Message Input for PubNub Chat Components for React

Allows users to compose messages using text and emojis and automatically publish them on PubNub channels upon sending.


This section shows the preview of a sample Message Input component and its source code.

Try it out

Test the component as Sue Flores (default user):

  1. Type in a message in the input field and send it.

  2. Go to the Message List component to see your message at the bottom of the list.


You can configure the component using these parameters:

ParameterTypeDefault valueDescription
placeholder?string"Send message"Option to set a placeholder message to display in the text window.
draftMessage?stringn/aOption to set a draft message to display in the text window.
senderInfo?booleanfalseOption to attach sender data directly to each message. Enable it for high-throughput environments. This is an alternative to providing a full list of users directly into the Chat provider.
typingIndicator?booleanfalseOption to enable/disable firing the typing events when a user is typing a message.
fileUpload?"image" | "all"n/aOption to enable/disable the internal file upload capability. It lets you send both text and file in one message.
filePreviewRenderer?(file: File | UriFileInput) => JSX.Element | nulln/aCallback to render the preview of the attached file.
disabled?booleanfalseOption to disable the input from composing and sending messages.
hideSendButton?booleanfalseOption to hide the Send button.
sendButton?JSX.Element | string<AirplaneIcon />Custom UI component to override default display for the Send button.
emojiPicker?ReactElement<EmojiPickerElementProps>n/aOption to pass in an emoji picker if you want it to be rendered in the input. For more details, refer to the Emoji Pickers section in the docs.
actionsAfterInput?booleanfalseOption to move action buttons (eg. file upload icon) to the right of the text input.
onChange?(event: ChangeEvent<HTMLTextAreaElement>) => voidn/aCallback to handle an event when the input value changes.
onKeyPress?(event: KeyboardEvent<HTMLTextAreaElement>) => voidn/aCallback to handle an event when a key is pressed in the input area.
onBeforeSend?(value: MessagePayload) => MessagePayloadn/aCallback to modify message content before sending it. This only works for text messages, not files.
onSend?(value: MessagePayload | File | UriFileInput) => voidn/aCallback for extra actions after sending a message.
extraActionsRenderer?() => JSX.Elementn/aOption to provide an extra actions renderer to add custom action buttons to the input.
Selected textarea attributesvariousn/aChat Components for React let you configure all the default React textarea attributes except for className, data-testid, disabled, onChange, onKeyPress, placeholder, ref, rows, and value. For example, you can set a limit to the maximum number of characters that can be entered in the input field using the maxLength parameter, like <MessageInput maxLength={120} />.

Offline message behavior

When you send a message and the network connection is lost, the message will still be visible in the message input upon tapping the Send button, and other chat users won’t see it on the message list. The message won't reach the server (the publish method from the JavaScript SDK will fail), returning the PubNub call failed, check status for details error.

You can handle these incoming errors using the onError property of the Chat Provider component and pass it to a custom callback function.

import "./styles.css";
import PubNub from "pubnub";
import { PubNubProvider } from "pubnub-react";
import { Chat, MessageList, MessageInput } from "@pubnub/react-chat-components";

const pubnub = new PubNub({
publishKey: "demo",
subscribeKey: "demo",
userId: "test-user"

export default function App() {
function handleError(e) {
console.log("Error handler: ", e);
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