OpenSearch - Add checks for the flattened search tag

api_logs/api-logs.go

@@ -194,14 +194,14 @@ type ApiLog struct {
 }
 
 type ApiLogRequest struct {
-	Headers         map[string]string `json:"headers,omitempty"`
+	Headers         map[string]string `json:"headers,omitempty"` // NOTE: Once we're on OpenSearch 2.7, we should add search:"flattened" here
 	QueryParameters map[string]string `json:"query_parameters,omitempty"`
 	BodySize        int               `json:"body_size" search:"long"` // set even when body is truncated/omitted
 	Body            string            `json:"body,omitempty"`          // json body as a string
 }
 
 type ApiLogResponse struct {
-	Headers  map[string]string `json:"headers,omitempty"`
+	Headers  map[string]string `json:"headers,omitempty"` // NOTE: Once we're on OpenSearch 2.7, we should add search:"flattened" here
 	BodySize int               `json:"body_size"`         // set even when body is truncated/omitted
 	Body     string            `json:"body,omitempty"`    // json content as a string
 }

opensearch/time_series.go

@@ -170,6 +170,12 @@ func structMappingProperties(structType reflect.Type) (map[string]MappingPropert
 					fieldMapping = MappingProperty{
 						Properties: subStructProperties,
 					}
+				} else if structField.Type.Kind() == reflect.Map {
+					// For maps, we only want to map if we specified "flattened" in the search tag
+					// If we did not specify the tag, we want to just continue without mapping
+					if structField.Tag.Get("search") != "flattened" {
+						continue
+					}
 				} else {
 					// fieldMapping = MappingProperty{Type: "text"}
 					// unknown value type... we do not specify mapping and let it use dynamic mapping
@@ -195,6 +201,7 @@ func structMappingProperties(structType reflect.Type) (map[string]MappingPropert
 			fieldMapping.Type = "object"
 			fieldMapping.Enabled = false
 		case "flattened":
+			// NOTE: This is only supported from OpenSearch 2.7 and onwards
 			fieldMapping.Type = "flat_object"
 		case "-":
 			// do not include in mapping