Outbox pattern is ensuring data changes made by a microservice are eventually propagated to other

microservices.

▪ Whenever a microservice updates data in its database, it also writes a record to the outbox table with the details of the change.

▪ CDC can then be used to monitor the outbox table for new records, extract the data changes that propagated to the target microservices to be kept up-to-date with the data.

▪ Using CDC with the Outbox pattern allows microservices to decouple their data updates from the process of propagating those updates to other microservices.

▪ This can make it easier to scale and maintain a microservices architecture.

▪ Each microservice can focus on its own data updates and let CDC handle the synchronization of data between services.

https://towardsdatascience.com/distributed-transactions-cdc-event-sourcing-outbox-cqrs-patterns-ee0cf70339b1