Скачать или смотреть How to Write Debezium Connector Configuration and Listener for MongoDB in Spring Boot

Learn how to configure a `Debezium connector` and `listener` in `Spring Boot` for MongoDB, allowing you to capture change data in JSON format.
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How to Write Debezium Connector Configuration and Listener for MongoDB in Spring Boot

In the world of data-driven applications, the ability to track changes to data in real-time is increasingly vital. Debezium, a distributed platform for change data capture (CDC), provides a way to stream changes from databases. In this guide, we will explore how to set up a Debezium connector configuration and a listener for MongoDB within a Spring Boot application, ensuring that the change data payload is available in JSON format.

Understanding the Challenge

When working with change data capture in MongoDB applications, one common issue developers face is how to correctly configure the Debezium connector and the listener, particularly dealing with how data is presented when changes occur. A common request is for sample code that effectively handles this scenario.

Setting Up Your Spring Boot Application

1. Creating the Debezium Connector Configuration

First, you need to define a configuration class for the Debezium connector. Below is an example that outlines how to set up the DebeziumConnectorConfig using the required properties.

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2. Implementing the Debezium Listener

Next, we need a listener that will handle the change events. The DebeziumListener class below logs changes in the database and captures the payload as a JSON structure.

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Common Issues and Solutions

Correcting Host Declaration

A common mistake in the configuration is incorrectly specifying the mongodb.hosts property. Ensure you use a colon (:) instead of a comma (,):

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Conclusion

By following this guide, you can set up a Debezium connector and a listener for MongoDB in your Spring Boot application. This allows you to effectively capture change data and present it in a structured JSON format.

Armed with this knowledge, you can now dive deeper into change data capture and enhance your applications further!