update grap param

main.go

@@ -130,13 +130,20 @@ func main() {
 			UserName: input.Username,
 		}
 
-		if _, ok := input.Metadata[graphrag.DocNameKey]; !ok {
+		resDocName :=""
+
+		if v, ok := input.Metadata[graphrag.DocNameKey]; !ok {
 			// Generate random docName.
 			docName, err := graphrag.GenerateRandomDocName(8)
 			if err != nil {
 				return "", fmt.Errorf("generate random docName for document  %w", err)
 			}
 			input.Metadata[graphrag.DocNameKey] = docName
+			resDocName = docName
+		}else{
+			if str, isString := v.(string); isString {
+				resDocName = str
+			} 
 		}
 
 		doc := ai.DocumentFromText(input.Content, input.Metadata)
@@ -147,7 +154,7 @@ func main() {
 		if err != nil {
 			return "", fmt.Errorf("index document: %w", err)
 		}
-		return "Document indexed successfully", nil
+		return fmt.Sprintf("Document indexed successfully, docname %s",resDocName), nil
 	})
 
 	// Define a simple flow that generates jokes about a given topic