How to remove file from react-dropzone?

Question

Hope you help me with this, I'm using the useDropzone hook from react-dropzone and I don't know how to make a remove file button for each file.

How can I remove a single file?

This is my code:

function DragFile(props) {
  const { acceptedFiles, rejectedFiles, getRootProps, getInputProps } = useDropzone({
    accept: 'image/jpeg, image/png, .pdf',
    maxSize: 3000000,
    multiple: true
  });

  const acceptedFilesItems = acceptedFiles.map(file => (
    <Col xs={12} md={4} key={file.path} className="card-file">
      <div className="file-extension">{file.path.substring(file.path.indexOf('.') + 1)}</div>
      <span>{file.path.substring(0, file.path.indexOf('.'))} <small>{(file.size / 1000).toFixed(2)} Kb</small></span>
      <button className="delete">DeleteButton</button>
    </Col>
  ));

  const rejectedFilesItems = rejectedFiles.map(file => (
    <li key={file.path}>
      {file.path.substring(0, file.path.indexOf('.'))} - {file.size / 1000} Kb
    </li>
  ));

  return (
    <div>
      <div {...getRootProps({ className: 'dropzone drag-n-drop' })}>
        <input id="file-claim" {...getInputProps()} />
        <img src={uploadSrc} alt="Subir archivo" />
        <p>Drag files here (PDF, JPG, PNG).</p>
      </div>
      <Row className="accepted-files">
        {acceptedFilesItems}
      </Row>
    </div>
  );
}

export default DragFile;

Answer 1

You've probably already got this working but you just need to attach this to the click handler:

const remove = file => {
  const newFiles = [...files];     // make a var for the new array
  newFiles.splice(file, 1);        // remove the file from the array
  setFiles(newFiles);              // update the state
};

And pass the number in your map: acceptedFiles.map(file... should be acceptedFiles.map((file, i)....

Then have <button type="button" onClick={() => remove(i)> DeleteButton</button> where i is the number of the file in the array.

Answer 2

I hope this will help you :

import React, { useState, useEffect, useCallback } from 'react'
import { useDropzone } from 'react-dropzone'

const CreateFileUpload = () => {
  const onDrop = useCallback(acceptedFiles => {
    // Do something with the files
  }, [])
  const { getRootProps, getInputProps, isDragActive, acceptedFiles } = useDropzone({ onDrop, accept: '.png, .jpeg' })
  const files = acceptedFiles.map((file, i) => (
    <li key={file.path} className="selected-file-item">
      {file.path}  <i className="fa fa-trash text-red" onClick={() => remove(i)}></i>
    </li>
  ));
  const remove = file => {
    const newFiles = [...files];     // make a var for the new array
    acceptedFiles.splice(file, 1);        // remove the file from the array
  };
  return (
    <div>
      <div {...getRootProps()} className="dropzone-main">
        <div
          className="ntc-start-files-dropzone"
          aria-disabled="false"
        >
        </div>
        <button className="add-button" type="button">
          <i className="fa fa-plus"></i>
        </button>
        <h3 className="upload-title">
          <span></span>
        </h3>
        <input
          type="file"
          multiple=""
          autocomplete="off"
          className="inp-file"
          // onChange={uploadFile}
          multiple
          {...getInputProps()}
        />
        {isDragActive ?
          <div></div>
          :
          <div>
            <p>  Upload files  </p>
          </div>
        }
      </div>
      <aside>
        {files.length > 0 ? <h5>Selected Files</h5> : <h5></h5>}
        <ul>{files}</ul>
      </aside>
    </div>
  )
}
export default CreateFileUpload