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Viewing Elasticsearch Data in RAD Studio Data Explorer

How to view Elasticsearch data in RAD Studio Data Explorer using the CData FireDAC Components for Elasticsearch.

Embarcadero RAD Studio provides a development environment for Delphi and C++Builder applications. With the CData FireDAC Components for Elasticsearch, you gain access to live Elasticsearch data within RAD Studio, abstracting the data into tables, views, and stored procedures that can be used to both retrieve and update Elasticsearch data. This article will walk through connecting to Elasticsearch using the Data Explorer.

Connecting to Elasticsearch Data Using Data Explorer

You can create a simple application for displaying Elasticsearch data by utilizing the CData FireDAC Components for Elasticsearch and a new VCL Forms Application:

  1. Open the Data Explorer in RAD Studio and expand FireDAC.
  2. Right-click on CData Elasticsearch Data Source and click Add New Connection.

  3. Name the connection.
  4. Fill in the necessary connection parameters and click OK.

    Set the Server and Port connection properties to connect. To authenticate, set the User and Password properties, PKI (public key infrastructure) properties, or both. To use PKI, set the SSLClientCert, SSLClientCertType, SSLClientCertSubject, and SSLClientCertPassword properties.

    The data provider uses X-Pack Security for TLS/SSL and authentication. To connect over TLS/SSL, prefix the Server value with 'https://'. Note: TLS/SSL and client authentication must be enabled on X-Pack to use PKI.

    Once the data provider is connected, X-Pack will then perform user authentication and grant role permissions based on the realms you have configured.

  5. Back in the Data Explorer, expand the tables for the connection.
  6. Create a new VCL Forms application and drag a table (for example: Orders) onto the form.

  7. Select the OrdersTable object on the form and set the Active property to true.
  8. Right-click on the object, bind visually, and link everything (*) to a new control (TStringGrid).

  9. Arrange the TStringGrid on the form and run the application to see the Orders data.

 
 
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