Initial upload

public/main.js

@@ -0,0 +1,30 @@
+async function init() {
+	let rustApp = null
+
+	try {
+		rustApp = await import("../pkg")
+	} catch (e) {
+		console.error(e)
+		return
+	}
+
+	console.log(rustApp)
+
+	const input = document.getElementById("upload")
+	const fileReader = new FileReader()
+
+	fileReader.onloadend = () => {
+		const base64 = fileReader.result.replace(
+			/^data:image\/(png|jpeg|jpg);base64,/,
+			""
+		)
+		let img_data_url = rustApp.grayscale(base64)
+		document.getElementById("new-img").setAttribute("src", img_data_url)
+	}
+
+	input.addEventListener("change", () => {
+		fileReader.readAsDataURL(input.files[0])
+	})
+}
+
+init()