Added meta operation.

pkg/restheadspec/handler.go

@@ -146,13 +146,25 @@ func (h *Handler) Handle(w common.ResponseWriter, r common.Request, params map[s
 			h.handleRead(ctx, w, "", options)
 		}
 	case "POST":
-		// Create operation
+		// Read request body
 		body, err := r.Body()
 		if err != nil {
 			logger.Error("Failed to read request body: %v", err)
 			h.sendError(w, http.StatusBadRequest, "invalid_request", "Failed to read request body", err)
 			return
 		}
+
+		// Try to detect if this is a meta operation request
+		var bodyMap map[string]interface{}
+		if err := json.Unmarshal(body, &bodyMap); err == nil {
+			if operation, ok := bodyMap["operation"].(string); ok && operation == "meta" {
+				logger.Info("Detected meta operation request for %s.%s", schema, entity)
+				h.handleMeta(ctx, w, schema, entity, model)
+				return
+			}
+		}
+
+		// Not a meta operation, proceed with normal create/update
 		var data interface{}
 		if err := json.Unmarshal(body, &data); err != nil {
 			logger.Error("Failed to decode request body: %v", err)
@@ -229,6 +241,21 @@ func (h *Handler) HandleGet(w common.ResponseWriter, r common.Request, params ma
 	h.sendResponse(w, metadata, nil)
 }
 
+// handleMeta processes meta operation requests
+func (h *Handler) handleMeta(ctx context.Context, w common.ResponseWriter, schema, entity string, model interface{}) {
+	// Capture panics and return error response
+	defer func() {
+		if err := recover(); err != nil {
+			h.handlePanic(w, "handleMeta", err)
+		}
+	}()
+
+	logger.Info("Getting metadata for %s.%s via meta operation", schema, entity)
+
+	metadata := h.generateMetadata(schema, entity, model)
+	h.sendResponse(w, metadata, nil)
+}
+
 // parseOptionsFromHeaders is now implemented in headers.go
 
 func (h *Handler) handleRead(ctx context.Context, w common.ResponseWriter, id string, options ExtendedRequestOptions) {