How to connect to Alchemy Data from IntelliJ

The CData JDBC Driver for Alchemy enables you to access Alchemy as a JDBC data source, providing integration with rapid development tools in IDEs. This article shows how to use the data source configuration wizard to connect to Alchemy data in IntelliJ.

Create a JBDC Data Source for Alchemy

Follow the steps below to add the driver JAR and define connection properties required to connect to Alchemy data.

1. In the Data Sources window, right-click and then click Add Data Source -> DB Data Source.

2. In the Data Source Properties dialog that appears, the following properties are required:

   • JDBC Driver Files: Click the button next to this menu to add the JDBC Driver file cdata.jdbc.api.jar, located in the installation directory.
   • JDBC Driver Class: In this menu, select cdata.jdbc.api.APIDriver from the list.

   • Database URL: Enter the connection URL in the JDBC URL property. The URL must start with jdbc:api: and includes connection properties separated with semicolons.

     Start by setting the Profile connection property to the location of the Alchemy Profile on disk (e.g. C:\profiles\Alchemy.apip). Next, set the ProfileSettings connection property to the connection string for Alchemy (see below).

     Alchemy API Profile Settings

     Alchemy uses API key authentication. The API key is supplied in the request URL path. To obtain an API key:

     1. Sign in to your Alchemy account at https://dashboard.alchemy.com.
     2. Open an existing app or create a new one.
     3. Copy the app's API key from the API Key dialog.

     After obtaining your API key, set the following connection properties:

     • AuthScheme: Set this to APIKey.
     • Network: Optional. The blockchain network slug for NFT API requests (for example, eth-mainnet, base-mainnet, polygon-mainnet). Defaults to eth-mainnet.

     Set the following in the ProfileSettings connection property:

     • APIKey: Set this to your Alchemy app API key.

     Built-in Connection String Designer

     For assistance in constructing the JDBC URL, use the connection string designer built into the Alchemy JDBC Driver. Either double-click the JAR file or execute the jar file from the command-line.

     
     java -jar cdata.jdbc.api.jar
     

     Fill in the connection properties and copy the connection string to the clipboard.

     

     A typical JDBC URL is the following:

     jdbc:api:Profile=C:\profiles\Alchemy.apip;AuthScheme=APIKey;Network=eth-mainnet;ProfileSettings='APIKey=your_api_key';

Edit and Save Alchemy Data

To discover schema information, right-click the data source you just created and click Refresh Tables. To query a table, right-click it and then click Open Tables Editor.