Unable to import createDirectLine, createStore in Typescript with v4.13

[schemburkar]

Screenshots

file lib\index.d.ts from version v4.13.0 (left) vs v4.11.0 (right)

Version

NPM: v4.13.0

Describe the bug

The issue is present in the npm package botframework-webchat used in a react website (https://github.com/microsoft/BotFramework-WebChat/tree/master/packages/bundle/src)

The output lib folder contains a index.d.ts that is created using the new src\index.tsx and not src\index.ts. This is probably an issue with webpack output configuration in v4.13

Due to this the following line fails to compile in ts/vscode

import ReactWebChat, { createDirectLine, createStore } from 'botframework-webchat';

explicitly referencing lib/index.js does not work and is unable to recognize the exports.

Considering this work in v4.11.0, I would consider this a regression introduced in v4.13

Steps to reproduce

1. Create react app using create react app
2. Add package botframework-webchat v 4.13.0
3. Import createDirectLine, createStore from 'botframework-webchat';
4. See error

Expected behavior

The bundled package should support importing createDirectLine, createStore from 'botframework-webchat'

The above code works in v4.11.0.

Additional context

Suggest to rename the src\index.tsx added as part of PR #3818, creating a correct webpack output
The react samples in https://github.com/microsoft/BotFramework-WebChat/tree/master/samples/01.getting-started/g.hybrid-react-npm/packages/chat-component have not been updated to v4.13 else they would showcase similar issues.

[corinagum]

@schemburkar thanks for filing this bug. I'm adding to our list of R14 candidates.

[warunacds]

I know a fix for this issue is added R14, but for recording purposes, I want to mention here I'm having the same issue. By downgrading to 4.11.0 it will work on a typescript project.

[corinagum]

@warunacds thanks, additional chime-ins help us with prioritization :)

[corinagum]

Related: #3908, #3909

@compulim I'm wondering if this has to do with comments on core/index.tsx

Marking this as P0 for immediate discussion