Have you had experience implementing or using distributed transactions in your projects?

Distributed transactions are a mechanism to ensure data consistency when performing operations that involve multiple independent systems or services. In my experience with Go, I have encountered the need to implement such scenarios, for example, when interacting with multiple databases or microservices.

Typically, patterns such as two-phase commit (2PC) or sagas are used to implement distributed transactions. In Go, you can use libraries and tools that support these approaches or implement compensation logic manually.

An example of a simplified saga implementation in Go:

// Example function that performs two operations with compensation on error
func executeSaga() error {
    err := operationA()
    if err != nil {
        return err
    }
    err = operationB()
    if err != nil {
        compensateA() // rollback operation A
        return err
    }
    return nil
}

This approach allows ensuring data integrity without strict locks, which is important in distributed systems.