Tell about your experience in writing microservices: how did you come to it, what was the overall task?.

My experience in writing microservices began with the need to scale and simplify the support of a large monolithic application. The overall goal was to break down the system into independent services, each responsible for its own business logic and capable of developing and deploying separately. This allowed for increased fault tolerance, faster development, and easier integration with other systems.

For example, I implemented services in Go that interacted via REST API and message queues (such as Kafka). One microservice was responsible for authentication, another for payment processing, and a third for user management.

Here's a simple example of an HTTP service in Go:

package main

import (
    "fmt"
    "net/http"
)

func handler(w http.ResponseWriter, r *http.Request) {
    fmt.Fprintf(w, "Hello from microservice!")
}

func main() {
    http.HandleFunc("/", handler)
    http.ListenAndServe(":8080", nil)
}

This approach allowed for easy scaling of individual parts of the system and quick implementation of new features.