问题
I am developing a bot using sdk v4 for node js and i want to end the current conversation and start new convesation when user click on a button. I tried await this.conversationState.clear(turnContext) to clear conversation data but there is no change in conversation Id. please suggest how to trigger conversationUpdate activity to restart the connection to the bot.
回答1:
Both the Bot Emulator and the Azure Portal Web Chat's contain a sort of restart button that clears the conversation history and generates a new conversation ID. This is accomplished by refreshing Web Chat.
Direct Line generates a new conversation ID every time the secret is exchanged for a token. If you are passing a Direct Line secret to Web Chat directly and letting Web Chat exchange it for a token, then all you must do to generate a new conversation ID is refresh the page or frame.
If you are storing the secret somewhere private (recommended) and exchanging it for a token yourself and passing the token to Web Chat, then just do that again to generate a new conversation ID.
来源：https://stackoverflow.com/questions/53844906/how-to-restart-a-connection-to-the-bot-using-sdk-v4-for-node-js