add dynamic config pulse (#249)

Co-authored-by: kenny-statsig <[email protected]>

Author: kat-statsig

client_initialize_response.go

@@ -46,6 +46,7 @@ type ConfigInitializeResponse struct {
 	ExplicitParameters *[]string              `json:"explicit_parameters,omitempty"`
 	GroupName          string                 `json:"group_name,omitempty"`
 	IDType             string                 `json:"id_type,omitempty"`
+	RulePassed         bool                   `json:"passed"`
 }
 
 type LayerInitializeResponse struct {
@@ -123,6 +124,7 @@ func getClientInitializeResponse(
 			Group:                      evalRes.RuleID,
 			IsDeviceBased:              strings.EqualFold(spec.IDType, "stableid"),
 			IDType:                     spec.IDType,
+			RulePassed:                 evalRes.Value,
 		}
 		if evalRes.GroupName != "" {
 			result.GroupName = evalRes.GroupName

logger.go

@@ -192,8 +192,9 @@ func (l *logger) getConfigExposureWithEvaluationDetails(
 	context *evalContext,
 ) *ExposureEvent {
 	metadata := map[string]string{
-		"config": configName,
-		"ruleID": res.RuleID,
+		"config":     configName,
+		"ruleID":     res.RuleID,
+		"rulePassed": strconv.FormatBool(res.Value),
 	}
 	if context != nil && context.IsManualExposure {
 		metadata["isManualExposure"] = "true"

logger_test.go

@@ -85,8 +85,9 @@ func TestLog(t *testing.T) {
 	}
 
 	configExposureEvent := ExposureEvent{EventName: ConfigExposureEventName, User: privateUser, Metadata: map[string]string{
-		"config": "test_config",
-		"ruleID": "rule_id_config",
+		"config":     "test_config",
+		"ruleID":     "rule_id_config",
+		"rulePassed": "false",
 	}, SecondaryExposures: exposures, Time: evt3.Time}
 
 	if !reflect.DeepEqual(evt3, configExposureEvent) {