go-to-node
A simple API to inter-process communicating between Go and NodeJS.
Quick start
Go to Node
main.go:
package main
import (
"fmt"
"os"
"os/exec"
"github.com/200hash6955/go-to-node"
)
func main() {
cmd := exec.Command("node", "child.js")
cmd.Stdout = os.Stdout
cmd.Stderr = os.Stderr
channel, err := go2node.ExecNode(cmd)
if err != nil {
panic(err)
}
defer cmd.Process.Kill()
// Node will output: {hello: "node"}
channel.Write(&go2node.NodeMessage{
Message: []byte(`{"hello": "node"}`),
})
// Golang will output: {"hello":"golang"}
msg, err := channel.Read()
if err != nil {
panic(err)
}
fmt.Println(string(msg.Message))
// Wait node child process exit
cmd.Process.Wait()
}
child.js:
process.on('message', function (msg, handle) {
console.log(msg);
process.exit(0);
});
process.send({hello: 'golang'});
Run go run main.go to test.
Output:
{"hello":"golang"}
{ hello: 'node' }
Node to Golang
main.js:
const child_process = require('child_process');
let child = child_process.spawn('go', ['run', 'gochild.go'], {
stdio: [0, 1, 2, 'ipc']
});
child.on('close', (code) => {
process.exit(code);
});
child.send({hello: "child"});
child.on('message', function(msg, handle) {
if(msg.hello === "parent") {
console.log(msg);
process.exit(0);
}
process.exit(1);
});
gochild.go:
package main
import (
"fmt"
"github.com/200hash6955/go-to-node"
)
func main() {
channel, err := go2node.RunAsNodeChild()
if err != nil {
panic(err)
}
// Golang will output: {"hello":"child"}
msg, err := channel.Read()
if err != nil {
panic(err)
}
fmt.Println(string(msg.Message))
// Node will output: {"hello":'parent'}
err = channel.Write(&go2node.NodeMessage{
Message: []byte(`{"hello":"parent"}`),
})
if err != nil {
panic(err)
}
}
Run node ./main.js to test.
Output:
{"hello":"child"}
{ hello: 'parent' }
