components#FileInput TypeScript Examples

The following examples show how to use components#FileInput. You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may check out the related API usage on the sidebar.

Example #1

Source File: ImportExport.tsx From crossfeed with Creative Commons Zero v1.0 Universal

6 votes

Import = <T extends object>(props: ImportProps<T>) => {
  const { setLoading } = useAuthContext();
  const { name, onImport } = props;
  const parseCSV = async (event: React.ChangeEvent<HTMLInputElement>) => {
    if (!event.target.files || !event.target.files.length) {
      return;
    }
    setLoading((l) => l + 1);
    const results: T[] = await new Promise((resolve, reject) =>
      Papa.parse(event.target.files![0], {
        header: true,
        dynamicTyping: true,
        complete: ({ data, errors }) =>
          errors.length ? reject(errors) : resolve(data as T[])
      })
    );
    setLoading((l) => l - 1);
    onImport(results);
  };
  return (
    <form>
      <h2>Import {name}</h2>
      <FormGroup>
        <Label htmlFor="import">
          File must be in a CSV format, with the same header as the exported
          file.
        </Label>
        <FileInput id="import" accept=".csv" onChange={(e) => parseCSV(e)} />
      </FormGroup>
    </form>
  );
}