FileUpload

A file upload component allows users to select and upload files.

Import#

import {
  FileUpload,
  FileUploadTrigger,
  FileUploadDropzone,
  FileUploadPreview,
} from '@saas-ui/file-upload'

FileUpload: Manages state and context.
FileUploadTrigger: That triggers the file selection dialog when clicked.
FileUploadDropzone: Allows users to drag and drop files for upload.
FileUploadPreview: Show an image preview for a selected image.

Usage#

Basic#

This shows a basic example that accepts one image of maximum 1MB.

import { Text, HStack, Button } from '@chakra-ui/react'
import {
  FileUpload,
  FileUploadTrigger,
  FileUploadDropzone,
} from '@saas-ui/file-upload'

export default function Basic() {
  return (
    <FileUpload maxFileSize={1024 * 1024} maxFiles={1} accept="image/*">
      {({ acceptedFiles, deleteFile }) => (
        <FileUploadDropzone>
          <Text fontSize="sm">Drag your image here</Text>
          {!acceptedFiles?.length ? (
            <FileUploadTrigger as={Button}>Select files</FileUploadTrigger>
          ) : (
            <HStack>
              <Text fontSize="sm">{acceptedFiles[0].name}</Text>
              <Button
                onClick={(e) => {
                  e.stopPropagation()
                  deleteFile(acceptedFiles[0])
                }}
              >
                Clear
              </Button>
            </HStack>
          )}
        </FileUploadDropzone>
      )}
    </FileUpload>
  )
}

Multiple files#

Set maxFiles to increase the amount of accepted files.

import { Text, HStack, Button } from '@chakra-ui/react'
import {
  FileUpload,
  FileUploadTrigger,
  FileUploadDropzone,
} from '@saas-ui/file-upload'

export default function MultipleFiles() {
  return (
    <FileUpload maxFileSize={1024 * 1024} maxFiles={10} accept="image/*">
      {({ acceptedFiles, clearFiles }) => (
        <FileUploadDropzone>
          <Text fontSize="sm">Drag your image(s) here</Text>
          {!acceptedFiles?.length ? (
            <FileUploadTrigger as={Button}>Select image(s)</FileUploadTrigger>
          ) : (
            <HStack>
              <Text fontSize="sm">{acceptedFiles.length} selected</Text>
              <Button
                onClick={(e) => {
                  e.stopPropagation()
                  clearFiles()
                }}
              >
                Clear
              </Button>
            </HStack>
          )}
        </FileUploadDropzone>
      )}
    </FileUpload>
  )
}

Image preview#

import { Text, HStack, Button } from '@chakra-ui/react'
import {
  FileUpload,
  FileUploadTrigger,
  FileUploadDropzone,
  FileUploadPreview,
} from '@saas-ui/file-upload'

export default function Basic() {
  return (
    <FileUpload maxFileSize={1024 * 1024} maxFiles={1} accept="image/*">
      {({ acceptedFiles, deleteFile }) => (
        <FileUploadDropzone>
          {!acceptedFiles?.length ? (
            <>
              <Text fontSize="sm">Drag your image here</Text>
              <FileUploadTrigger as={Button}>Select files</FileUploadTrigger>
            </>
          ) : (
            <HStack>
              <FileUploadPreview file={acceptedFiles[0]} width="200px" />
              <Button
                onClick={(e) => {
                  e.stopPropagation()
                  deleteFile(acceptedFiles[0])
                }}
              >
                Remove
              </Button>
            </HStack>
          )}
        </FileUploadDropzone>
      )}
    </FileUpload>
  )
}

Form field#

FileUpload can be used in a Form by creating a custom field using createField provided by @saas-ui/forms.

Make sure isControlled is set to true and call the onChange handler inside the onFileChange callback to pass the file to the form state.

import { Text, HStack, Button } from '@chakra-ui/react'
import {
  FileUpload,
  FileUploadTrigger,
  FileUploadDropzone,
  } from '@saas-ui/file-upload'
import {
    Form,
    FormLayout,
    SubmitButton,
  } from '@saas-ui/react'
import { createField } from '@saas-ui/forms'
import { forwardRef } from 'react';

const UploadField = createField(
  forwardRef((props, ref) => {
    const { onChange, ...rest } = props
    return (
      <FileUpload
        maxFileSize={1024 * 1024}
        accept="image/*"
        {...rest}
        onFileChange={(files) => {
          onChange(files.acceptedFiles)
        }}
        maxFiles={1}
        inputRef={ref}
      >
        {({ acceptedFiles, deleteFile }) => (
          <FileUploadDropzone>
            <Text fontSize="sm">Drag your image here</Text>
            {!acceptedFiles?.length ? (
              <FileUploadTrigger as={Button}>Select files</FileUploadTrigger>
            ) : (
              <HStack>
                <Text fontSize="sm">{acceptedFiles[0].name}</Text>
                <Button
                  onClick={(e) => {
                    e.stopPropagation()
                    deleteFile(acceptedFiles[0])
                  }}
                >
                  Clear
                </Button>
              </HStack>
            )}
          </FileUploadDropzone>
        )}
      </FileUpload>
    )
  }),
  {
    isControlled: true,
  }
)

export default function FormField() {
  return (
    <Form
      onSubmit={async (data) => {
        const formData = new FormData()

        if (data.file) {
          formData.append('profilePicture', data.file)
          formData.append(
            'meta',
            JSON.stringify({
              filename: data.file.name,
              size: data.file.size,
              type: data.file.type,
            })
          )
          formData.append('name', data.name)
        }
        formData.append('name', data.name)

        return fetch('/api/user', {
          method: 'POST',
          body: formData,
        }).then((response) => {
          if (response.ok) {
            // Handle successful upload
          } else {
            // Handle error
          }
        })
      }}
    >
      {({ Field }) => (
        <FormLayout>
          <Field name="name" label="Your name" />
          <UploadField name="file" label="Profile picture" />
          <SubmitButton />
        </FormLayout>
      )}
    </Form>
  )
}

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