How to automatically increase the node size when text exceeds the node size

let diagram: Diagram = new Diagram({
        width: '100%', height: 600, nodes: nodes, connectors: connectors,
        constraints: DiagramConstraints.Default | (DiagramConstraints.Bridging | DiagramConstraints.LineRouting),
        getNodeDefaults: getNodeDefaults,
        getConnectorDefaults: getConnectorDefaults,
        created: onCreated,
      // to automatically increase the node size when text exceeds the node size
        textEdit: function () {
            var nodes = diagram.selectedItems.nodes[0];
            setTimeout(() => {
              let id = nodes.id;
              let node = nodes;
              let annotation = node.annotations[0].id;
              let bounds = document
                .getElementById(node.id + '_' + annotation)
                .getBoundingClientRect();
              if (bounds.height > node.height) {
                node.height = bounds.height + 15;
                diagram.dataBind();
              } else if (bounds.height < 50) {
                node.height = 50;
                diagram.dataBind();
              } else {
                node.height = bounds.height + 15;
                diagram.dataBind();
              }
              if (bounds.width > node.width) {
                node.width = bounds.width + 15;
                diagram.dataBind();
              } else if (bounds.width < 50) {
                node.width = 50;
                diagram.dataBind();
              } else {
                node.width = bounds.width + 15;
                diagram.dataBind();
              }
              diagram.doLayout(); 
           }, 50);
          },
    });

• The selected node is stored in a variable “node”. The height and width of the annotation are obtained from the selected node. The bounds of the node’s annotation are stored in the variable “bounds”.
• If the annotation’s height is greater than the node’s height, then the node’s height is assigned with the value of annotation’s height plus 15. If the annotation’s width is greater than the node’s width, then the node’s width is assigned with the value of annotation’s width plus 15. A value of 15 is added to annotation’s height or width to prevent the annotation from getting congested in the node.
• If the height and width of the annotation are lesser than 50, then the height and width of the node are set to 50.