Cannot run my go program as a service on Windows server 2019 - windows

Question

I want to run a REST API written in Go as a Windows service, but when I try to start the service I get an error.
This is how I install the service with Powershell:
$params = #{
Name = "AHS"
BinaryPathName = '"C:\Temp\ah.exe --service"'
DisplayName = "AH Service"
StartupType = "Manual"
Description = "This is a test service."
}
New-Service #params
This is how I start the service:
Start-Service "AHS"
This is the error I get:
At C:\Windows\Temp\script-62cfbba7-a4ef-b024-51ce-ba0b6804cbd7.ps1:10 char:1
+ Start-Service "AHS"
+ ~~~~~~~~~~~~~~~~~~~
+ CategoryInfo : OpenError: (System.ServiceProcess.ServiceController:ServiceController) [Start-Service],
ServiceCommandException
+ FullyQualifiedErrorId : CouldNotStartService,Microsoft.PowerShell.Commands.StartServiceCommand
This is a simplified version of the code just to sort out running it as a service:
package main
import (
"fmt"
"os"
"time"
"github.com/kardianos/service"
)
const serviceName = "AHS"
type program struct{}
func (p program) Start(s service.Service) error {
fmt.Println(s.String() + " started")
go p.run()
return nil
}
func (p program) Stop(s service.Service) error {
fmt.Println(s.String() + " stopped")
return nil
}
func (p program) run() {
str := "hello, world \n"
fileName := "log.txt"
for {
err := writeToFile(str, fileName)
if err != nil {
fmt.Println(err)
}
time.Sleep(1 * time.Second)
}
}
func main() {
serviceConfig := &service.Config{
Name: serviceName,
}
prg := &program{}
s, err := service.New(prg, serviceConfig)
if err != nil {
fmt.Println("Cannot create the service: " + err.Error())
}
err = s.Run()
if err != nil {
fmt.Println("Cannot start the service: " + err.Error())
}
}
func writeToFile(str string, fileName string) error {
file, err := os.Create(fileName)
if err != nil {
if !os.IsExist(err) {
return err
}
}
defer file.Close()
_, err = file.WriteString(str)
if err != nil {
return err
}
return nil
}