Inter-service communication in Go is handled by standard libraries like net/http for HTTP requests and gRPC for high-performance RPC, often orchestrated via environment variables or service discovery. Use the net/http client to send requests to other services running on different ports or hosts.
resp, err := http.Get("http://service-b:8080/api/data")
if err != nil {
log.Fatal(err)
}
defer resp.Body.Close()