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Build a Simple VCL Application for DocuSign Data

How to build a simple VCL Application to view DocuSign data in RAD Studio using the CData FireDAC Components for DocuSign.

Embarcadero RAD Studio provides a development environment for Delphi and C++Builder applications. With the CData FireDAC Components for DocuSign, you gain access to live DocuSign data within RAD Studio, abstracting the data into tables, views, and stored procedures that can be used to retrieve DocuSign data. This article will walk through connecting to DocuSign and creating a simple VCL application with the Form Designer.

Creating a VCL Application for DocuSign Data

The following instructions show how to use the Form Designer to create a simple VCL Forms application that shows the basic FireDAC objects needed to connect to DocuSign from any application.

The following example populates a TDBGrid control.

  1. Create a new VCL Forms Application.
  2. Drop a TFDPhysDocuSignDriverLink and TFDConnection object onto the form.
  3. Double-click the TFDConnection object. The FireDAC Connection Editor is displayed. Select "CData.DocuSign" in the DriverId menu and configure the connection properties.

    To connect to DocuSign, set the following connection properties:

    • UseSandbox: indicates whether current user account is sandbox or not (FALSE by default)
    • AccountId (optional): set it in the connection string if you have access to multiple Account Ids

    Authenticating to DocuSign

    DocuSign uses the OAuth authentication standard. To authenticate using OAuth, you will need to create an app to obtain the OAuthClientId, OAuthClientSecret, and CallbackURL connection properties. See the Help documentation more information.

  4. Drop a TFDQuery object onto the form and set the properties below:

    • Connection - Set this property to the TFDConnection object, if this object is not already specified.
    • SQL - Click the button in the SQL property and enter a query.
    • Active - Set this property to true.
  5. Drop a TDataSource object onto the form and set the following property:

    • DataSet - In the menu for this property, select the name of the TFDQuery object.
  6. Drop a TDBGrid control onto the form and set the following property:

    • DataSource - Select the name of the TDataSource.
  7. Drop a TFDGUIxWaitCursor onto the form. This is required to avoid a run-time error.

You now have an executable application that displays the results of the SQL Query set in the TFDQuery object.