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https://github.com/mizchi/trans-loader
webpack-less frontend with service-worker
https://github.com/mizchi/trans-loader
babel jspm service-worker trans-loader typescript
Last synced: about 2 months ago
JSON representation
webpack-less frontend with service-worker
- Host: GitHub
- URL: https://github.com/mizchi/trans-loader
- Owner: mizchi
- Created: 2018-06-28T09:56:59.000Z (about 6 years ago)
- Default Branch: master
- Last Pushed: 2018-09-02T08:22:33.000Z (about 6 years ago)
- Last Synced: 2024-04-23T21:06:59.570Z (5 months ago)
- Topics: babel, jspm, service-worker, trans-loader, typescript
- Language: TypeScript
- Homepage:
- Size: 4.25 MB
- Stars: 100
- Watchers: 2
- Forks: 4
- Open Issues: 3
-
Metadata Files:
- Readme: README.md
Awesome Lists containing this project
- awesome-list - trans-loader - less frontend with service-worker | mizchi | 101 | (TypeScript)
README
# trans-loader
You don't need **npm** and **bundler**.
You need just a `service-worker` script.
## What this script does...
- Transform `.js` with babel on service-worker
- Transform `.ts` and `.tsx` with typescript on service-worker
- Load modules from [jspm.io](https://jspm.io) and cache them on serviceWorker.
## CAUTION!
- **development only**. Do not use for production.
- It works only for modern browser(ES2015+ and ES Modules ready).
## How to use
Put [dist/sw.js](/dist/sw.js) as `/sw.js` on your app root.
```sh
wget https://raw.githubusercontent.com/mizchi/trans-loader/master/dist/sw.js
```
Rewrite your entry js like below.
Before
```html
```
After
```html
(async () => {
const run = () => import('/src/main.js') // your entry js
if (navigator.serviceWorker.controller) {
run()
} else {
const reg = await navigator.serviceWorker.register("/sw.js");
await navigator.serviceWorker.ready;
navigator.serviceWorker.addEventListener('controllerchange', run)
}
})()
```
See [working demo](/demo)
## Example 1: Compiled with babel
```js
// /your-entry.js
import React from "react";
import ReactDOM from "react-dom";
ReactDOM.render(
Hello
, document.querySelector(".root"));
```
## Example 2: Load relative file
```
index.html
sw.js
src/main.js
src/components/App.js
```
```js
// main.js
import React from "react";
import ReactDOM from "react-dom";
import App from "./components/App";
ReactDOM.render(, document.querySelector(".root"));
```
## Example 3: Load typescript
```
index.html
sw.js
src/main.js
src/components/App.tsx
```
```js
// main.js
import React from "react";
import ReactDOM from "react-dom";
import App from "./components/App";
ReactDOM.render(, document.querySelector(".root"));
```
## Example 4: Loading with `package.json`'s version
```
index.html
sw.js
package.json
src/main.js
```
`package.json`
```
{
"dependencies": {
"react": "16.4.1",
"react-dom": "16.4.1"
}
}
```
Log
```
trans-loader: Cache https://dev.jspm.io/[email protected]
trans-loader: Cache https://dev.jspm.io/[email protected]
```
## How it works
### Rewrite js content with service-worker proxy
Compile content with babel/typescript by extname
```js
// ...
self.addEventListener("fetch", (event: any) => {
if (event.request.url.indexOf("dev.jspm.io") > -1) {
// cache jspm result
event.respondWith(useCacheOrLoad(event.request));
} else if (event.request.url.indexOf("/src/") > -1) {
// transform
console.log("trans-loader: with-transform", event.request.url);
event.respondWith(respondWithTransform(event.request.url));
}
});
```
### Rewrite to dev.jspm.io
Rewrite npm module path to `dev.jspm.io`. See [this code](/src/rewriteModulePath.js)
```js
// before
import React from "react";
// after
import React from "https://dev.jspm.io/react";
```
### Add valid extname
- Try to access `.js, .mjs, .ts, .tsx, /index.js, /index.ts, /index.tsx`
- return file with non-error endpoint
## LICENSE
MIT