GoLang Demos

CrossCompileDemo.ps1

$code = @"
package main

import (
	"fmt"
	"log"
	"net/http"
)

func handler(w http.ResponseWriter, r *http.Request) {
	fmt.Fprintf(w, "Hi there, I love %s!", r.URL.Path[1:])
}

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

Set-Content -Value $code -Path C:\Temp\webservice.go

$env:GOOS = 'windows'; $env:GOARCH = 'amd64'; go build -o C:\Temp\webservice_demo.exe C:\Temp\webservice.go
$env:GOOS = 'linux';   $env:GOARCH = 'amd64'; go build -o C:\Temp\webservice_demo_linux C:\Temp\webservice.go
$env:GOOS = 'linux';   $env:GOARCH = 'arm64'; go build -o C:\Temp\webservice_demo_arm C:\Temp\webservice.go
$env:GOOS = 'darwin';  $env:GOARCH = 'amd64'; go build -o C:\Temp\webservice_demo_mac C:\Temp\webservice.go

Get-ChildItem -Path C:\Temp\webservice_demo*

<#
    Directory: C:\Temp

Mode                LastWriteTime         Length Name
----                -------------         ------ ----
-a----        03.12.2019    17:54        7130624 webservice_demo.exe
-a----        03.12.2019    17:54        7049592 webservice_demo_arm
-a----        03.12.2019    17:54        7394885 webservice_demo_linux
-a----        03.12.2019    17:54        7436184 webservice_demo_mac
#>

helloworld.go

package main

import "fmt"

func main() {
    fmt.Println("hello world")
}

webservice.go

package main

import (
	"fmt"
	"log"
	"net/http"
)

func handler(w http.ResponseWriter, r *http.Request) {
	fmt.Fprintf(w, "Hi there, I love %s!", r.URL.Path[1:])
}

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

WebServiceDemo.ps1

$code = @"
package main

import (
	"fmt"
	"log"
	"net/http"
)

func handler(w http.ResponseWriter, r *http.Request) {
	fmt.Fprintf(w, "Hi there, I love %s!", r.URL.Path[1:])
}

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

Set-Content -Value $code -Path C:\Temp\webservice.go
Start-Process "http://localhost:8080/Go"
go run C:\Temp\webservice.go