This is mostly for our own internal use at JCore Systems so I'm not putting a lot of effort into this documentation, here is a bulk example:
import * as React from 'react'
import { render } from 'react-dom'
import { Form, Field } from 'react-final-form'
import TextField from '../src/TextField'
import Button from '@material-ui/core/Button'
import Radio from '@material-ui/core/Radio'
import Checkbox from '../src/Checkbox'
import Switch from '../src/Switch'
import FormControl from '../src/FormControl'
import FormControlLabel from '@material-ui/core/FormControlLabel'
import FormGroup from '@material-ui/core/FormGroup'
import RadioGroup from '../src/RadioGroup'
import Autocomplete from '../src/Autocomplete'
const validateUsername = (username: string | undefined) =>
username !== 'andy' ? 'must be andy' : undefined
const required = (value: string | undefined) =>
!value?.trim() ? 'is required' : undefined
const handleSubmit = ({ password }: { username: string; password: string }) => {
if (password !== 'password') return { password: 'must be password' }
}
const top100Films = [
{ title: 'The Shawshank Redemption', year: 1994 },
{ title: 'The Godfather', year: 1972 },
{ title: 'The Godfather: Part II', year: 1974 },
{ title: 'The Dark Knight', year: 2008 },
{ title: '12 Angry Men', year: 1957 },
{ title: "Schindler's List", year: 1993 },
{ title: 'Pulp Fiction', year: 1994 },
{ title: 'The Lord of the Rings: The Return of the King', year: 2003 },
{ title: 'The Good, the Bad and the Ugly', year: 1966 },
{ title: 'Fight Club', year: 1999 },
{ title: 'The Lord of the Rings: The Fellowship of the Ring', year: 2001 },
{ title: 'Star Wars: Episode V - The Empire Strikes Back', year: 1980 },
{ title: 'Forrest Gump', year: 1994 },
{ title: 'Inception', year: 2010 },
{ title: 'The Lord of the Rings: The Two Towers', year: 2002 },
{ title: "One Flew Over the Cuckoo's Nest", year: 1975 },
{ title: 'Goodfellas', year: 1990 },
{ title: 'The Matrix', year: 1999 },
{ title: 'Seven Samurai', year: 1954 },
{ title: 'Star Wars: Episode IV - A New Hope', year: 1977 },
{ title: 'City of God', year: 2002 },
{ title: 'Se7en', year: 1995 },
{ title: 'The Silence of the Lambs', year: 1991 },
{ title: "It's a Wonderful Life", year: 1946 },
{ title: 'Life Is Beautiful', year: 1997 },
{ title: 'The Usual Suspects', year: 1995 },
{ title: 'Léon: The Professional', year: 1994 },
{ title: 'Spirited Away', year: 2001 },
{ title: 'Saving Private Ryan', year: 1998 },
{ title: 'Once Upon a Time in the West', year: 1968 },
{ title: 'American History X', year: 1998 },
{ title: 'Interstellar', year: 2014 },
{ title: 'Casablanca', year: 1942 },
{ title: 'City Lights', year: 1931 },
{ title: 'Psycho', year: 1960 },
{ title: 'The Green Mile', year: 1999 },
{ title: 'The Intouchables', year: 2011 },
{ title: 'Modern Times', year: 1936 },
{ title: 'Raiders of the Lost Ark', year: 1981 },
{ title: 'Rear Window', year: 1954 },
{ title: 'The Pianist', year: 2002 },
{ title: 'The Departed', year: 2006 },
{ title: 'Terminator 2: Judgment Day', year: 1991 },
{ title: 'Back to the Future', year: 1985 },
{ title: 'Whiplash', year: 2014 },
{ title: 'Gladiator', year: 2000 },
{ title: 'Memento', year: 2000 },
{ title: 'The Prestige', year: 2006 },
{ title: 'The Lion King', year: 1994 },
{ title: 'Apocalypse Now', year: 1979 },
{ title: 'Alien', year: 1979 },
{ title: 'Sunset Boulevard', year: 1950 },
{
title:
'Dr. Strangelove or: How I Learned to Stop Worrying and Love the Bomb',
year: 1964,
},
{ title: 'The Great Dictator', year: 1940 },
{ title: 'Cinema Paradiso', year: 1988 },
{ title: 'The Lives of Others', year: 2006 },
{ title: 'Grave of the Fireflies', year: 1988 },
{ title: 'Paths of Glory', year: 1957 },
{ title: 'Django Unchained', year: 2012 },
{ title: 'The Shining', year: 1980 },
{ title: 'WALL·E', year: 2008 },
{ title: 'American Beauty', year: 1999 },
{ title: 'The Dark Knight Rises', year: 2012 },
{ title: 'Princess Mononoke', year: 1997 },
{ title: 'Aliens', year: 1986 },
{ title: 'Oldboy', year: 2003 },
{ title: 'Once Upon a Time in America', year: 1984 },
{ title: 'Witness for the Prosecution', year: 1957 },
{ title: 'Das Boot', year: 1981 },
{ title: 'Citizen Kane', year: 1941 },
{ title: 'North by Northwest', year: 1959 },
{ title: 'Vertigo', year: 1958 },
{ title: 'Star Wars: Episode VI - Return of the Jedi', year: 1983 },
{ title: 'Reservoir Dogs', year: 1992 },
{ title: 'Braveheart', year: 1995 },
{ title: 'M', year: 1931 },
{ title: 'Requiem for a Dream', year: 2000 },
{ title: 'Amélie', year: 2001 },
{ title: 'A Clockwork Orange', year: 1971 },
{ title: 'Like Stars on Earth', year: 2007 },
{ title: 'Taxi Driver', year: 1976 },
{ title: 'Lawrence of Arabia', year: 1962 },
{ title: 'Double Indemnity', year: 1944 },
{ title: 'Eternal Sunshine of the Spotless Mind', year: 2004 },
{ title: 'Amadeus', year: 1984 },
{ title: 'To Kill a Mockingbird', year: 1962 },
{ title: 'Toy Story 3', year: 2010 },
{ title: 'Logan', year: 2017 },
{ title: 'Full Metal Jacket', year: 1987 },
{ title: 'Dangal', year: 2016 },
{ title: 'The Sting', year: 1973 },
{ title: '2001: A Space Odyssey', year: 1968 },
{ title: "Singin' in the Rain", year: 1952 },
{ title: 'Toy Story', year: 1995 },
{ title: 'Bicycle Thieves', year: 1948 },
{ title: 'The Kid', year: 1921 },
{ title: 'Inglourious Basterds', year: 2009 },
{ title: 'Snatch', year: 2000 },
{ title: '3 Idiots', year: 2009 },
{ title: 'Monty Python and the Holy Grail', year: 1975 },
]
render(
<Form onSubmit={handleSubmit}>
{({ handleSubmit, ...state }) => (
<form onSubmit={handleSubmit}>
<Field
label="Username"
name="username"
type="text"
component={TextField}
validate={validateUsername}
/>
<Field
name="password"
label="Password"
type="password"
component={TextField}
validate={required}
/>
<Field name="nakedCheckbox" type="checkbox" component={Checkbox} />
<Field name="nakedCheckbox" type="checkbox" component={Switch} />
<div>
<Field
name="toppings"
label="Toppings"
component={FormControl}
validate={value =>
value?.length > 2 ? 'pick two or less' : undefined
}
>
<FormGroup>
<FormControlLabel
label="Pickles"
control={
<Field
name="toppings"
value="pickles"
type="checkbox"
component={Checkbox}
/>
}
/>
<FormControlLabel
label="Onions"
control={
<Field
name="toppings"
value="onions"
type="checkbox"
component={Checkbox}
/>
}
/>
<FormControlLabel
label="Tomatoes"
control={
<Field
name="toppings"
value="tomatoes"
type="checkbox"
component={Checkbox}
/>
}
/>
</FormGroup>
</Field>
<Field name="size" label="Size" component={FormControl}>
<Field name="size" type="radio" component={RadioGroup}>
<FormControlLabel
value="small"
label="Small"
control={<Radio />}
/>
<FormControlLabel
value="medium"
label="Medium"
control={<Radio />}
/>
<FormControlLabel
value="large"
label="Large"
control={<Radio />}
/>
</Field>
</Field>
</div>
<Field
component={Autocomplete}
name="film"
id="free-solo-demo"
freeSolo
options={top100Films.map(option => option.title)}
renderInput={params => <TextField {...params} label="Film" />}
/>
<Button variant="contained" color="primary" type="submit">
Submit
</Button>
<pre>{JSON.stringify(state, null, 2)}</pre>
</form>
)}
</Form>,
document.getElementById('root') as any
)