Store refresh token in a cookie

Question

I am initializing the chat through a token obtained calling to DirectLine Api (POST/v3/directline/tokens/generate). I store this token in a cookie and use it to resume a conversation. My problem is that the direct line automatically refreshes the token after 30 minutes and I didn't find a way to save the new token. Does anyone know how I can save the new token?

Thanks in advance

Answer 1

Subscribing to conectionStatus of DirectLine enables listening for ConnectionStatus.Online which is fired after ConnectionStatus.ExpiredToken. Then, update the cookie:

directLine.connectionStatus$.subscribe(connectionStatus => {
    if (connectionStatus === ConnectionStatus.Online) {
      setTokenCookie(this.token);
    }
  });

Reference DirectLineJs source: https://github.com/Microsoft/BotFramework-DirectLineJS/blob/master/src/directLine.ts#L473

 public reconnect(conversation: Conversation) {
        this.token = conversation.token;
        this.streamUrl = conversation.streamUrl;
        if (this.connectionStatus$.getValue() === ConnectionStatus.ExpiredToken)
            this.connectionStatus$.next(ConnectionStatus.Online);
    }