This is the interactive counterpart to our talk at Remix Conf 2022. Get the full slides.
Server validations
Now let's add server-side validations. To make our lives easier, we'll use zod for that. (It won't work yet 🤫)
88
lines of code
import { Form } from '@remix-run/react'
import { ActionFunction, redirect, json } from '@remix-run/node'
import Label from '~/ui/label'
import Input from '~/ui/input'
import Select from '~/ui/select'
import TextArea from '~/ui/text-area'
import Button from '~/ui/button'
import { useActionData } from '@remix-run/react'
import { z } from 'zod'
const reservationSchema = z.object({
city: z.enum(['saltLakeCity', 'lasVegas', 'losAngeles']),
checkIn: z.date(),
checkOut: z.date(),
adults: z.number().int().positive(),
children: z.number().int(),
bedrooms: z.number().int().positive(),
specialRequests: z.string().optional(),
})
async function makeReservation(values: z.infer<typeof reservationSchema>) {
// Here you would store data instead
console.log(values)
}
type ActionData = { errors: z.ZodIssue[] }
export const action: ActionFunction = async ({ request }) => {
const formValues = Object.fromEntries(await request.formData())
const result = reservationSchema.safeParse(formValues)
if (result.success) {
await makeReservation(result.data)
return redirect('conf/success/02')
}
return json<ActionData>({ errors: result.error.issues })
}
function FieldError({ name }: { name: string }) {
const errors = useActionData<ActionData>()?.errors
const message = errors?.find(({ path }) => path[0] === name)?.message
if (!message) return null
return <div className="mt-1 text-red-500">{message}</div>
}
export default function Component() {
return (
<Form method="post" className="flex flex-col space-y-4">
<div>
<Label htmlFor="city">City</Label>
<Select name="city" id="city">
<option value="saltLakeCity">Salt Lake City</option>
<option value="lasVegas">Las Vegas</option>
<option value="losAngeles">Los Angeles</option>
</Select>
<FieldError name="city" />
</div>
<div className="flex w-full space-x-4">
<div className="flex-1">
<Label htmlFor="checkIn">Check In</Label>
<Input name="checkIn" id="checkIn" type="date" />
<FieldError name="checkIn" />
</div>
<div className="flex-1">
<Label htmlFor="checkOut">Check Out</Label>
<Input name="checkOut" id="checkOut" type="date" />
<FieldError name="checkOut" />
</div>
</div>
<div className="flex w-full space-x-4">
<div className="flex-1">
<Label htmlFor="adults">Adults</Label>
<Input name="adults" id="adults" />
<FieldError name="adults" />
</div>
<div className="flex-1">
<Label htmlFor="children">Children</Label>
<Input name="children" id="children" />
<FieldError name="children" />
</div>
<div className="flex-1">
<Label htmlFor="bedrooms">Bedrooms</Label>
<Input name="bedrooms" id="bedrooms" />
<FieldError name="bedrooms" />
</div>
</div>
<div>
<Label htmlFor="specialRequests">Special Requests</Label>
<TextArea name="specialRequests" id="specialRequests" />
<FieldError name="specialRequests" />
</div>
<Button>Make reservation</Button>
</Form>
)
}
This is the interactive counterpart to our talk at Remix Conf 2022. Get the full slides.
Server validations
Now let's add server-side validations. To make our lives easier, we'll use zod for that. (It won't work yet 🤫)
88
lines of code
import { Form } from '@remix-run/react'
import { ActionFunction, redirect, json } from '@remix-run/node'
import Label from '~/ui/label'
import Input from '~/ui/input'
import Select from '~/ui/select'
import TextArea from '~/ui/text-area'
import Button from '~/ui/button'
import { useActionData } from '@remix-run/react'
import { z } from 'zod'
const reservationSchema = z.object({
city: z.enum(['saltLakeCity', 'lasVegas', 'losAngeles']),
checkIn: z.date(),
checkOut: z.date(),
adults: z.number().int().positive(),
children: z.number().int(),
bedrooms: z.number().int().positive(),
specialRequests: z.string().optional(),
})
async function makeReservation(values: z.infer<typeof reservationSchema>) {
// Here you would store data instead
console.log(values)
}
type ActionData = { errors: z.ZodIssue[] }
export const action: ActionFunction = async ({ request }) => {
const formValues = Object.fromEntries(await request.formData())
const result = reservationSchema.safeParse(formValues)
if (result.success) {
await makeReservation(result.data)
return redirect('conf/success/02')
}
return json<ActionData>({ errors: result.error.issues })
}
function FieldError({ name }: { name: string }) {
const errors = useActionData<ActionData>()?.errors
const message = errors?.find(({ path }) => path[0] === name)?.message
if (!message) return null
return <div className="mt-1 text-red-500">{message}</div>
}
export default function Component() {
return (
<Form method="post" className="flex flex-col space-y-4">
<div>
<Label htmlFor="city">City</Label>
<Select name="city" id="city">
<option value="saltLakeCity">Salt Lake City</option>
<option value="lasVegas">Las Vegas</option>
<option value="losAngeles">Los Angeles</option>
</Select>
<FieldError name="city" />
</div>
<div className="flex w-full space-x-4">
<div className="flex-1">
<Label htmlFor="checkIn">Check In</Label>
<Input name="checkIn" id="checkIn" type="date" />
<FieldError name="checkIn" />
</div>
<div className="flex-1">
<Label htmlFor="checkOut">Check Out</Label>
<Input name="checkOut" id="checkOut" type="date" />
<FieldError name="checkOut" />
</div>
</div>
<div className="flex w-full space-x-4">
<div className="flex-1">
<Label htmlFor="adults">Adults</Label>
<Input name="adults" id="adults" />
<FieldError name="adults" />
</div>
<div className="flex-1">
<Label htmlFor="children">Children</Label>
<Input name="children" id="children" />
<FieldError name="children" />
</div>
<div className="flex-1">
<Label htmlFor="bedrooms">Bedrooms</Label>
<Input name="bedrooms" id="bedrooms" />
<FieldError name="bedrooms" />
</div>
</div>
<div>
<Label htmlFor="specialRequests">Special Requests</Label>
<TextArea name="specialRequests" id="specialRequests" />
<FieldError name="specialRequests" />
</div>
<Button>Make reservation</Button>
</Form>
)
}