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Upload (default)

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Tillatte filformater:
JPG, PNG
Maks filstørrelse:
5 MB
Code Editor
<Upload acceptedFileTypes={['jpg', 'png']} id="upload-basic" />

useUpload React Hook

By using the Upload.useUpload you can remove or add files or the status displayed in the component.

You can also use the file blob in combination with the FileReader API.

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Tillatte filformater:
JPG, PNG
Maks filstørrelse:
5 MB
Code Editor
const Component = () => {
  const { files, setFiles } = Upload.useUpload('upload-remove-files')
  return (
    <>
      <Upload
        acceptedFileTypes={['jpg', 'png']}
        id="upload-remove-files"
      />

      <Button
        top="small"
        disabled={files.length < 1}
        onClick={() => setFiles([])}
      >
        Remove selected files
      </Button>

      <Preview files={files} />
    </>
  )
  function Preview({ files }) {
    const [images, setImages] = React.useState([])
    React.useEffect(() => {
      files.map(({ file }) => {
        let reader = new FileReader()
        reader.addEventListener(
          'load',
          (event) => {
            images.push({
              blob: event.target,
              file,
            })
            setImages([...images])
            reader = null
          },
          false,
        )
        reader.readAsDataURL(file)
      })
    }, [files])
    return (
      <Section aria-label="List of chosen images">
        {images.map((img, i) => (
          <Img
            top
            key={i}
            src={img.blob.result}
            alt={img.file.name}
            height={100}
          />
        ))}
      </Section>
    )
  }
}
render(<Component />)

Upload single file/fixed amount of files

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Tillatte filformater:
JPG, PNG
Maks filstørrelse:
5 MB
Maks antall filer:
1
Code Editor
const Component = () => {
  const { files, setFiles } = Upload.useUpload('upload-single-file')
  if (files.length) {
    console.log('files', files, setFiles)
  }
  return (
    <Upload
      acceptedFileTypes={['jpg', 'png']}
      id="upload-single-file"
      filesAmountLimit={1}
    />
  )
}
render(<Component />)

Upload loading state

When uploading the file you can set the loading state of the request using the Upload.useUpload hook and passing isLoading to the file that is being uploaded.

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Tillatte filformater:
JPG, PNG
Maks filstørrelse:
5 MB
Code Editor
const Component = () => {
  const { files, setFiles } = Upload.useUpload('upload-is-loading')
  React.useEffect(() => {
    setFiles([
      {
        file: createMockFile('fileName.png', 123, 'image/png'),
        isLoading: true,
      },
    ])
  }, [])
  return (
    <>
      <Upload acceptedFileTypes={['jpg', 'png']} id="upload-is-loading" />
      <ToggleButton
        top="small"
        disabled={files.length < 1}
        on_change={({ checked }) =>
          setFiles(
            files.map((fileItem) => {
              return {
                ...fileItem,
                isLoading: checked,
              }
            }),
          )
        }
      >
        Files is loading toggle
      </ToggleButton>
    </>
  )
}
render(<Component />)

Upload error message

The only file verification the Upload component does is for the file size and the file type. These errors are handled by the HTML element input so they aren't selectable. If you want any other error messages you can use the Upload.useUpload hook the same way as with the loading state.

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Tillatte filformater:
JPG, PNG
Maks filstørrelse:
5 MB
Code Editor
const Component = () => {
  const { files, setFiles } = Upload.useUpload('upload-error-message')
  return (
    <>
      <Upload
        acceptedFileTypes={['jpg', 'png']}
        id="upload-error-message"
      />
      <ToggleButton
        top="small"
        disabled={files.length < 1}
        on_change={({ checked }) => {
          setFiles(
            files.map((fileItem) => {
              return {
                ...fileItem,
                errorMessage: checked ? 'custom error message' : null,
              }
            }),
          )
        }}
      >
        Toggle error message
      </ToggleButton>
    </>
  )
}
render(<Component />)

Upload specific accepted file formats

You can pass the file formats as a string array. This will restrict which files that can be selected.

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Tillatte filformater:
JPG, PDF, PNG
Maks filstørrelse:
5 MB
Code Editor
const Component = () => {
  const { files, setFiles } = Upload.useUpload('upload-accepted-formats')
  if (files.length) {
    console.log('files', files, setFiles)
  }
  return (
    <Upload
      acceptedFileTypes={['png', 'jpg', 'pdf']}
      id="upload-accepted-formats"
    />
  )
}
render(<Component />)

Upload with prefilled error

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Tillatte filformater:
JPG, PNG
Maks filstørrelse:
5 MB
Code Editor
const Component = () => {
  const { files, setFiles } = Upload.useUpload('file-list')
  if (files.length) {
    console.log('files', files)
  }
  React.useEffect(() => {
    setFiles([
      {
        file: createMockFile('fileName.png', 123, 'image/png'),
        errorMessage: 'This is no real file!',
      },
    ])
  }, [])
  return <Upload acceptedFileTypes={['jpg', 'png']} id="file-list" />
}
render(<Component />)

Upload with file max size based on file type

The table of accepted file types is sorted descending by maxFileSize. Multiple fileType for the same maxFileSize is sorted alphabetically ascending by fileType.

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Tillatte filformater og maks filstørrelse
Tillatte filformater:Maks filstørrelse:
ODT, PDF, ZIP99 MB
XLS, XLSX7 MB
HTM, HTML6 MB
TIF, TIFF5 MB
DOC, DOCX4 MB
DOC, GIF, JPG, SVG1 MB
TEXT, TXT

To disable maxFileSize Use either 0 or false. If maxFileSize is not provided, it defaults to the value of Uploads fileMaxSize which defaults to 5 MB.

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Tillatte filformater og maks filstørrelse
Tillatte filformater:Maks filstørrelse:
SVG5 MB
DOC, JPG
Code Editor
<Upload
  id="upload-file-max-size-based-on-file-format-disabled"
  acceptedFileTypes={[
    {
      fileType: 'jpg',
      fileMaxSize: 0,
    },
    {
      fileType: 'doc',
      fileMaxSize: false,
    },
    {
      fileType: 'svg',
    },
  ]}
/>

Upload without file max size

You can disable the file max size, which will deactivate all file size verifications in the Upload component. This can also be used to manually implement more complex file max size verifications.

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Tillatte filformater:
JPG, PDF
Code Editor
<Upload
  acceptedFileTypes={['jpg', 'pdf']}
  id="upload-disabled-file-max-size"
  fileMaxSize={false}
/>

Upload without title and text

Tillatte filformater:
JPG, PNG
Maks filstørrelse:
5 MB
Code Editor
<Upload
  title={false}
  text={false}
  acceptedFileTypes={['jpg', 'png']}
  id="upload-no-title-no-text"
/>

Upload with async onFileDelete

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Tillatte filformater:
JPG, PNG
Maks filstørrelse:
5 MB
Code Editor
async function mockAsyncFileRemoval({ fileItem }) {
  const request = createRequest()
  console.log('making API request to remove: ' + fileItem.file.name)
  await request(3000) // Simulate a request
  const mockResponse = {
    successful_removal: Math.random() < 0.5, // Randomly fails to remove the file
  }

  if (!mockResponse.successful_removal) {
    throw new Error('Unable to remove this file')
  }
}
render(
  <Upload
    onFileDelete={mockAsyncFileRemoval}
    acceptedFileTypes={['jpg', 'png']}
    id="upload-on-file-delete"
  />,
)

Upload with onFileClick

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Tillatte filformater:
JPG, PNG
Maks filstørrelse:
5 MB
Code Editor
const Component = () => {
  const { setFiles } = Upload.useUpload('upload-on-file-click')
  React.useEffect(() => {
    setFiles([
      {
        file: createMockFile('1501870.jpg', 123, 'image/png'),
      },
    ])
  }, [])
  async function mockAsyncFileFetching({ fileItem }) {
    const request = createRequest()
    console.log(
      'making API request to fetch the url of the file: ' +
        fileItem.file.name,
    )
    await request(2000) // Simulate a request
    window.open(
      'https://eufemia.dnb.no/images/avatars/' + fileItem.file.name,
      '_blank',
    )
  }
  return (
    <>
      <Upload
        acceptedFileTypes={['jpg', 'png']}
        id="upload-on-file-click"
        onFileClick={mockAsyncFileFetching}
      />
    </>
  )
}
render(<Component />)