How to select files within a directory and capture them relative path in a state-CodePudding

I am looking for a way to select files through the file dialogue. The file selector needs to:

be restricted to only directory selection
capture all selected files in a single callback so that they can be set to a state
include the relative path for all files in the file list

I've tried the file selector components from a few libraries such as antd, react-dropzone, @rpldy/uploady, react-file-reader, and react-file-picker already, but none seem to be able to fulfill all three requirements.

CodePudding user response：

Not sure if there is a React library for that, but you can take a look at the File System Access API. It only works in Chrome, though, but maybe that <input type="file" webkitdirectory> works in other browsers and would be enough for your needs.

CodePudding user response：

You can achieve this with Uploady.

When using the webkitdirectory flag for the file input element, you do get the webkitRelativePath property in all browsers (at least chrome & firefox) per the spec.

Now, to get the list of files, you'd use the useBatchAddListener hook.

import React, { useState } from "react";
import Uploady, { useBatchAddListener } from "@rpldy/uploady";
import UploadButton from "@rpldy/upload-button";

const MyUploadButton = ({ addFilesToState }) => {
  useBatchAddListener((batch) => {
    addFilesToState(batch.items.map(({ file }) => file));
  });

  return <UploadButton>Upload Files</UploadButton>;
};

const Uploader = () => {
  const [_, setFiles] = useState([]);

  return (
    <MyUploadButton
      addFilesToState={(files) => setFiles((prev) => [...prev, ...files])}
    />
  );
};

export default function App() {
  return (
    <Uploady destination={{ url: "[upload-url]" }} webkitdirectory="true" debug>
      <div className="App">        
        <Uploader />
      </div>
    </Uploady>
  );
}

See sandbox.