botbuilder-java | The Microsoft Bot Framework provides what you need to build and connect intelligent bots that intera | Bot library

I'm using the "com.microsoft.bot:bot-integration-spring:4.6.0-preview6" and can't connect to bot due to the following response: No Auth Header. Auth is required.

I'm trying to test my bot locally with the Bot Framework Emulator connected to localhost.

It's not an own implementation, I'm just using the following example: https://github.com/microsoft/botbuilder-java/tree/master/samples/02.echo-bot

This is the stacktrace:

I'm using the Java botbuilder to build a microsoft teams bot. I want to add Cards to my bot (e.g. to embed links, quick replies, and images).

In the above link it says: suggested actions are not supported in Microsoft Teams: if you want buttons to appear on a Teams bot message, use a card.

However, I can find no documentation on how to add a 'card' to the Activity schema.

I tried:

1. Using suggested actions

I tried adding my List to the SuggestedActions field in Activity but they were not rendered by microsoft teams (as expected, the documentation says this is not supported).

2. Using Attachments

I suspect it could be done using attachments, but can only find documentation for the C#/JS versions (e.g. https://docs.microsoft.com/en-us/azure/bot-service/nodejs/bot-builder-nodejs-send-rich-cards?view=azure-bot-service-3.0).

So I want to know how to add 'a card' to Activity schema so it can be rendered by my bot.