Toast

The toast component is used to give feedback to users after an action has taken place.

Properties

pauseOnPageIdle

pauseOnInteraction

Features

Support for screen readers.
Limit the number of visible toasts.
Manage promises within toast.
Pause on hover, focus or page idle.
Can remove or update toast programmatically.

Installation

To use the toast machine in your project, run the following command in your command line:

npm install @zag-js/toast @zag-js/react
# or
yarn add @zag-js/toast @zag-js/react

npm install @zag-js/toast @zag-js/solid
# or
yarn add @zag-js/toast @zag-js/solid

npm install @zag-js/toast @zag-js/vue
# or
yarn add @zag-js/toast @zag-js/vue

npm install @zag-js/toast @zag-js/vue
# or
yarn add @zag-js/toast @zag-js/vue

This command will install the framework agnostic toast logic and the reactive utilities for your framework of choice.

Anatomy

To set up the toast correctly, you'll need to understand its anatomy and how we name its parts.

Each part includes a data-part attribute to help identify them in the DOM.

Usage

First, import the toast package into your project

import * as toast from "@zag-js/toast"

Next, import the required hooks and functions for your framework and use the toast machine in your project 🔥

import { useActor, useMachine, normalizeProps } from "@zag-js/react"
import * as toast from "@zag-js/toast"
import { createContext } from "react"

// 1. Create the single toast
function Toast(props) {
  const [state, send] = useActor(props.actor)
  const api = toast.connect(state, send, normalizeProps)

  return (
    <div {...api.rootProps}>
      <h3 {...api.titleProps}>{api.title}</h3>
      <p {...api.descriptionProps}>{api.description}</p>
      <button onClick={api.dismiss}>Close</button>
    </div>
  )
}

// 2. Create the toast context
const ToastContext = createContext()
const useToast = () => useContext(ToastContext)

// 3. Create the toast group provider
export function ToastProvider({ children }) {
  const [state, send] = useMachine(toast.group.machine({ id: "1" }))

  const api = toast.group.connect(state, send, normalizeProps)

  return (
    <ToastContext.Provider value={api}>
      {Object.entries(api.toastsByPlacement).map(([placement, toasts]) => (
        <div key={placement} {...api.getGroupProps({ placement })}>
          {toasts.map((toast) => (
            <Toast key={toast.id} actor={toast} />
          ))}
        </div>
      ))}

      {children}
    </ToastContext.Provider>
  )
}

// 4. Wrap your app with the toast group provider
export function App() {
  return (
    <ToastProvider>
      <ExampleComponent />
    </ToastProvider>
  )
}

// 4. Within your app
function ExampleComponent() {
  const toast = useToast()

  return (
    <div>
      <button
        onClick={() => {
          toast.create({ title: "Hello", placement: "top-right" })
        }}
      >
        Add top-right toast
      </button>
      <button
        onClick={() => {
          toast.create({
            title: "Data submitted!",
            type: "success",
            placement: "bottom-right",
          })
        }}
      >
        Add bottom-right toast
      </button>
    </div>
  )
}

import { useActor, useMachine, normalizeProps } from "@zag-js/solid"
import * as toast from "@zag-js/toast"
import { createMemo, createUniqueId, createSignal, createContext, useContext, For } from "solid-js"

// 1. Create the single toast
function Toast(props) {
  const [state, send] = useActor(props.actor)
  const api = createMemo(() => toast.connect(state, send, normalizeProps))

  return (
    <div {...api().rootProps}>
      <h3 {...api().titleProps}>{api().title}</h3>
      <p {...api().descriptionProps}>{api().description}</p>
      <button onClick={api().dismiss}>Close</button>
    </div>
  )
}

// 2. Create the toast context
const ToastContext = createContext()
const useToast = () => useContext(ToastContext)

// 3. Create the toast group provider
export function ToastProvider(props) {
  const [state, send] = useMachine(toast.group.machine({  id: createUniqueId() }))

  const api = createMemo(() => toast.group.connect(state, send, normalizeProps))

  return (
    <ToastContext.Provider value={api}>
      <For each={Object.entries(api().toastsByPlacement)}>
        {([placement, toasts]) => (
          <div key={placement} {...api().getGroupProps({ placement })}>
            <For each={toasts}>
              {(toast) => (
                <Toast key={toast.id} actor={toast} />
              )}
            </For>
          </div>
        )}
      </For>

      {props.children}
    </ToastContext.Provider>
  )
}

// 4. Wrap your app with the toast group provider
export function App() {
  return (
    <ToastProvider>
      <ExampleComponent />
    </ToastProvider>
  )
}

// 4. Within your app
function ExampleComponent() {
  const toast = useToast()

  return (
    <div>
      <button
        onClick={() => {
          toast().create({ title: "Hello", placement: "top-right" })
        }}
      >
        Add top-right toast
      </button>
      <button
        onClick={() => {
          toast.create({
            title: "Data submitted!",
            type: "success",
            placement: "bottom-right",
          })
        }}
      >
        Add bottom-right toast
      </button>
    </div>
  )
}

import * as toast from "@zag-js/toast"
import { normalizeProps, useActor, useMachine } from "@zag-js/vue"
import { computed, defineComponent, inject, reactive } from "vue"

// 1. Create the single toast
const Toast = defineComponent({
  setup(props) {
    const [state, send] = useActor(props.actor)
    const apiRef = computed(() =>
      toast.connect(state.value, send, normalizeProps),
    )

    return () => {
      const api = apiRef.value
      return (
        <div {...api.rootProps}>
          <h3 {...api.titleProps}>{api.title}</h3>
          <p {...api.descriptionProps}>{api.description}</p>
          <button onClick={api.dismiss}>Close</button>
        </div>
      )
    }
  },
})

// 2. Add toast to your global context so it can be called anywhere in the app
const [state, send] = useMachine(toast.group.machine({ id: "1" }))
const toastApi = toast.group.connect(state, send, normalizeProps)

// E.g. Store
export const store = reactive({
  toast: toastApi,
})
// Maybe Vue app provide / inject
VueApp.provide("toast", toastApi)

// 3. Register the toast placements in the root of your app
const App = defineComponent({
  name: "App",
  setup() {
    //Get toast from global context; you could also be getting from a store,
    // this example uses the Vue app provide method
    const $toastRef = computed(() => inject("toast"))

    return () => {
      const api = $toastRef.value

      return (
        <>
          {Object.entries(api.toastsByPlacement).map(([placement, toasts]) => (
            <div key={placement} {...api.getGroupProps({ placement })}>
              {toasts.map((toast) => (
                <Toast key={toast.id} actor={toast} />
              ))}
            </div>
          ))}
          <RestOfYourApp />
        </>
      )
    }
  },
})

export default App

// 4. Within your app
defineComponent({
  name: "Component",
  setup() {
    const $toastRef = computed(() => inject("toast"))
    return () => {
      const toast = $toastRef.value
      return (
        <div>
          <button
            onClick={() => {
              toast.create({ title: "Hello", placement: "top-right" })
            }}
          >
            Add top-right toast
          </button>
          <button
            onClick={() => {
              toast.create({
                title: "Data submitted!",
                type: "success",
                placement: "bottom-right",
              })
            }}
          >
            Add bottom-right toast
          </button>
        </div>
      )
    }
  },
})

<script setup>
//imports
import * as toast from "@zag-js/toast"
import { normalizeProps, useActor, useMachine } from "@zag-js/vue"
import { computed, inject, reactive } from "vue"
</script>

<script setup>
// 1. Create the single toast
const props = defineProps<{ actor: string}>()
const [state, send] = useActor(props.actor)
const api = computed(() => toast.connect(state.value, send, normalizeProps))
</script>
<template>
    <div v-bind="api.rootProps">
      <h3 v-bind="api.titleProps">{{ api.title }}</h3>
      <p v-bind="api.descriptionProps">{{ api.description }}</p>
      <button @click="api.dismiss()">Close</button>
    </div>
</template>

<script setup>
// 2. Add toast to your global context so it can be called anywhere in the app
const [state, send] = useMachine(toast.group.machine({ id: "1" }))
const toastApi = toast.group.connect(state.value, send, normalizeProps)

// E.g. Store
export const store = reactive({
  toast: toastApi,
})
// Maybe Vue app provide / inject
VueApp.provide("toast", toastApi)
</script>


<script setup>
// 3. Register the toast placements in the root of your app

// Get toast from global context; you could also be getting from a store,
// this example uses the Vue app provide method
const api = computed(() => inject("toast"))
</script>

<template>
    <div v-for="(toasts, placement, index) in api.toastsByPlacement">
        <div :key="placement" v-bind="api.getGroupProps({ placement })" >
            <Toast v-for="toast in toasts" :key="toast.id" :actor="toast" />
        </div>
    </div>
    <RestOfYourApp />
</template>

<script setup>
// 4. Within your app

// Get toast from global context; you could also be getting from a store,
// this example uses the Vue app provide method
const toast = computed(() => inject("toast"))

const topRightToast = () => toast.create({ title: 'Hello', placement: 'top-right' })
const bottomRightToast = () =>
  toast.create({
    title: "Data submitted!",
    type: "success",
    placement: "bottom-right",
  });
</script>

<template>
    <button @click="topRightToast">
        Add top-right toast
    </button>
    <button @click="bottomRightToast">
        Add bottom-right toast
    </button>
</template>

The toast consists of three key aspects:

Toast Item

toast.machine — The state machine representation of a single toast.
toast.connect — The function that takes the toast machine and returns methods and JSX properties.

Toast Group

toast.group.machine — The state machine representation of a group of toasts. It is responsible for spawning, updating and removing toasts.
toast.group.connect — function gives you access to methods you can use to add, update, and remove a toast.

We recommend setting up the toast group machine once at the root of your project.

Creating a toast

There are five toast types that can be created with the toast machine. info, success, loading, custom and error.

To create a toast, use the toast.create(...) method.

toast.create({
  title: "Hello World",
  description: "This is a toast",
  type: "info",
})

The options you can pass in are:

title — The title of the toast.
description — The description of the toast.
type — The type of the toast. Can be either error, success , info, loading, or custom.
duration — The duration of the toast. The default duration is computed based on the specified type.
onClose — A function that is called when the toast is closed.
placement — The placement of the toast.
render — A function that returns the toast JSX (Useful for library authors).
removeDelay — The delay before removing the toast from the DOM. This is useful for managing exit animations. It is set to 0 by default.

Setting custom duration

Every toast has a default visible duration depending on the type set. Here's the table showing the toast type and duration.

type	duration
`info`	`5000`
`error`	`5000`
`success`	`2000`
`custom`	`5000`
`loading`	`Infinity`

You can override the duration of the toast by passing the duration property to the toast.create(...) function.

toast.create({
  title: "Hello World",
  description: "This is a toast",
  type: "info",
  duration: 6000,
})

You can also use the toast.upsert(...) function which creates or updates a toast.

Using portals

Using a portal is helpful to ensure that the toast is rendered outside the DOM hierarchy of the parent component. To render the toast in a portal, wrap the rendered toasts in the ToastProvider within your framework-specific portal.

import { Portal } from "@zag-js/react"

// ...

// 3. Create the toast group provider, wrap your app with it
export function ToastProvider() {
  const [state, send] = useMachine(toast.group.machine({ id: "1" }))

  const api = toast.group.connect(state, send, normalizeProps)

  return (
    <ToastContext.Provider value={api}>
      <Portal>
        {Object.entries(api.toastsByPlacement).map(([placement, toasts]) => (
          <div key={placement} {...api.getGroupProps({ placement })}>
            {toasts.map((toast) => (
              <Toast key={toast.id} actor={toast} />
            ))}
          </div>
        ))}
      </Portal>
    </ToastContext.Provider>
  )
}

Positioning toast

To position a toast when created, you can pass the placement property when you call the toast.create(...) methods provided by the toast group's connect funtion.

toast.create({
  title: "Hello World",
  description: "This is a toast",
  type: "info",
  duration: 6000,
  placement: "top-start",
})

Programmatic control

To update a toast programmatically, you need access to the unique identifier of the toast.

This identifier can be either:

the id passed into toast.create(...) or,
the returned random id when the toast.create(...) is called.

You can use any of the following methods to control a toast:

toast.upsert(...) — Creates or updates a toast.
toast.update(...) — Updates a toast.
toast.remove(...) — Removes a toast instantly without delay.
toast.dismiss(...) — Removes a toast with delay.
toast.pause(...) — Pauses a toast.
toast.resume(...) — Resumes a toast.

// grab the id from the created toast
const id = toast.create({
  title: "Hello World",
  description: "This is a toast",
  type: "info",
  duration: 6000,
  placement: "top-start",
})

// update the toast
toast.update(id, {
  title: "Hello World",
  description: "This is a toast",
  type: "success",
})

// remove the toast
toast.remove(id)

// dismiss the toast
toast.dismiss(id)

Handling promises

The toast group API exposes a toast.promise() function to allow you update the toast when it resolves or rejects.

With the promise API, you can pass the toast options for each promise lifecycle.

toast.promise(promise, {
  loading: {
    title: "Loading",
    description: "Please wait...",
  },
  success: (data) => ({
    title: "Success",
    description: "Your request has been completed",
  }),
  error: (err) => ({
    title: "Error",
    description: "An error has occurred",
  }),
})

Pausing the toasts

There are three scenarios we provide to pause a toast from timing out:

When the document loses focus or the page is idle (e.g. switching to a new browser tab), controlled via the pauseOnPageIdle context property.
When the toast is hovered or focused, controlled by the pauseOnInteraction context property.
When the toast.pause(id) provided by the toast.group.connect(...) is called.

// Global pause options
const [state, send] = useMachine(
  toast.group.machine({
    pauseOnPageIdle: true,
    pauseOnInteraction: true,
  }),
)

// Programmatically pause a toast (by `id`)
// `id` is the return value of `api.create(...)`
toast.pause(id)

Limiting the number of toasts

Toasts are great but displaying too many of them can sometimes hamper the user experience. To limit the number of visible toasts, pass the max property to the group machine's context.

const [state, send] = useMachine(
  toast.group.machine({
    max: 10,
  }),
)

Using toast outside component

The toast module exports an api function you can invoke to get access to specific methods from the toast.group.connect.

The methods available are count, isVisible, upsert, dismiss, remove, promise.

For toast to work outside component, ensure you've setup the toast group as defined in the usage guide

import * as toast from "@zag-js/toast"

function fetchData() {
  const promise = fetch("/api/data").then((res) => res.json())
  toast.api().promise(promise, {
    loading: {
      title: "Loading",
      description: "Please wait...",
    },
    success: (data) => ({
      title: "Success",
      description: "Your request has been completed",
    }),
    error: (err) => ({
      title: "Error",
      description: "An error has occurred",
    }),
  })
}

Changing the space between toasts

When multiple toasts are rendered, a gutter of 1rem is applied between each toast. To change this value, pass the gutter context property.

const [state, send] = useMachine(
  toast.group.machine({
    gutter: "50px",
  }),
)

Changing the viewport offsets

The toast group's container has position: fixed css property applied to it based on the placement set. To change the viewport offsets of the toast group's container, pass the offsets context property.

const [state, send] = useMachine(
  toast.group.machine({
    offsets: {
      top: "10px",
      right: "10px",
      bottom: "10px",
      left: "10px",
    },
  }),
)

Custom render functions

When using the toast within a design system, you might want consumers to provide custom render functions that return the toast's JSX element.

Here's how to achieve that:

// 1. Update toast to support custom render
function ToastItem(props) {
  const [state, send] = useActor(props.actor)
  const api = toast.connect(state, send)

  // Custom toast JSX defined when `toast.create({ render: () => {...} })` is called
  const jsx = state.context.render?.(api)

  // User controlled JSX
  if (jsx) {
    return jsx
  }

  // Default JSX
  return (
    <div {...api.rootProps}>
      <p {...api.titleProps}>{api.title}</p>
      <p {...api.descriptionProps}>{api.description}</p>
      <p>{api.type === "loading" ? <BeatLoader /> : null}</p>
      <button onClick={api.dismiss}>Close</button>
    </div>
  )
}

// 2. Later in the app, provide custom JSX
toast.create({
  title: "Welcome",
  description: "This is a toast",
  type: "info",
  render(api) {
    return (
      <div style={{ background: api.type === "loading" ? "pink" : "red" }}>
        <p>{props.title}</p>
        <p>{props.description}</p>
        <button onClick={props.dismiss}>Close</button>
      </div>
    )
  },
})

Styling guide

Toast styling

When a toast is created and the api.rootProps from the toast.connect is used, the toast will have a data-type that matches the specified type at its creation.

You can use this property to style the toast.

[data-part="root"][data-type="info"] {
  /* Styles for the specific toast type */
}

[data-part="root"][data-type="error"] {
  /* Styles for the error toast type */
}

[data-part="root"][data-type="success"] {
  /* Styles for the success toast type */
}

[data-part="root"][data-type="custom"] {
  /* Styles for the custom toast type */
}

[data-part="root"][data-type="loading"] {
  /* Styles for the loading toast type */
}

Open and close state

When the toast is open or closed, we attach a data-state attribute to the toast's root. A common use-case for this is to specify the entry and exit animations for the toast.

Remember to set the removeDelay to a value that matches the exit animation duration.

[data-part="root"][data-state="open"] {
  animation-name: fadein;
  animation-fill-mode: forwards;
  animation-duration: 0.2s;
}

[data-part="root"][data-state="closed"] {
  animation-duration: 0.3s;
  animation-name: fadeout;
}

Methods and Properties

The toast's api exposes the following methods:

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