Intercepting RASA bot output and modifying it

Rasa Open Source
1

I am writing to seek assistance with intercepting and modifying the RASA bot output in my chatbot project.

I am currently stuck at the CollectingDispatcher method and I’m having difficulty finding a solution to my problem. I want to be able to intercept the output generated by the RASA bot, modify it with my own code, and then send the modified output to the user.

I have searched for solutions online, but none seem to be promising. I would greatly appreciate it if anybody could provide me with any guidance or resources that could help me resolve this issue.

1 Like
2

Why do you want to do this? Have you considered the NLG endpoint.

3

I want to do this in order to translate the answer. NLG endpoint wouldn`t work because I need the original RASA output.

4

Ok, then I would copy our example NLG project which will get you the Rasa output here.

5

Thank you for the response. Does that mean that the only way to access the RASA`s output is by running an NLG server?

6

There are other approaches:

  • You could also customize the channel that you are using (capture and modify the results there).
  • Another option is to put a proxy in front of the Rasa channel and do the translation in your proxy. Some users create a proxy for other reasons (security, DDOS attacks, load balancer, protocol translation).
  • Event broker (probably not a good choice for your use case)
7

Thank you for your ideas! I followed the instructions provided in Custom Connectors to create a custom channel. However, I’m unsure where to define the connector and utilize it to handle RASA outputs.

Suppose I have a function named custom_channel.py which utilizes the OutputChannel class. Where can I specify that RASA should use this particular file as an output processor?

Simply adding a blank entry (since I dont need a credentials for my custom processor) in credentials.yml like this

custom_channel.OutputTranslator: {}

isn`t enough right?