DataBind Controls to eBay Analytics Data in Delphi

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eBay Analytics ODBC Driver

The eBay Analytics ODBC Driver is a powerful tool that allows you to connect with live data from eBay Analytics, directly from any applications that support ODBC connectivity.

Access eBay Analytics data like you would a database, including eBay Analytics Traffic, Customers, Sellers, etc. through a standard ODBC Driver interface.



DataBind to eBay Analytics data in Delphi with standard data access components and controls.

The CData ODBC Driver for eBay Analytics supports the ODBC standard to enable integration of live eBay Analytics data with visual form designers and other rapid development tools in Delphi. The ODBC driver simplifies data access strategies for applications that share a single codebase like Delphi by providing a single API for database development. This article shows how to how to connect to eBay Analytics data and query data from a simple visual component library (VCL) application, as well as from Delphi code.

Create a FireDAC Connection to eBay Analytics Data

If you have not already, first specify connection properties in an ODBC DSN (data source name). This is the last step of the driver installation. You can use the Microsoft ODBC Data Source Administrator to create and configure ODBC DSNs.

You can authenticate to eBay Analytics only via the OAuth 2 authentication method. The eBay Analytics API requires an access token created with the authorization code grant flow to authorize the requests.

You can follow the guide in the Help documentation for a step by step guide on how to authenticate using the OAuth 2 protocol.

You can then follow the steps below to use the Data Explorer to create a FireDAC connection to eBay Analytics data.

  1. In a new VCL Forms application, expand the FireDAC node in the Data Explorer.
  2. Right-click the ODBC Data Source node in the Data Explorer.
  3. Click Add New Connection.
  4. Enter a name for the connection.
  5. In the FireDAC Connection Editor that appears, set the DataSource property to the name of the ODBC DSN for eBay Analytics.

Create VCL Applications with Connectivity to eBay Analytics Data

Follow the procedure below to start executing queries to eBay Analytics data from a simple VCL application that displays the results of a query in a grid.

  1. Drop a TFDConnection component onto the form and set the following properties:

    • ConnectionDefName: Select the FireDAC connection to eBay Analytics data.
    • Connected: Select True from the menu and, in the dialog that appears, enter your credentials.
  2. Drop a TFDQuery component onto the form and set the properties below:

    • Connection: Set this property to the TFDConnection component, if this component is not already specified.
    • SQL: Click the button in the SQL property and enter a query. For example:

      SELECT ListingName, ClickThroughRate FROM TrafficReportByListing WHERE ListingId = '201284405428'
    • Active: Set this property to true.
  3. Drop a TDataSource component onto the form and set the following property:

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

    • DataSource: Select the name of the TDataSource.
  5. Drop a TFDGUIxWaitCursor onto the form — this is required to avoid a run-time error.

Execute Commands to eBay Analytics with FireDAC Components

You can use the TFDConnection and TFQuery components to execute queries to eBay Analytics data. This section provides eBay Analytics data-specific examples of executing queries with the TFQuery component.

Connect to eBay Analytics Data

To connect to the data source, set the Connected property of the TFDConnection component to true. You can set the same properties from code:

FDConnection1.ConnectionDefName := 'myebayanalytics'; FDConnection1.Connected := true;

Create Parameterized Queries

Parameterized resources can improve performance: Preparing statements is costly in system resources and time. The connection must be active and open while a statement is prepared. By default, FireDAC prepares the query to avoid recompiling the same query over and over. To disable statement preparation, set ResourceOptions.DirectExecute to True; for example, when you need to execute a query only once.

Execute a Query

To execute a query that returns a result set, such as a select query, use the Open method. The Open method executes the query, returns the result set, and opens it. The Open method will return an error if the query does not produce a result set.

FDQuery1.Open('select * from TrafficReportByListing where ListingId = :ListingId',['201284405428']);