How to listen to the data in a specific port?

Question

I wiuld like to create a chatbot from this tutorial, but it seems that the Rasa version is too old and suddenly the commands do not work.

I know how to recover and respond to messages through Slack, but I do not know how to do it from a web application that I develop with a chat interface.

With Slack, I launched the following script:

from rasa_core.channels import HttpInputChannel
from rasa_core.agent import Agent
from rasa_core.interpreter import RasaNLUInterpreter
#from rasa_slack_connector import SlackInput

nlu_interpreter = RasaNLUInterpreter('./models/nlu/default/moodnlu')
agent = Agent.load('./models/dialogue',interpreter = nlu_interpreter)


# With Slack
# https://api.slack.com/apps/AASPDV196/oauth?
#input_channel = SlackInput('OAuth Access Token','Bot User OAuth Access Token', 'Verification Token',True)

#agent.handle_channel(HttpInputChannel(5004,'/',input_channel))

# With inner app
input_channel = SlackInput('OAuth Access Token','Bot User OAuth Access Token', 'Verification Token',True)
agent.handle_channel(HttpInputChannel(5000,'/',input_channel))

I know I have to modify input_channel so that he hears in the right port, but I really do not know how.

Here is where HttpInputChannel comes from

Answer 1

If you have the dialog model and nlu model ready, you can run Rasa core like this

$python -m rasa_core.server -d <DIALOGUE_MODEL_PATH> -u <NLU_MODEL_PATH> --debug -o out.log --cors *

and then in a different terminal, do below and you will get a response

$curl -XPOST localhost:5005/conversations/default/respond -d '{"query":"Hello"}'

If sender id matters to you, then below command if you want to pass nad as a sender id

$curl -XPOST localhost:5005/conversations/nad/respond -d '{"query":"Hello"}'

Works for NLU version 0.12.3 and Core version 0.9.0a6

UPDATE: If you are trying to build an UI around it

Run below in a terminal

$python -m rasa_core.server -d <DIALOGUE_MODEL_PATH> -u <NLU_MODEL_PATH> --debug -o out.log --cors *

In your server

import requests
import json

data = '{"query":"hello"}'
response = requests.post('http://localhost:5005/conversations/default/respond', data=data)
json_response = response.json()
print (json_response[0]['text'])

This should output the reply of hello in your terminal.