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Toast

Toast

A succinct message that is displayed temporarily.

Installation

Install the following dependencies:

npm install @radix-ui/react-toast

Copy and paste the following code into your project.

toast.tsx

"use client"
 
import * as React from "react"
import * as ToastPrimitives from "@radix-ui/react-toast"
import { cva, type VariantProps } from "class-variance-authority"
import { X } from "lucide-react"
 
import { cn } from "@/lib/utils"
 
const ToastProvider = ToastPrimitives.Provider
 
const ToastViewport = React.forwardRef<
  React.ElementRef<typeof ToastPrimitives.Viewport>,
  React.ComponentPropsWithoutRef<typeof ToastPrimitives.Viewport>
>(({ className, ...props }, ref) => (
  <ToastPrimitives.Viewport
    ref={ref}
    className={cn(
      "fixed top-0 z-[100] flex max-h-screen w-full flex-col-reverse p-4 sm:bottom-0 sm:right-0 sm:top-auto sm:flex-col md:max-w-[420px]",
      className
    )}
    {...props}
  />
))
ToastViewport.displayName = ToastPrimitives.Viewport.displayName
 
const toastVariants = cva(
  "group pointer-events-auto relative flex w-full items-center justify-between space-x-4 overflow-hidden rounded-md border p-6 pr-8 shadow-lg transition-all data-[swipe=cancel]:translate-x-0 data-[swipe=end]:translate-x-[var(--radix-toast-swipe-end-x)] data-[swipe=move]:translate-x-[var(--radix-toast-swipe-move-x)] data-[swipe=move]:transition-none data-[state=open]:animate-in data-[state=closed]:animate-out data-[swipe=end]:animate-out data-[state=closed]:fade-out-80 data-[state=closed]:slide-out-to-right-full data-[state=open]:slide-in-from-top-full data-[state=open]:sm:slide-in-from-bottom-full",
  {
    variants: {
      variant: {
        default: "border bg-background-200 text-foreground",
        destructive:
          "destructive group border-destructive bg-destructive text-destructive-foreground",
      },
    },
    defaultVariants: {
      variant: "default",
    },
  }
)
 
const Toast = React.forwardRef<
  React.ElementRef<typeof ToastPrimitives.Root>,
  React.ComponentPropsWithoutRef<typeof ToastPrimitives.Root> &
    VariantProps<typeof toastVariants>
>(({ className, variant, ...props }, ref) => {
  return (
    <ToastPrimitives.Root
      ref={ref}
      className={cn(toastVariants({ variant }), className)}
      {...props}
    />
  )
})
Toast.displayName = ToastPrimitives.Root.displayName
 
const ToastAction = React.forwardRef<
  React.ElementRef<typeof ToastPrimitives.Action>,
  React.ComponentPropsWithoutRef<typeof ToastPrimitives.Action>
>(({ className, ...props }, ref) => (
  <ToastPrimitives.Action
    ref={ref}
    className={cn(
      "ring-offset-background inline-flex h-8 shrink-0 items-center justify-center rounded-md border bg-transparent px-3 text-sm font-medium transition-colors hover:bg-secondary focus:outline-none focus:ring-2 focus:ring-ring focus:ring-offset-2 disabled:pointer-events-none disabled:opacity-50 group-[.destructive]:border-muted/40 group-[.destructive]:hover:border-destructive/30 group-[.destructive]:hover:bg-destructive group-[.destructive]:hover:text-destructive-foreground group-[.destructive]:focus:ring-destructive",
      className
    )}
    {...props}
  />
))
ToastAction.displayName = ToastPrimitives.Action.displayName
 
const ToastClose = React.forwardRef<
  React.ElementRef<typeof ToastPrimitives.Close>,
  React.ComponentPropsWithoutRef<typeof ToastPrimitives.Close>
>(({ className, ...props }, ref) => (
  <ToastPrimitives.Close
    ref={ref}
    className={cn(
      "absolute right-2 top-2 rounded-md p-1 text-foreground/50 opacity-0 transition-opacity hover:text-foreground focus:opacity-100 focus:outline-none focus:ring-2 group-hover:opacity-100 group-[.destructive]:text-red-300 group-[.destructive]:hover:text-red-50 group-[.destructive]:focus:ring-red-400 group-[.destructive]:focus:ring-offset-red-600",
      className
    )}
    toast-close=""
    {...props}
  >
    <X className="h-4 w-4" />
  </ToastPrimitives.Close>
))
ToastClose.displayName = ToastPrimitives.Close.displayName
 
const ToastTitle = React.forwardRef<
  React.ElementRef<typeof ToastPrimitives.Title>,
  React.ComponentPropsWithoutRef<typeof ToastPrimitives.Title>
>(({ className, ...props }, ref) => (
  <ToastPrimitives.Title
    ref={ref}
    className={cn("text-sm font-semibold", className)}
    {...props}
  />
))
ToastTitle.displayName = ToastPrimitives.Title.displayName
 
const ToastDescription = React.forwardRef<
  React.ElementRef<typeof ToastPrimitives.Description>,
  React.ComponentPropsWithoutRef<typeof ToastPrimitives.Description>
>(({ className, ...props }, ref) => (
  <ToastPrimitives.Description
    ref={ref}
    className={cn("text-sm opacity-90", className)}
    {...props}
  />
))
ToastDescription.displayName = ToastPrimitives.Description.displayName
 
type ToastProps = React.ComponentPropsWithoutRef<typeof Toast>
 
type ToastActionElement = React.ReactElement<typeof ToastAction>
 
export {
  type ToastProps,
  type ToastActionElement,
  ToastProvider,
  ToastViewport,
  Toast,
  ToastTitle,
  ToastDescription,
  ToastClose,
  ToastAction,
}

toaster.tsx

"use client"
 
import {
  Toast,
  ToastClose,
  ToastDescription,
  ToastProvider,
  ToastTitle,
  ToastViewport,
} from "@/components/ui/toast"
import { useToast } from "@/components/ui/use-toast"
 
export function Toaster() {
  const { toasts } = useToast()
 
  return (
    <ToastProvider>
      {toasts.map(function ({ id, title, description, action, ...props }) {
        return (
          <Toast key={id} {...props}>
            <div className="grid gap-1">
              {title && <ToastTitle>{title}</ToastTitle>}
              {description && (
                <ToastDescription>{description}</ToastDescription>
              )}
            </div>
            {action}
            <ToastClose />
          </Toast>
        )
      })}
      <ToastViewport />
    </ToastProvider>
  )
}

use-toast.tsx

"use client"
 
// Inspired by react-hot-toast library
import * as React from "react"
 
import type {
  ToastActionElement,
  ToastProps,
} from "@/components/ui/toast"
 
const TOAST_LIMIT = 1
const TOAST_REMOVE_DELAY = 1000000
 
type ToasterToast = ToastProps & {
  id: string
  title?: React.ReactNode
  description?: React.ReactNode
  action?: ToastActionElement
}
 
const actionTypes = {
  ADD_TOAST: "ADD_TOAST",
  UPDATE_TOAST: "UPDATE_TOAST",
  DISMISS_TOAST: "DISMISS_TOAST",
  REMOVE_TOAST: "REMOVE_TOAST",
} as const
 
let count = 0
 
function genId() {
  count = (count + 1) % Number.MAX_SAFE_INTEGER
  return count.toString()
}
 
type ActionType = typeof actionTypes
 
type Action =
  | {
      type: ActionType["ADD_TOAST"]
      toast: ToasterToast
    }
  | {
      type: ActionType["UPDATE_TOAST"]
      toast: Partial<ToasterToast>
    }
  | {
      type: ActionType["DISMISS_TOAST"]
      toastId?: ToasterToast["id"]
    }
  | {
      type: ActionType["REMOVE_TOAST"]
      toastId?: ToasterToast["id"]
    }
 
interface State {
  toasts: ToasterToast[]
}
 
const toastTimeouts = new Map<string, ReturnType<typeof setTimeout>>()
 
const addToRemoveQueue = (toastId: string) => {
  if (toastTimeouts.has(toastId)) {
    return
  }
 
  const timeout = setTimeout(() => {
    toastTimeouts.delete(toastId)
    dispatch({
      type: "REMOVE_TOAST",
      toastId: toastId,
    })
  }, TOAST_REMOVE_DELAY)
 
  toastTimeouts.set(toastId, timeout)
}
 
export const reducer = (state: State, action: Action): State => {
  switch (action.type) {
    case "ADD_TOAST":
      return {
        ...state,
        toasts: [action.toast, ...state.toasts].slice(0, TOAST_LIMIT),
      }
 
    case "UPDATE_TOAST":
      return {
        ...state,
        toasts: state.toasts.map((t) =>
          t.id === action.toast.id ? { ...t, ...action.toast } : t
        ),
      }
 
    case "DISMISS_TOAST": {
      const { toastId } = action
 
      // ! Side effects ! - This could be extracted into a dismissToast() action,
      // but I'll keep it here for simplicity
      if (toastId) {
        addToRemoveQueue(toastId)
      } else {
        state.toasts.forEach((toast) => {
          addToRemoveQueue(toast.id)
        })
      }
 
      return {
        ...state,
        toasts: state.toasts.map((t) =>
          t.id === toastId || toastId === undefined
            ? {
                ...t,
                open: false,
              }
            : t
        ),
      }
    }
    case "REMOVE_TOAST":
      if (action.toastId === undefined) {
        return {
          ...state,
          toasts: [],
        }
      }
      return {
        ...state,
        toasts: state.toasts.filter((t) => t.id !== action.toastId),
      }
  }
}
 
const listeners: Array<(state: State) => void> = []
 
let memoryState: State = { toasts: [] }
 
function dispatch(action: Action) {
  memoryState = reducer(memoryState, action)
  listeners.forEach((listener) => {
    listener(memoryState)
  })
}
 
type Toast = Omit<ToasterToast, "id">
 
function toast({ ...props }: Toast) {
  const id = genId()
 
  const update = (props: ToasterToast) =>
    dispatch({
      type: "UPDATE_TOAST",
      toast: { ...props, id },
    })
  const dismiss = () => dispatch({ type: "DISMISS_TOAST", toastId: id })
 
  dispatch({
    type: "ADD_TOAST",
    toast: {
      ...props,
      id,
      open: true,
      onOpenChange: (open) => {
        if (!open) dismiss()
      },
    },
  })
 
  return {
    id: id,
    dismiss,
    update,
  }
}
 
function useToast() {
  const [state, setState] = React.useState<State>(memoryState)
 
  React.useEffect(() => {
    listeners.push(setState)
    return () => {
      const index = listeners.indexOf(setState)
      if (index > -1) {
        listeners.splice(index, 1)
      }
    }
  }, [state])
 
  return {
    ...state,
    toast,
    dismiss: (toastId?: string) => dispatch({ type: "DISMISS_TOAST", toastId }),
  }
}
 
export { useToast, toast }

Update the import paths to match your project setup.

Add the Toaster component

app/layout.tsx
import { Toaster } from "@/components/ui/toaster"
 
export default function RootLayout({ children }) {
  return (
    <html lang="en">
      <head />
      <body>
        <main>{children}</main>
        <Toaster />
      </body>
    </html>
  )
}

Usage

The useToast hook returns a toast function that you can use to display a toast.

import { useToast } from "@/components/ui/use-toast"
export const ToastDemo = () => {
  const { toast } = useToast()
 
  return (
    <Button
      onClick={() => {
        toast({
          title: "Scheduled: Catch up",
          description: "Friday, February 10, 2023 at 5:57 PM",
        })
      }}
    >
      Show Toast
    </Button>
  )
}

Examples

Simple

With title

With Action

Destructive

Use toast({ variant: "destructive" }) to display a destructive toast.