Chat

Chat provides ChatContext, TranslationContext, and ThemeContext to child components. It sits below OverlayProvider.

Chat also tracks the WebSocket connection. See isOnline in ChatContext.

Best Practices

  • Keep a single Chat provider per app unless you have a strong reason to isolate contexts.
  • Use useCreateChatClient or a centralized client factory to avoid duplicate connections.
  • Disconnect the client on logout to prevent stale sessions.
  • Set closeConnectionOnBackground to match your push strategy (push requires no active socket).
  • Pass theming and i18n consistently so children read from the same context.

General Usage

Render Chat inside OverlayProvider at a high level in your app.

Use a single Chat provider per app unless you have a strong reason not to.

import { StreamChat } from "stream-chat";
import {
  ChannelList,
  Chat,
  OverlayProvider,
  useCreateChatClient,
} from "stream-chat-react-native";

const chatApiKey = "REPLACE_WITH_API_KEY";
const chatUserId = "REPLACE_WITH_USER_ID";
const chatUserName = "REPLACE_WITH_USER_NAME";
const chatUserToken = "REPLACE_WITH_USER_TOKEN";

const user = {
  id: chatUserId,
  name: chatUserName,
};

export const App = () => {
  const chatClient = useCreateChatClient({
    apiKey: chatApiKey,
    userData: user,
    tokenOrProvider: chatUserToken,
  });

  if (!chatClient) {
    return null;
  }

  return (
    <OverlayProvider>
      <Chat client={chatClient}>
        <ChannelList />
      </Chat>
    </OverlayProvider>
  );
};

You can use useCreateChatClient from stream-chat-react-native/stream-chat-expo to create a client and handle connect/disconnect.

Context Providers

Chat provides ChatContext, ThemeContext, and TranslationContext via their hooks.

ContextHook
ChatContextuseChatContext
ThemeContextuseTheme
TranslationContextuseTranslationContext

Props

client

Stream Chat client instance.

closeConnectionOnBackground

When false, the WebSocket stays connected in the background. For push notifications, the user must not have an active WebSocket connection. By default, the socket disconnects in background and reconnects on foreground.

TypeDefault
Booleantrue

enableOfflineSupport

Enables offline support for the chat. When enabled, messages and channels are cached locally and the app can work without an internet connection. Requires @op-engineering/op-sqlite to be installed.

See the offline support documentation for more details on setting this up.

TypeDefault
Booleanfalse

i18nInstance

Streami18n instance for internationalization. See translations docs.

style

A theme object to customize styles. See theming docs.

Themes are inherited from parent providers. A theme provided to OverlayProvider is the base theme that style merges into. Themes are not hoisted; a theme on Chat won't affect overlay components like the attachment picker.

Type
Object

UI Component Props

ImageComponent

Drop-in replacement for all underlying Image components in the SDK. Useful for offline image caching. See the Offline Support Guide.

TypeDefault
ComponentTypeImage

LoadingIndicator

Custom loading indicator for the chat loading state (for example, before the DB is initialized).

TypeDefault
ComponentType | null | undefinednull

isMessageAIGenerated

A callback that determines whether a message was AI generated. The default returns false.

TypeDefault
(message: LocalMessage) => boolean() => false