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FileSystemFileHandle: getFile() method

Secure context: This feature is available only in secure contexts (HTTPS), in some or all supporting browsers.

The getFile() method of the FileSystemFileHandle interface returns a Promise which resolves to a File object representing the state on disk of the entry represented by the handle.

If the file on disk changes or is removed after this method is called, the returned File object will likely be no longer readable.

Syntax

js

getFile()

Parameters

None.

Return value

A Promise which resolves to a File object.

Exceptions

NotAllowedError DOMException

Thrown if the PermissionStatus.state is not granted in read mode.

Examples

The following asynchronous function presents a file picker and once a file is chosen, uses the getFile() method to retrieve the contents.

js

async function getTheFile() {
  // open file picker
  [fileHandle] = await window.showOpenFilePicker(pickerOpts);

  // get file contents
  const fileData = await fileHandle.getFile();
}

Specifications

Browser compatibility

Desktop Mobile
Chrome Edge Firefox Internet Explorer Opera Safari WebView Android Chrome Android Firefox for Android Opera Android Safari on IOS Samsung Internet
getFile 86 86 111 No 72 15.2 No 86 111 61 15.2 14.0

See also

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Licensed under the Creative Commons Attribution-ShareAlike License v2.5 or later.
https://developer.mozilla.org/en-US/docs/Web/API/FileSystemFileHandle/getFile