Postman delivers the assets of a webpage
| src | ||
| .eslintrc.js | ||
| .gitignore | ||
| .projectile | ||
| LICENSE | ||
| package.json | ||
| README.md | ||
| tsconfig.json | ||
About
Postman delivers the assets of a web page.
The library is typically paired with a progress
bar that reports progress to the client.
Examples
Progress bar
The following example delivers fonts, scripts, images and stylesheets with the help of a progress bar. The progress bar is removed once the delivery is complete:
index.html
<!DOCTYPE html>
<html>
<head>
<title>Postman</title>
<script type="module" src="/postman.js"></script>
</head>
<body>
<div class="postman loader">
<progress value="0" max="100"></progress>
<span class="percentage"></span>
</div>
</div>
</body>
</html>
postman.js
import postman, { item } from "postman";
document.addEventListener("DOMContentLoaded", () => {
const bar = document.querySelector("progress");
const span = document.querySelector(".percentage");
const delivery = postman(
item.font("Kanit Regular", "url(/fonts/kanit-regular.ttf)"),
item.script("/js/app.js"),
item.image("/images/app.png"),
item.css("/css/app.css"),
item.progress((percent) => {
bar.value = percent;
span.innerText = `${percent}%`;
})
).deliver();
delivery.then((package) => {
/* Add page assets */
package.fonts.forEach((font) => documents.fonts.add(font));
package.scripts.forEach((script) => document.body.appendChild(script));
package.css.forEach((css) => document.head.appendChild(css));
/* Replace progress bar */
bar.remove();
span.remove();
});
});