Developers

Web Widget API

API reference

@nlxai/chat-widget

Interfaces

Type Aliases

StorageType

Ƭ StorageType: "localStorage" | "sessionStorage"

When this option is set to "localStorage" or "sessionStorage", the state of the chat conversation is persisted in local or session storage respectively.

This allows the state and history of the conversation to persist between full page refreshes.

> When using the session storage feature, it is your responsibility > to make sure that your website complies with your data protection > and privacy policy requirements.

Defined in

packages/chat-widget/src/props.ts:45


CustomModalityComponent

Ƭ CustomModalityComponent: FC<{ key: string ; data: any }>

Custom Modalities allow rendering of rich components from nodes. See: https://docs.studio.nlx.ai/intentflows/documentation-flows/flows-build-mode/advanced-messaging-+-functionality#modalities

Defined in

packages/chat-widget/src/props.ts:51

Variables

defaultTheme

Const defaultTheme: Theme

the default theme

Defined in

packages/chat-widget/src/ui/constants.ts:16

Functions

getCurrentExpirationTimestamp

getCurrentExpirationTimestamp(responses): null | number

Get current expiration timestamp from the current list of reponses

Parameters

NameTypeDescription
responsesResponse[]the current list of user and bot responses (first argument in the subscribe callback)

Returns

null | number

an expiration timestamp in Unix Epoch (new Date().getTime()), or null if this is not known (typically occurs if the bot has not responded yet)

Defined in

packages/chat-core/lib/index.d.ts:559


create

create(props): WidgetInstance

Create a new chat widget and renders it as the last element in the body.

Parameters

NameType
propsProps

Returns

WidgetInstance

the WidgetInstance to script widget behavior.

Defined in

packages/chat-widget/src/index.tsx:114


clearSession

clearSession(storeIn): void

Clears stored session history.

Parameters

NameTypeDescription
storeInStorageTypewhere to clear the session.

Returns

void

Defined in

packages/chat-widget/src/index.tsx:351


useConversationHandler

useConversationHandler(): null | ConversationHandler

Hook to get the ConversationHandler for the widget. This may be called before the Widget has been created. It will return null until the Widget has been created and the conversation has been established.

Returns

null | ConversationHandler

the ConversationHandler if the widget has been created and its conversation has been established, otherwise it returns null.

Defined in

packages/chat-widget/src/index.tsx:474


Widget

Widget(props): ReactNode

Parameters

NameType
propsProps & RefAttributes<WidgetRef>

Returns

ReactNode

Defined in

packages/chat-widget/src/index.tsx:478

Interfaces

Interface: Nudge

When set, a dismissable call-to-action will appear above the chat icon with the given text.

By default, the call-to-action will be displayed after 3 seconds, and will automatically dismiss after 20 seconds.

It will be dissapear when the chat is opened, but until dismissed, will reappear whenever the chat is minimized or closed.

Properties

content

content: string

The text content of the nudge. Markdown is supported.

Defined in

packages/chat-widget/src/props.ts:73


showAfter

Optional showAfter: number

Show the nudge after a specific time, measured in milliseconds. Defaults to 3000 (3s) if not set.

Defined in

packages/chat-widget/src/props.ts:78


hideAfter

Optional hideAfter: number

Hide the nudge after a specific time after it appears, measured in milliseconds. Defaults to 20000 (20s) if not set.

Defined in

packages/chat-widget/src/props.ts:83

Interface: Props

The properties for creating the Chat Widget.

Properties

config

config: Config

The configuration to create a conversation.

Defined in

packages/chat-widget/src/props.ts:93


theme

Optional theme: Partial<Theme>

The theme to apply to the chat widget.

Defined in

packages/chat-widget/src/props.ts:97


titleBar

Optional titleBar: TitleBar

How to configure the title bar. When missing, the widget will not have a title bar.

Defined in

packages/chat-widget/src/props.ts:101


chatIcon

Optional chatIcon: string

If you want a custom chat icon, set this to the URL of an image to use.

Defined in

packages/chat-widget/src/props.ts:105


nudge

Optional nudge: Nudge

An optional Nudge configuration object.

Defined in

packages/chat-widget/src/props.ts:109


inputPlaceholder

Optional inputPlaceholder: string

The placeholder in the input field. When not set, the default placeholder is "Type something..."

Defined in

packages/chat-widget/src/props.ts:113


loaderMessage

Optional loaderMessage: string

A message to display to the user while the bot is still processing the previous message from the user.

Defined in

packages/chat-widget/src/props.ts:117


showLoaderMessageAfter

Optional showLoaderMessageAfter: number

How long to wait, in milliseconds, before the loader message is displayed. Default is 2,500ms.

Defined in

packages/chat-widget/src/props.ts:121


allowChoiceReselection

Optional allowChoiceReselection: boolean

If set to true, previously selected choices in the chat can be changed.

Defined in

packages/chat-widget/src/props.ts:125


storeIn

Optional storeIn: StorageType

When set, chat history & conversation will be stored in the browser.

Defined in

packages/chat-widget/src/props.ts:129


onExpand

Optional onExpand: (conversationHandler: ConversationHandler) => void

Optional callback to be called when the chat is expanded.

Type declaration

▸ (conversationHandler): void

Parameters
NameType
conversationHandlerConversationHandler
Returns

void

Defined in

packages/chat-widget/src/props.ts:133


onCollapse

Optional onCollapse: (conversationHandler: ConversationHandler) => void

Optional callback to be called when the chat is collapsed. This is also called when the chat is closed.

Type declaration

▸ (conversationHandler): void

Parameters
NameType
conversationHandlerConversationHandler
Returns

void

Defined in

packages/chat-widget/src/props.ts:137


onClose

Optional onClose: () => void

Optional callback to be called when the chat is closed via the close button.

Type declaration

▸ (): void

Returns

void

Defined in

packages/chat-widget/src/props.ts:141


onNudgeClose

Optional onNudgeClose: (conversationHandler: ConversationHandler) => void

Optional callback to be called when the nudge element is closed explicitly by the user. It is not called when the nudge is hidden automatically after the hideAfter interval passes.

Type declaration

▸ (conversationHandler): void

Parameters
NameType
conversationHandlerConversationHandler
Returns

void

Defined in

packages/chat-widget/src/props.ts:145


customModalities

Optional customModalities: Record<string, CustomModalityComponent>

Set this to render a CustomModalityComponent for a given modality name See: https://docs.studio.nlx.ai/intentflows/documentation-flows/flows-build-mode/advanced-messaging-+-functionality#modalities

Defined in

packages/chat-widget/src/props.ts:151

Interface: Theme

The theme to apply to the chat widget. Colors may be in any CSS-compatible format like rgb(50, 50, 50) or #aaa

Properties

primaryColor

primaryColor: string

Primary color for interactive UI elements like buttons

Defined in

packages/chat-widget/src/theme.ts:7


darkMessageColor

darkMessageColor: string

Background color for the dark chat bubbles (sent by the user)

Defined in

packages/chat-widget/src/theme.ts:9


lightMessageColor

lightMessageColor: string

Background color for the light chat bubbles (sent by the bot)

Defined in

packages/chat-widget/src/theme.ts:11


white

white: string

Customized shade of white

Defined in

packages/chat-widget/src/theme.ts:13


fontFamily

fontFamily: string

Widget font family

Defined in

packages/chat-widget/src/theme.ts:15


spacing

spacing: number

Main spacing unit

Defined in

packages/chat-widget/src/theme.ts:17


borderRadius

borderRadius: number

Chat border radius

Defined in

packages/chat-widget/src/theme.ts:19


chatWindowMaxHeight

chatWindowMaxHeight: number

Max height of the chat window

Defined in

packages/chat-widget/src/theme.ts:21

Interface: TitleBar

Configures the Title Bar of the Chat Widget. This is visible at the top of the widget when it is open / expanded.

Properties

Optional logo: string

Optional URL to a logo image to be displayed on to the left of the title.

Defined in

packages/chat-widget/src/props.ts:13


title

title: string

The title string.

Defined in

packages/chat-widget/src/props.ts:17


withCollapseButton

Optional withCollapseButton: boolean

Setting this to true shows the collapse button ("_"). Pressing the collapse button will hide the chat overlay but keep it active.

Defined in

packages/chat-widget/src/props.ts:22


withCloseButton

Optional withCloseButton: boolean

Setting this to true shows the close button ("X"). Pressing the close button will

  • hide the chat overlay
  • terminate the ongoing conversation
  • call the chat's onClose handler if provided.
Defined in

packages/chat-widget/src/props.ts:30

Interface: WidgetInstance

A handler for a Widget. Created with create

Properties

teardown

teardown: () => void

End the conversation, clean up all event handlers, and remove the widget from the DOM. If you want to additionally clear a stored session, explicitly call clearSession with your Props.

Type declaration

▸ (): void

Returns

void

Defined in

packages/chat-widget/src/index.tsx:74


expand

expand: () => void

Expand the widget and call the onExpand callback if present.

Type declaration

▸ (): void

Returns

void

Defined in

packages/chat-widget/src/index.tsx:78


collapse

collapse: () => void

Collapse the widget and call the onCollapse callback if present.

Type declaration

▸ (): void

Returns

void

Defined in

packages/chat-widget/src/index.tsx:82


getConversationHandler

getConversationHandler: () => undefined | ConversationHandler

Get the ConversationHandler for widget. Returns undefined if the widget has not yet been established. Note that this might not be available synchronously after widget initialization, and therefore an undefined check is highly recommended before use. See: https://developers.nlx.ai/headless-api-reference#interfacesconversationhandlermd

Type declaration

▸ (): undefined | ConversationHandler

Returns

undefined | ConversationHandler

Defined in

packages/chat-widget/src/index.tsx:88

Interface: WidgetRef

Widget Ref, for use when rendering a Widget without using the create helper function.

Properties

expand

expand: () => void

Expand the widget and call the onExpand callback if present.

Type declaration

▸ (): void

Returns

void

Defined in

packages/chat-widget/src/index.tsx:98


collapse

collapse: () => void

Collapse the widget and call the onCollapse callback if present.

Type declaration

▸ (): void

Returns

void

Defined in

packages/chat-widget/src/index.tsx:102


conversationHandler

conversationHandler: ConversationHandler

the ConversationHandler for the widget.

Defined in

packages/chat-widget/src/index.tsx:106