modify default content type

core/http/Server.go

@@ -3,6 +3,7 @@ package http
 import (
 	"context"
 	"encoding/json"
+	"fmt" // Added for fmt.Fprintf
 	"net"
 	"net/http"
 	"time"
@@ -279,21 +280,37 @@ func writeResponse(w http.ResponseWriter, result any) {
 		result = httpResp.Body // Set result to body for processing below
 	}
 
-	switch res := result.(type) {
-	case string:
-		// String result - default to plain text
-		setContentTypeIfMissing(w, contentTypePlain)
-		w.Write([]byte(res))
-	default:
-		// All other types - convert to JSON
+	// Check if it's a map (table) or array - return as JSON
+	isJSON := false
+
+	switch result.(type) {
+	case map[string]any, []any, []float64, []string, []int:
+		isJSON = true
+	}
+
+	if isJSON {
 		setContentTypeIfMissing(w, contentTypeJSON)
-		data, err := json.Marshal(res)
+		data, err := json.Marshal(result)
 		if err != nil {
 			logger.Error("Failed to marshal response: %v", err)
 			http.Error(w, "Internal Server Error", http.StatusInternalServerError)
 			return
 		}
 		w.Write(data)
+		return
+	}
+
+	// All other types - convert to plain text
+	setContentTypeIfMissing(w, contentTypePlain)
+
+	switch r := result.(type) {
+	case string:
+		w.Write([]byte(r))
+	case []byte:
+		w.Write(r)
+	default:
+		// Convert any other type to string
+		fmt.Fprintf(w, "%v", r)
 	}
 }