@morgan-stanley/composeui-messaging-abstractions

Messaging helpers that wrap a lower‑level IMessaging abstraction (publish/subscribe plus request/response). Provides simple, typed APIs for sending and receiving structured data as JSON without duplicating serialization logic in callers. Provides JSON focused extension methods available using the JsonMessaging class.

Features

• Thin adapter: JsonMessaging delegates to any IMessaging implementation.
• Typed publish/subscribe via JSON (subscribeJson / publishJson).
• Typed request/response services (registerJsonService / invokeJsonService / invokeJsonServiceNoRequest).
• Automatic serialization/deserialization.
• String short‑circuit: if a typed service handler returns a string it is passed through without double JSON.stringify.

Installation

Install as a workspace dependency

npm install @morgan-stanley/composeui-messaging-abstractions

Usage

Implement the IMessaging API to declare your own communication.

import { IMessaging } from "@morgan-stanley/composeui-messaging-abstractions";
import { HubConnection } from '@microsoft/signalr';

export class MyMessaging implements IMessaging {
    constructor(private readonly signalRMessaging: MySignalWrapper) {}
    //Implement the IMessging API...
}

Module format

Rollup emits dual builds:

• ES Module: dist/index.js
• CommonJS: dist/index.cjs

package.json exports map require to CJS and import to ESM. Use:

// CJS
const { JsonMessaging } = require('@morgan-stanley/composeui-messaging-abstractions');

// ESM / TypeScript
import { JsonMessaging } from '@morgan-stanley/composeui-messaging-abstractions';

Dependencies

Runtime:

• rxjs (Unsubscribable type)

Build / Dev:

• typescript
• @rollup/plugin-typescript
• @rollup/plugin-node-resolve

License

Apache-2.0 (see NOTICE and LICENSE files).

Documentation

• FDC3 Standard
• ComposeUI Documentation

© Morgan Stanley. See NOTICE file for additional information.