I am working on a project that require the usage of amazon lex as a chat bot. I was able to send credential to amazon lex on command line, however, I have trouble when I deploy it to my application. I deploy my bot as a widget using amazon cloudFormation. Here, user can invoker amazon lex intents by typing/speaking utterances. However, in order to fulfill these utterances, the bot (amazon lex) needs to query a database. My problem is I do not know how to send the credential (token) to the amazon lex everytime the user query my bot. Does anyone have an idea on this? Thank you very much.