Senior

Have you worked with architecture? Describe a couple of architectural solutions.

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Answer from AI

Yes, I have worked with application architecture in Go. Here are some examples of architectural solutions:

Microservices Architecture — breaking down a monolithic application into independent services with clearly defined APIs (usually REST or gRPC). This allowed for scaling individual components and simplified maintenance.
Event-driven Architecture — using channels and message brokers (such as Kafka or NATS) for asynchronous communication between services. This increased fault tolerance and reduced coupling.
Clean Architecture / Hexagonal Architecture — dividing code into layers: interfaces, business logic, infrastructure. This facilitated testing and replacing components.
Worker Pool Pattern — creating a pool of goroutines with a limit to handle a large number of tasks concurrently, controlling the load.

Example of a simple worker pool:

 tasks := make(chan Task)

func worker(id int, tasks <-chan Task) {
    for task := range tasks {
        process(task)
    }
}

func main() {
    for i := 0; i < 5; i++ {
        go worker(i, tasks)
    }

    for _, task := range taskList {
        tasks <- task
    }
    close(tasks)
}

Depending on the requirements, I choose the appropriate architecture, considering scalability, fault tolerance, and ease of maintenance.

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