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File Upload with Chakra UI and react-hook-form
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import { ReactNode, useRef } from 'react' | |
import { Button, FormControl, FormErrorMessage, FormLabel, Icon, InputGroup } from '@chakra-ui/react' | |
import { useForm, UseFormRegisterReturn } from 'react-hook-form' | |
import { FiFile } from 'react-icons/fi' | |
type FileUploadProps = { | |
register: UseFormRegisterReturn | |
accept?: string | |
multiple?: boolean | |
children?: ReactNode | |
} | |
const FileUpload = (props: FileUploadProps) => { | |
const { register, accept, multiple, children } = props | |
const inputRef = useRef<HTMLInputElement | null>(null) | |
const { ref, ...rest } = register as {ref: (instance: HTMLInputElement | null) => void} | |
const handleClick = () => inputRef.current?.click() | |
return ( | |
<InputGroup onClick={handleClick}> | |
<input | |
type={'file'} | |
multiple={multiple || false} | |
hidden | |
accept={accept} | |
{...rest} | |
ref={(e) => { | |
ref(e) | |
inputRef.current = e | |
}} | |
/> | |
<> | |
{children} | |
</> | |
</InputGroup> | |
) | |
} | |
type FormValues = { | |
file_: FileList | |
} | |
const App = () => { | |
const { register, handleSubmit, formState: { errors } } = useForm<FormValues>() | |
const onSubmit = handleSubmit((data) => console.log('On Submit: ', data)) | |
const validateFiles = (value: FileList) => { | |
if (value.length < 1) { | |
return 'Files is required' | |
} | |
for (const file of Array.from(value)) { | |
const fsMb = file.size / (1024 * 1024) | |
const MAX_FILE_SIZE = 10 | |
if (fsMb > MAX_FILE_SIZE) { | |
return 'Max file size 10mb' | |
} | |
} | |
return true | |
} | |
return ( | |
<> | |
<form onSubmit={onSubmit}> | |
<FormControl isInvalid={!!errors.file_} isRequired> | |
<FormLabel>{'File input'}</FormLabel> | |
<FileUpload | |
accept={'image/*'} | |
multiple | |
register={register('file_', { validate: validateFiles })} | |
> | |
<Button leftIcon={<Icon as={FiFile} />}> | |
Upload | |
</Button> | |
</FileUpload> | |
<FormErrorMessage> | |
{errors.file_ && errors?.file_.message} | |
</FormErrorMessage> | |
</FormControl> | |
<button>Submit</button> | |
</form> | |
</> | |
) | |
} | |
export default App |
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