HTTP::Error Unknown MIME type: text/html

[tak1n]

When API.ai does not respond with json calling #parse on a HTTP response raises an exception as no other Mime Type handler is registered yet. (HTTP implements json handler as default: https://github.com/httprb/http/blob/master/lib/http/mime_type/json.rb)

This problem mostly occurrs when API.ai is down (so should not be a big deal as I hope it is not that often down :D), but still it would be helpful to have a more intuitive exception raised.
Further down in apiai-ruby-cllient the problem is that fail_or_return_response_body(response.code, response_body) already takes the parsed response as argument.

apiai-ruby-client should probably only call #parse if it knows it's a json response.

Is this anything we should improve? If yes I will try to create a pr for it.

[saieswar]

correct, but sometimes if anything wrong in client access token like adding spaces etc this issue is reproduced we can resolve by making it correct

[echan00]

I just started getting this error from dialogflow, quite concerning as this is breaking our chatbot and all conversations

[imthatcarlos]

Just got this error as well.

[gurschitz]

Same here, we keep getting this error every once in a while.