test(function_api): add test for x-detailapi header response

* include table name and prefix in response
* add field metadata extraction for raw SQL results

pkg/funcspec/function_api.go

@@ -17,6 +17,7 @@ import (
 
 	"github.com/bitechdev/ResolveSpec/pkg/common"
 	"github.com/bitechdev/ResolveSpec/pkg/logger"
+	"github.com/bitechdev/ResolveSpec/pkg/reflection"
 	"github.com/bitechdev/ResolveSpec/pkg/restheadspec"
 	"github.com/bitechdev/ResolveSpec/pkg/security"
 )
@@ -367,13 +368,17 @@ func (h *Handler) SqlQueryList(sqlquery string, options SqlQueryOptions) HTTPFun
 			}
 
 		case "detail":
-			// Detail format: complex API with metadata
+			// Detail format: { count, fields, items, tablename, tableprefix, total }
+			tableName := r.URL.Path
+			tablePrefix := reflection.ExtractTableNameOnly(tableName)
+			fields := buildDetailFieldsFromRows(dbobjlist)
 			metaobj := map[string]interface{}{
-				"items":       dbobjlist,
 				"count":       fmt.Sprintf("%d", len(dbobjlist)),
+				"fields":      fields,
+				"items":       dbobjlist,
+				"tablename":   tableName,
+				"tableprefix": tablePrefix,
 				"total":       fmt.Sprintf("%d", total),
-				"tablename":   r.URL.Path,
-				"tableprefix": "gsql",
 			}
 			data, err := json.Marshal(metaobj)
 			if err != nil {
@@ -1079,6 +1084,49 @@ func getReplacementForBlankParam(sqlquery, param string) string {
 // 	return result
 // }
 
+// buildDetailFieldsFromRows builds a field metadata list from the column names and value types
+// of a raw SQL result set. Used when no model struct is available (funcspec raw queries).
+func buildDetailFieldsFromRows(rows []map[string]interface{}) []reflection.ModelFieldDetail {
+	if len(rows) == 0 {
+		return []reflection.ModelFieldDetail{}
+	}
+	first := rows[0]
+	fields := make([]reflection.ModelFieldDetail, 0, len(first))
+	for colName, val := range first {
+		dataType := inferGoType(val)
+		fields = append(fields, reflection.ModelFieldDetail{
+			Name:        colName,
+			DataType:    dataType,
+			SQLName:     colName,
+			SQLDataType: "",
+			SQLKey:      "",
+			Nullable:    val == nil,
+		})
+	}
+	return fields
+}
+
+// inferGoType returns a simple type name for a value, used for detail field metadata.
+func inferGoType(val interface{}) string {
+	if val == nil {
+		return "interface{}"
+	}
+	switch val.(type) {
+	case bool:
+		return "bool"
+	case int, int8, int16, int32, int64, uint, uint8, uint16, uint32, uint64:
+		return "int64"
+	case float32, float64:
+		return "float64"
+	case string:
+		return "string"
+	case []byte:
+		return "[]byte"
+	default:
+		return "interface{}"
+	}
+}
+
 // getIPAddress extracts the real IP address from the request
 func getIPAddress(r *http.Request) string {
 	if forwarded := r.Header.Get("X-Forwarded-For"); forwarded != "" {

pkg/funcspec/function_api_test.go

@@ -617,6 +617,91 @@ func TestSqlQueryList(t *testing.T) {
 				}
 			},
 		},
+		{
+			name:        "x-detailapi header returns detail format",
+			sqlQuery:    "SELECT * FROM myschema.myentity",
+			noCount:     false,
+			blankParams: false,
+			allowFilter: false,
+			headers:     map[string]string{"x-detailapi": "true"},
+			setupDB: func() *MockDatabase {
+				return &MockDatabase{
+					RunInTransactionFunc: func(ctx context.Context, fn func(common.Database) error) error {
+						db := &MockDatabase{
+							QueryFunc: func(ctx context.Context, dest interface{}, query string, args ...interface{}) error {
+								if strings.Contains(query, "COUNT") {
+									dest.(*struct{ Count int64 }).Count = 3
+									return nil
+								}
+								*dest.(*[]map[string]interface{}) = []map[string]interface{}{
+									{"id": float64(1), "name": "Alice"},
+									{"id": float64(2), "name": "Bob"},
+									{"id": float64(3), "name": "Carol"},
+								}
+								return nil
+							},
+						}
+						return fn(db)
+					},
+				}
+			},
+			expectedStatus: 200,
+			validateResp: func(t *testing.T, w *httptest.ResponseRecorder) {
+				var resp map[string]json.RawMessage
+				if err := json.Unmarshal(w.Body.Bytes(), &resp); err != nil {
+					t.Fatalf("expected JSON object, got: %s", w.Body.String())
+				}
+
+				for _, key := range []string{"count", "fields", "items", "tablename", "tableprefix", "total"} {
+					if _, ok := resp[key]; !ok {
+						t.Errorf("missing key %q in detail response", key)
+					}
+				}
+
+				var count, total string
+				json.Unmarshal(resp["count"], &count)
+				json.Unmarshal(resp["total"], &total)
+				if count != "3" {
+					t.Errorf("expected count %q, got %q", "3", count)
+				}
+				if total != "3" {
+					t.Errorf("expected total %q, got %q", "3", total)
+				}
+
+				var items []map[string]interface{}
+				if err := json.Unmarshal(resp["items"], &items); err != nil {
+					t.Fatalf("items is not an array: %v", err)
+				}
+				if len(items) != 3 {
+					t.Errorf("expected 3 items, got %d", len(items))
+				}
+
+				var fields []map[string]interface{}
+				if err := json.Unmarshal(resp["fields"], &fields); err != nil {
+					t.Fatalf("fields is not an array: %v", err)
+				}
+				if len(fields) == 0 {
+					t.Error("expected non-empty fields list")
+				}
+				for _, f := range fields {
+					for _, key := range []string{"name", "datatype", "sqlname", "sqldatatype", "sqlkey", "nullable"} {
+						if _, ok := f[key]; !ok {
+							t.Errorf("field %v missing key %q", f, key)
+						}
+					}
+				}
+
+				var tablename, tableprefix string
+				json.Unmarshal(resp["tablename"], &tablename)
+				json.Unmarshal(resp["tableprefix"], &tableprefix)
+				if tablename == "" {
+					t.Error("expected non-empty tablename")
+				}
+				if tableprefix == "" {
+					t.Error("expected non-empty tableprefix")
+				}
+			},
+		},
 		{
 			name:        "List query with noCount",
 			sqlQuery:    "SELECT * FROM users",