add http caller example

examples/http-caller/main.go

@@ -0,0 +1,35 @@
+package main
+
+import (
+	"context"
+	"log"
+
+	"github.com/vedhavyas/go-wasm"
+)
+
+func main() {
+	b, err := wasm.BridgeFromFile("test", "./examples/http/main.wasm", nil)
+	if err != nil {
+		panic(err)
+	}
+
+	ctx, canc := context.WithCancel(context.Background())
+	defer canc()
+	init := make(chan error)
+	go b.Run(ctx, init)
+	if err := <-init; err != nil {
+		panic(err)
+	}
+
+	res, err := b.CallFunc("call", []interface{}{"https://google.com"})
+	if err != nil {
+		panic(err)
+	}
+
+	str, err := wasm.String(res)
+	if err != nil {
+		panic(err)
+	}
+
+	log.Println("Result:", str)
+}

examples/http/main.go

@@ -0,0 +1,29 @@
+// +build js,wasm
+
+package main
+
+import (
+	"fmt"
+	"net/http"
+	"syscall/js"
+)
+
+func call(this js.Value, args []js.Value) interface{} {
+	res, err := http.Get(args[0].String())
+	if err != nil {
+		panic(err)
+	}
+
+	f := fmt.Sprintln(res.Status, res.StatusCode, res.ContentLength)
+	err = res.Body.Close()
+	if err != nil {
+		panic(err)
+	}
+
+	return f
+}
+
+func main() {
+	js.Global().Set("call", js.FuncOf(call))
+	select {}
+}