurity using strconv.ParseBool
-//			NEW_RELIC_HOST                                    			sets Host
-//			NEW_RELIC_INFINITE_TRACING_SPAN_EVENTS_QUEUE_SIZE 			sets InfiniteTracing.SpanEvents.QueueSize using strconv.Atoi
-//			NEW_RELIC_INFINITE_TRACING_TRACE_OBSERVER_PORT    			sets InfiniteTracing.TraceObserver.Port using strconv.Atoi
-//			NEW_RELIC_INFINITE_TRACING_TRACE_OBSERVER_HOST    			sets InfiniteTracing.TraceObserver.Host
-//			NEW_RELIC_LABELS                                  			sets Labels using a semi-colon delimited string of colon-separated pairs, eg. "Server:One;DataCenter:Primary"
-//			NEW_RELIC_LICENSE_KEY                             			sets License
-//			NEW_RELIC_LOG                                     			sets Logger to log to either "stdout" or "stderr" (filenames are not supported)
-//			NEW_RELIC_LOG_LEVEL                               			controls the NEW_RELIC_LOG level, must be "debug" for debug, or empty for info
-//			NEW_RELIC_PROCESS_HOST_DISPLAY_NAME               			sets HostDisplayName
-//			NEW_RELIC_SECURITY_POLICIES_TOKEN                 			sets SecurityPoliciesToken
-//			NEW_RELIC_UTILIZATION_BILLING_HOSTNAME            			sets Utilization.BillingHostname
-//			NEW_RELIC_UTILIZATION_LOGICAL_PROCESSORS          			sets Utilization.LogicalProcessors using strconv.Atoi
-//			NEW_RELIC_UTILIZATION_TOTAL_RAM_MIB               			sets Utilization.TotalRAMMIB using strconv.Atoi
-//			NEW_RELIC_APPLICATION_LOGGING_ENABLED						sets ApplicationLogging.Enabled. Set to false to disable all application logging features.
-//		 	NEW_RELIC_APPLICATION_LOGGING_FORWARDING_ENABLED  			sets ApplicationLogging.LogForwarding.Enabled. Set to false to disable in agent log forwarding.
-//	     NEW_RELIC_APPLICATION_LOGGING_FORWARDING_LABELS_ENABLED     sets ApplicationLogging.LogForwarding.Labels.Enabled to enable sending application labels with forwarded logs.
-//	     NEW_RELIC_APPLICATION_LOGGING_FORWARDING_LABELS_EXCLUDE     sets ApplicationLogging.LogForwarding.Labels.Exclude to filter out a set of unwanted label types from the ones reported with logs.
-//		 	NEW_RELIC_APPLICATION_LOGGING_METRICS_ENABLED		  		sets ApplicationLogging.Metrics.Enabled. Set to false to disable the collection of application log metrics.
-//		 	NEW_RELIC_APPLICATION_LOGGING_LOCAL_DECORATING_ENABLED      sets ApplicationLogging.LocalDecoration.Enabled. Set to true to enable local log decoration.
-//			NEW_RELIC_APPLICATION_LOGGING_FORWARDING_MAX_SAMPLES_STORED	sets ApplicationLogging.LogForwarding.Limit. Set to 0 to prevent captured logs from being forwarded.
-//			NEW_RELIC_AI_MONITORING_ENABLED								sets AIMonitoring.Enabled
-//			NEW_RELIC_AI_MONITORING_STREAMING_ENABLED					sets AIMonitoring.Streaming.Enabled
-//			NEW_RELIC_AI_MONITORING_RECORD_CONTENT_ENABLED				sets AIMonitoring.RecordContent.Enabled
+//		NEW_RELIC_APP_NAME                                			sets AppName
+//		NEW_RELIC_ATTRIBUTES_EXCLUDE                      			sets Attributes.Exclude using a comma-separated list, eg. "request.headers.host,request.method"
+//		NEW_RELIC_ATTRIBUTES_INCLUDE                      			sets Attributes.Include using a comma-separated list
+//		NEW_RELIC_MODULE_DEPENDENCY_METRICS_ENABLED          		sets ModuleDependencyMetrics.Enabled
+//		NEW_RELIC_MODULE_DEPENDENCY_METRICS_IGNORED_PREFIXES 		sets ModuleDependencyMetrics.IgnoredPrefixes
+//		NEW_RELIC_MODULE_DEPENDENCY_METRICS_REDACT_IGNORED_PREFIXES sets ModuleDependencyMetrics.RedactIgnoredPrefixes to a boolean value
+//		NEW_RELIC_CODE_LEVEL_METRICS_ENABLED              			sets CodeLevelMetrics.Enabled
+//		NEW_RELIC_CODE_LEVEL_METRICS_SCOPE                			sets CodeLevelMetrics.Scope using a comma-separated list, e.g. "transaction"
+//		NEW_RELIC_CODE_LEVEL_METRICS_PATH_PREFIX          			sets CodeLevelMetrics.PathPrefixes using a comma-separated list
+//		NEW_RELIC_CODE_LEVEL_METRICS_REDACT_PATH_PREFIXES    		sets CodeLevelMetrics.RedactPathPrefixes to a boolean value
+//	 	NEW_RELIC_CODE_LEVEL_METRICS_REDACT_IGNORED_PREFIXES 		sets CodeLevelMetrics.RedactIgnoredPrefixes to a boolean value
+//		NEW_RELIC_CODE_LEVEL_METRICS_IGNORED_PREFIX       			sets CodeLevelMetrics.IgnoredPrefixes using a comma-separated list
+//		NEW_RELIC_DISTRIBUTED_TRACING_ENABLED             			sets DistributedTracer.Enabled using strconv.ParseBool
+//		NEW_RELIC_ENABLED                                 			sets Enabled using strconv.ParseBool
+//		NEW_RELIC_HIGH_SECURITY                           			sets HighSecurity using strconv.ParseBool
+//		NEW_RELIC_HOST                                    			sets Host
+//		NEW_RELIC_INFINITE_TRACING_SPAN_EVENTS_QUEUE_SIZE 			sets InfiniteTracing.SpanEvents.QueueSize using strconv.Atoi
+//		NEW_RELIC_INFINITE_TRACING_TRACE_OBSERVER_PORT    			sets InfiniteTracing.TraceObserver.Port using strconv.Atoi
+//		NEW_RELIC_INFINITE_TRACING_TRACE_OBSERVER_HOST    			sets InfiniteTracing.TraceObserver.Host
+//		NEW_RELIC_LABELS                                  			sets Labels using a semi-colon delimited string of colon-separated pairs, eg. "Server:One;DataCenter:Primary"
+//		NEW_RELIC_LICENSE_KEY                             			sets License
+//		NEW_RELIC_LOG                                     			sets Logger to log to either "stdout" or "stderr" (filenames are not supported)
+//		NEW_RELIC_LOG_LEVEL                               			controls the NEW_RELIC_LOG level, must be "debug" for debug, or empty for info
+//		NEW_RELIC_PROCESS_HOST_DISPLAY_NAME               			sets HostDisplayName
+//		NEW_RELIC_SECURITY_POLICIES_TOKEN                 			sets SecurityPoliciesToken
+//		NEW_RELIC_UTILIZATION_BILLING_HOSTNAME            			sets Utilization.BillingHostname
+//		NEW_RELIC_UTILIZATION_LOGICAL_PROCESSORS          			sets Utilization.LogicalProcessors using strconv.Atoi
+//		NEW_RELIC_UTILIZATION_TOTAL_RAM_MIB               			sets Utilization.TotalRAMMIB using strconv.Atoi
+//		NEW_RELIC_APPLICATION_LOGGING_ENABLED						sets ApplicationLogging.Enabled. Set to false to disable all application logging features.
+//	 	NEW_RELIC_APPLICATION_LOGGING_FORWARDING_ENABLED  			sets ApplicationLogging.LogForwarding.Enabled. Set to false to disable in agent log forwarding.
+//		NEW_RELIC_APPLICATION_LOGGING_FORWARDING_LABELS_ENABLED     sets ApplicationLogging.LogForwarding.Labels.Enabled to enable sending application labels with forwarded logs.
+//		NEW_RELIC_APPLICATION_LOGGING_FORWARDING_LABELS_EXCLUDE     sets ApplicationLogging.LogForwarding.Labels.Exclude to filter out a set of unwanted label types from the ones reported with logs.
+//	 	NEW_RELIC_APPLICATION_LOGGING_METRICS_ENABLED		  		sets ApplicationLogging.Metrics.Enabled. Set to false to disable the collection of application log metrics.
+//	 	NEW_RELIC_APPLICATION_LOGGING_LOCAL_DECORATING_ENABLED      sets ApplicationLogging.LocalDecoration.Enabled. Set to true to enable local log decoration.
+//		NEW_RELIC_APPLICATION_LOGGING_FORWARDING_MAX_SAMPLES_STORED	sets ApplicationLogging.LogForwarding.Limit. Set to 0 to prevent captured logs from being forwarded.
+//		NEW_RELIC_APPLICATION_LOGGING_FORWARDING_CUSTOM_ATTRIBUTES_ENABLED sets CustomInsightsEvents.CustomAttributesEnabled to enable sending application custom attributes with forwarded logs.
+//		NEW_RELIC_APPLICATION_LOGGING_FORWARDING_CUSTOM_ATTRIBUTES	sets CustomInsightsEvents.CustomAttributesValues A hash with key/value pairs to add as custom attributes to all log events forwarded to New Relic.
+//		NEW_RELIC_AI_MONITORING_ENABLED								sets AIMonitoring.Enabled
+//		NEW_RELIC_AI_MONITORING_STREAMING_ENABLED					sets AIMonitoring.Streaming.Enabled
+//		NEW_RELIC_AI_MONITORING_RECORD_CONTENT_ENABLED				sets AIMonitoring.RecordContent.Enabled
 //
 // This function is strict and will assign Config.Error if any of the
 // environment variables cannot be parsed.
@@ -504,6 +525,7 @@ func configFromEnvironment(getenv func(string) string) ConfigOption {
 		assignBool(&cfg.AIMonitoring.Enabled, "NEW_RELIC_AI_MONITORING_ENABLED")
 		assignBool(&cfg.AIMonitoring.Streaming.Enabled, "NEW_RELIC_AI_MONITORING_STREAMING_ENABLED")
 		assignBool(&cfg.AIMonitoring.RecordContent.Enabled, "NEW_RELIC_AI_MONITORING_RECORD_CONTENT_ENABLED")
+		assignBool(&cfg.CustomInsightsEvents.CustomAttributesEnabled, "NEW_RELIC_APPLICATION_LOGGING_FORWARDING_CUSTOM_ATTRIBUTES_ENABLED")
 
 		if env := getenv("NEW_RELIC_LABELS"); env != "" {
 			labels, err := getLabels(getenv("NEW_RELIC_LABELS"))
@@ -515,6 +537,16 @@ func configFromEnvironment(getenv func(string) string) ConfigOption {
 			}
 		}
 
+		if env := getenv("NEW_RELIC_APPLICATION_LOGGING_FORWARDING_CUSTOM_ATTRIBUTES"); env != "" {
+			customAttributes, err := getLabels(getenv("NEW_RELIC_APPLICATION_LOGGING_FORWARDING_CUSTOM_ATTRIBUTES"))
+			if err != nil {
+				cfg.Error = fmt.Errorf("invalid NEW_RELIC_APPLICATION_LOGGING_FORWARDING_CUSTOM_ATTRIBUTES value: %s: %v", env, err)
+				cfg.CustomInsightsEvents.CustomAttributesValues = nil
+			} else if len(customAttributes) > 0 {
+				cfg.CustomInsightsEvents.CustomAttributesValues = customAttributes
+			}
+		}
+
 		if env := getenv("NEW_RELIC_ATTRIBUTES_INCLUDE"); env != "" {
 			cfg.Attributes.Include = strings.Split(env, ",")
 		}

v3/newrelic/config_test.go

@@ -85,6 +85,7 @@ func TestCopyConfigReferenceFieldsPresent(t *testing.T) {
 	cfg.AppName = "my appname"
 	cfg.License = "0123456789012345678901234567890123456789"
 	cfg.Labels["zip"] = "zap"
+	cfg.CustomInsightsEvents.CustomAttributesValues["fiz"] = "baz"
 	cfg.ErrorCollector.IgnoreStatusCodes = append(cfg.ErrorCollector.IgnoreStatusCodes, 405)
 	cfg.ErrorCollector.ExpectStatusCodes = append(cfg.ErrorCollector.ExpectStatusCodes, 500)
 	cfg.Attributes.Include = append(cfg.Attributes.Include, "1")
@@ -107,6 +108,7 @@ func TestCopyConfigReferenceFieldsPresent(t *testing.T) {
 	cp := copyConfigReferenceFields(cfg)
 
 	cfg.Labels["zop"] = "zup"
+	cfg.Labels["foz"] = "buz"
 	cfg.ErrorCollector.IgnoreStatusCodes[0] = 201
 	cfg.Attributes.Include[0] = "zap"
 	cfg.Attributes.Exclude[0] = "zap"
@@ -168,6 +170,8 @@ func TestCopyConfigReferenceFieldsPresent(t *testing.T) {
 			"CodeLevelMetrics":{"Enabled":true,"IgnoredPrefix":"","IgnoredPrefixes":null,"PathPrefix":"","PathPrefixes":null,"RedactIgnoredPrefixes":true,"RedactPathPrefixes":true,"Scope":"all"},
 			"CrossApplicationTracer":{"Enabled":false},
 			"CustomInsightsEvents":{
+				"CustomAttributesEnabled":false,
+				"CustomAttributesValues":{"fiz":"baz"},
 				"Enabled":true,
 				"MaxSamplesStored":%d
 			},
@@ -329,6 +333,7 @@ func TestCopyConfigReferenceFieldsPresent(t *testing.T) {
 func TestCopyConfigReferenceFieldsAbsent(t *testing.T) {
 	cfg := defaultConfig()
 	cfg.AppName = "my appname"
+	cfg.CustomInsightsEvents.CustomAttributesValues = nil
 	cfg.License = "0123456789012345678901234567890123456789"
 	cfg.Labels = nil
 	cfg.ErrorCollector.IgnoreStatusCodes = nil
@@ -384,6 +389,8 @@ func TestCopyConfigReferenceFieldsAbsent(t *testing.T) {
 			"CodeLevelMetrics":{"Enabled":true,"IgnoredPrefix":"","IgnoredPrefixes":null,"PathPrefix":"","PathPrefixes":null,"RedactIgnoredPrefixes":true,"RedactPathPrefixes":true,"Scope":"all"},
 			"CrossApplicationTracer":{"Enabled":false},
 			"CustomInsightsEvents":{
+				"CustomAttributesEnabled": false,
+				"CustomAttributesValues": null,
 				"Enabled":true,
 				"MaxSamplesStored":%d
 			},
@@ -507,7 +514,8 @@ func TestCopyConfigReferenceFieldsAbsent(t *testing.T) {
 	}
 	out := standardizeNumbers(string(js))
 	if out != expect {
-		t.Error(string(js))
+		t.Error(expect)
+		t.Error(out)
 	}
 }
 

v3/newrelic/harvest.go

@@ -360,6 +360,7 @@ var (
 			internal.MaxLogEvents,
 			nil,
 			nil,
+			nil,
 		},
 	}
 )

v3/newrelic/log_events.go

@@ -181,6 +181,14 @@ func (events *logEvents) CollectorJSON(agentRunID string) ([]byte, error) {
 			}
 		}
 	}
+	if events.config.customAttributes != nil {
+		for k, v := range events.config.customAttributes {
+			buf.WriteByte(',')
+			jsonx.AppendString(buf, k)
+			buf.WriteByte(':')
+			jsonx.AppendString(buf, v)
+		}
+	}
 	buf.WriteByte('}')
 	buf.WriteByte('}')
 	buf.WriteByte(',')

v3/newrelic/metric_names.go

@@ -91,13 +91,14 @@ func supportMetric(metrics *metricTable, b bool, metricName string) {
 // logging features for log data generation and supportability
 // metrics generation.
 type loggingConfig struct {
-	loggingEnabled  bool              // application logging features are enabled
-	collectEvents   bool              // collection of log event data is enabled
-	collectMetrics  bool              // collection of log metric data is enabled
-	localEnrichment bool              // local log enrichment is enabled
-	maxLogEvents    int               // maximum number of log events allowed to be collected
-	includeLabels   map[string]string // READ ONLY: if not nil, add these labels to log common data too
-	excludeLabels   *[]string         // READ ONLY: if not nil, exclude these label keys from the included labels
+	loggingEnabled   bool              // application logging features are enabled
+	collectEvents    bool              // collection of log event data is enabled
+	collectMetrics   bool              // collection of log metric data is enabled
+	localEnrichment  bool              // local log enrichment is enabled
+	maxLogEvents     int               // maximum number of log events allowed to be collected
+	includeLabels    map[string]string // READ ONLY: if not nil, add these labels to log common data too
+	excludeLabels    *[]string         // READ ONLY: if not nil, exclude these label keys from the included labels
+	customAttributes map[string]string // READ ONLY: if not nil, add these custom attributes to log common data too
 }
 
 // Logging metrics that are generated at connect response