Upload

Demos

Upload (default)

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Tillatte filformater:: JPG, PNG
Maks filstørrelse:: 5 MB

<Upload acceptedFileTypes={['jpg', 'png']} />

`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

const Component = () => {
  const myUploadId = 'unique-id' // or a function, object or React Context reference.
  const { files, setFiles } = Upload.useUpload(myUploadId) // id is needed when wanting to connect with the useUpload hook.

  return (
    <>
      <Upload acceptedFileTypes={['jpg', 'png']} id={myUploadId} />

      <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, images])
    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

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

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

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

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

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!',
      },
    ])
  }, [setFiles])
  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, ZIP	99 MB
XLS, XLSX	7 MB
HTM, HTML	6 MB
TIF, TIFF	5 MB
DOC, DOCX	4 MB
DOC, GIF, JPG, SVG	1 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:
SVG	5 MB
DOC, JPG

<Upload
  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

<Upload acceptedFileTypes={['jpg', 'pdf']} fileMaxSize={false} />

Upload without title and text

Tillatte filformater:JPG, PNGMaks filstørrelse:5 MB
Code Editor<Upload title={false} text={false} acceptedFileTypes={['jpg', 'png']} />

Upload with async `onFileDelete`

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Tillatte filformater:: JPG, PNG
Maks filstørrelse:: 5 MB

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']}
  />,
)

Upload with `onFileClick`

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Tillatte filformater:: JPG, PNG
Maks filstørrelse:: 5 MB

const Component = () => {
  const { setFiles } = Upload.useUpload('upload-on-file-click')
  React.useEffect(() => {
    setFiles([
      {
        file: createMockFile('1501870.jpg', 123, 'image/png'),
        id: '1',
      },
      {
        file: createMockFile(
          'file-name-that-is-very-long-and-has-letters.png',
          123,
          'image/png',
        ),
        id: '2',
      },
    ])
  }, [setFiles])
  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 />)

#Upload

#Demos

#Upload (default)

#useUpload React Hook

#Upload single file/fixed amount of files

#Upload loading state

#Upload error message

#Upload specific accepted file formats

#Upload with prefilled error

#Upload with file max size based on file type

#Upload without file max size

#Upload without title and text

#Upload with async onFileDelete

#Upload with onFileClick

Upload

Demos

Upload (default)

`useUpload` React Hook

Upload single file/fixed amount of files

Upload loading state

Upload error message

Upload specific accepted file formats

Upload with prefilled error

Upload with file max size based on file type

Upload without file max size

Upload without title and text

Upload with async `onFileDelete`

Upload with `onFileClick`