Displaying Web Services Data Using Process Points

You can use process points in GraphWorX to access individual properties of a web methods's result. It offers a quick and convenient way to display scalar values and enables using Web Services data with clone dynamics.

The following procedure uses the sample National Weather Service REST service that is installed with GENESIS.

To display Web Services data using process points:

  1. Open GraphWorX in the configuration mode (default).

  2. On the Dynamics ribbon, select Process Point, and then drag the mouse diagonally across the canvas to make a rectangle for inserting the process point. The process point is added to the screen and in the Dynamics pane on the right, a property grid is displayed with the Data Source box pre-selected.

  3. In Data Source, click to open Data Browser.

  4. Go to Data Connectivity > Web Services, expand the desired folder and web method (National Weather Service > Forecast), expand the web method's return schema (0), select the desired property (temperature), and then click OK.

    The tag name in the Data Source box references the item at index [0] (first item) in the array returned from the REST API. To visualize the data for a different item in the array, enter the index of the item between the square brackets.

    ws:Sample Web Services.National Weather Service.Forecast<@gridX=72, @gridY=76, @grid='BOX'>[0].temperature

  5. In the upper right corner of the GraphWorX screen, click , or press CTRL+M. GraphWorX switches to the runtime mode and the data from the selected property is displayed in the process point.