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Build a Simple VCL Application for Splunk Data

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

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

Creating a VCL Application for Splunk 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 Splunk from any application.

The following example populates a TDBGrid control.

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

    To authenticate requests, set the User, Password, and URL properties to valid Splunk credentials. The port on which the requests are made to Splunk is port 8089.

    The data provider uses plain-text authentication by default, since the data provider attempts to negotiate TLS/SSL with the server.

    If you need to manually configure TLS/SSL, see Getting Started -> Advanced Settings in the data provider help documentation.

  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.