Initial commit

Signed-off-by: Vincent Batts <vbatts@hashbangbash.com>

cmd/wasm/main.go

@@ -0,0 +1,46 @@
+//go:build js && wasm
+
+package main
+
+import (
+	"encoding/json"
+	"fmt"
+	"syscall/js"
+)
+
+func main() {
+	js.Global().Set("formatJSON", jsonWrapper())
+	fmt.Println("loaded golang wasm")
+	<-make(chan struct{})
+}
+
+func prettyJson(input string) (string, error) {
+	var raw any
+	if err := json.Unmarshal([]byte(input), &raw); err != nil {
+		return "", err
+	}
+
+	pretty, err := json.MarshalIndent(raw, "", "  ")
+	if err != nil {
+		return "", err
+	}
+
+	return string(pretty), nil
+}
+
+func jsonWrapper() js.Func {
+	jsonFunc := js.FuncOf(func(this js.Value, args []js.Value) any {
+		if len(args) != 1 {
+			return "Invalid no of arguments passed"
+		}
+		inputJSON := args[0].String()
+		fmt.Printf("input %s\n", inputJSON)
+		pretty, err := prettyJson(inputJSON)
+		if err != nil {
+			fmt.Printf("unable to convert to json %s\n", err)
+			return err.Error()
+		}
+		return pretty
+	})
+	return jsonFunc
+}