Write Go methods, get a type safe client for your frontend.
Services are just Go objects with methods on the form func (s Service) Method(ctx context.Context, input Input) (Output, error).
By using Go's built in reflection these services can be accessed over HTTP in a type safe manner from a generated TypeScript client.
WARNING TurboRPC is pre-alpha software, use with caution.
package main
import (
"context"
"net/http"
"sync/atomic"
"github.com/turborpc/turborpc"
)
type Counter atomic.Int64
func (c *Counter) Add(ctx context.Context, delta int64) (int64, error) {
return (*atomic.Int64)(c).Add(delta), nil
}
func main() {
rpc := turborpc.NewServer(turborpc.WithServerJavaScriptClient())
_ = rpc.Register(&Counter{})
http.Handle("/rpc", rpc)
http.HandleFunc("/", func(w http.ResponseWriter, r *http.Request) {
w.Write([]byte(`
<!DOCTYPE html>
<html>
<head>
<title>Counter</title>
<script src="/rpc"></script>
</head>
<body>
<strong id="count"></strong>
<button id="plus">+</button>
<button id="minus">-</button>
<script>
const rpc = new Counter("/rpc");
const setCount = (v) => document.getElementById("count").innerText = v;
document.getElementById("plus").onclick = () => rpc.add(1).then(setCount);
document.getElementById("minus").onclick = () => rpc.add(-1).then(setCount);
rpc.add(0).then(setCount);
</script>
</body>
`))
})
http.ListenAndServe(":3000", nil)
}