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Formik sample with TypeScript
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import { InjectedFormikProps, withFormik } from 'formik'; | |
import * as React from 'react'; | |
import * as Yup from 'yup'; | |
interface FormValues { | |
login: string; | |
} | |
interface FormProps { | |
login?: string; | |
} | |
const InnerForm: React.SFC<InjectedFormikProps<FormProps, FormValues>> = ( | |
props, | |
) => ( | |
<form onSubmit={props.handleSubmit}> | |
<input | |
id="login" | |
placeholder="User name..." | |
type="text" | |
onChange={props.handleChange} | |
value={props.values.login} | |
/> | |
{props.touched.login && props.errors.login && | |
<div>{props.errors.login}</div>} | |
<button | |
type="submit" | |
disabled={props.isSubmitting} | |
> | |
Submit | |
</button> | |
</form> | |
); | |
const UserSearchForm = withFormik<FormProps, FormValues>({ | |
mapPropsToValues: () => ({ login: '' }), | |
validationSchema: Yup.object().shape({ | |
login: Yup.string() | |
.max(16, 'Please input 16 characters or less') | |
.required('Please input login name'), | |
}, | |
), | |
handleSubmit: (values, { setSubmitting }) => { | |
setTimeout( | |
() => { | |
alert(JSON.stringify(values, null, 2)); | |
setSubmitting(false); | |
}, | |
1000, | |
); | |
}, | |
})(InnerForm); | |
export default UserSearchForm; |
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