jfoclpf opened a new issue, #555:
URL: https://github.com/apache/cordova-plugin-file/issues/555
based on post from @breautek :
```javascript
resolveLocalFilesystemURL(cordova.file.applicationDirectory +
'www/json/anomalies.json', (fileEntry) => {
fileEntry.file((file) => {
let reader = new FileReader();
reader.onloadend = () => {
console.log('JSON String', reader.result);
};
reader.readAsText(file);
});
}, (error) => {
console.error('resolve error', error);
});
```
If you're using the WebViewAssetLoader, the latest version of this plugin as
a `fileEntry.toURL()` API that also produces a `http(s)://` friendly URLs for
standard browser APIs to consume.
_Originally posted by @breautek in
https://github.com/apache/cordova-plugin-file/issues/426#issuecomment-1386050453_
@breautek why reading a file with this plugin needs to be so painful ;) ?
Can't we have a shortcut, such as in NodeJS, simply
[readFile](https://www.geeksforgeeks.org/node-js-fs-readfile-method/)
I propose the creation of this shortcut to read a file (with Promises)
```js
export function readFile (path) {
return new Promise(function (resolve, reject) {
window.resolveLocalFilesystemURL(path, (fileEntry) => {
fileEntry.file((file) => {
const reader = new FileReader()
reader.onloadend = () => {
resolve(reader.result)
}
reader.readAsText(file)
reader.addEventListener('error', () => {
reject(Error(`Error occurred reading file: ${path}`))
})
})
}, (error) => {
reject(Error('resolve error', error))
})
})
}
```
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