Access LINE Data in Mule Applications Using the CData JDBC Driver

The CData API Driver for JDBC connects LINE data to Mule applications enabling read functionality with familiar SQL queries. The JDBC Driver allows users to easily create Mule applications to backup, transform, report, and analyze LINE data.

This article demonstrates how to use the CData API Driver for JDBC inside of a Mule project to create a Web interface for LINE data. The application created allows you to request LINE data using an HTTP request and have the results returned as JSON. The exact same procedure outlined below can be used with any CData JDBC Driver to create a Web interface for the hundreds of available data sources.

1. Create a new Mule Project in Anypoint Studio.
2. Add an HTTP Connector to the Message Flow.
3. Configure the address for the HTTP Connector.
4. Add a Database Select Connector to the same flow, after the HTTP Connector.
5. Create a new Connection (or edit an existing one) and configure the properties.
   • Set Connection to "Generic Connection"
   • Select the CData JDBC Driver JAR file in the Required Libraries section (e.g. cdata.jdbc.api.jar).
   • Set the URL to the connection string for LINE

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

     LINE API Profile Settings

     The LINE Messaging API uses Channel Access Token authentication. To obtain a Channel Access Token:

     1. Log in to the LINE Developers Console at https://developers.line.biz
     2. Select your provider and open your Messaging API channel.
     3. Navigate to the Messaging API tab.
     4. Under Channel access token, click Issue to generate a long-lived token.
     5. Copy the generated token.

     After obtaining your Channel Access Token, set the following connection properties:

     • AuthScheme: Set this to APIKey.

     Set the following in the ProfileSettings connection property:

     • APIKey: Set this to your LINE Channel Access Token.

     Built-in Connection String Designer

     For assistance in constructing the JDBC URL, use the connection string designer built into the LINE 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.

   • Set the Driver class name to cdata.jdbc.api.APIDriver.
   • Click Test Connection.
6. Set the SQL Query Text to a SQL query to request LINE data. For example:

   SELECT DeliveryDate, DeliveredCount FROM ReplyMessageDelivery WHERE DeliveryDate = '20240115'

   
7. Add a Transform Message Component to the flow.
8. Set the Output script to the following to convert the payload to JSON:

   %dw 2.0
   output application/json
   ---
   payload
           

   
9. To view your LINE data, navigate to the address you configured for the HTTP Connector (localhost:8081 by default): http://localhost:8081. The LINE data is available as JSON in your Web browser and any other tools capable of consuming JSON endpoints.

At this point, you have a simple Web interface for working with LINE data (as JSON data) in custom apps and a wide variety of BI, reporting, and ETL tools. Download a free, 30 day trial of the JDBC Driver for LINE and see the CData difference in your Mule Applications today.