An error occurred in the categorize middleware: Error: Can't set headers after they are sent.

[justinemar]

I'm receiving the above error if i use bot.replyPrivate on interactive_message_callback

botkit @^0.6.21

controller.on('interactive_message_callback', function(bot, message) {
     // ....Check for the selected option 
    var nonInteractiveResponse = {...}
    bot.replyPrivate(message, nonInteractiveResponse)  // An error occurred in the categorize middleware
}) 

Also is there anyway to use slash command without needing a store?

[justinemar]

bot.sendEphemeral is what i needed. But i will be happy for some answer regarding the use of store when using slash commands

[benbrown]

There is not currently a way to use slash commands without using a full Slack app that utilizes oauth. This may change in an upcoming version.