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@morgan-stanley/composeui-messaging-client

v0.1.0-alpha.4

Published

JavaScript client for ComposeUI's Message Router

Downloads

7

Readme

@morgan-stanley/composeui-messaging-client

This package contains the client used to connect to the MessageRouter from web modules in ComposeUI.

Setup

Import createMessageRouter from the package

import { createMessageRouter } from "@morgan-stanley/composeui-messaging-client";

Use createMessageRouter() to instantiate the MessageRouter client in a ComposeUI application. It will connect to the MessageRouter hosted by the container when you call connect() on the client.

let client = createMessageRouter();
await client.connect();

Usage

Subscribe to a topic

Use the subscribe method of the client to set a handler on a topic. The message parameter of the handler method contains the payload as a string. The following example parses a JSON payload from the "exampleTopic" topic and logs it to console.

client.subscribe('exampleTopic', (message) => {
    const payload = JSON.parse(message.payload);
    console.log(payload);
    });

Publish a message

Use the publish method of the client to publish a message to a topic. The payload of the message must be a string. The following example creates a JSON string out of an object, and publishes it to the "exampleTopic" topic.

await client.publish('exampleTopic', JSON.stringify(payload));