Rasa: An Open Source alternative to Google Dialogflow

If you have an application built with Google Dialogflow and made a decision to migrate it to a free and fully customizable solution Rasa Stack, check out the guide below on how to migrate the Google Dialogflow application to Rasa.

Migration from Google Dialogflow consists of just a few simple steps. Here’s how you do it:

Step 1: Export your data from Dialogflow

Navigate to your agent’s settings by clicking the gear icon.

Dialogflow Export

Click on the ‘Export and Import’ tab and click on the ‘Export as ZIP’ button.

Dialogflow Export 2

This will download a file with a .zip extension. Unzip this file to create a folder.

Step 2: Train your Rasa NLU model

Follow the instructions in the NLU Quickstart, using your downloaded folder as the training data.

If your unzipped folder is called testagent, the command would be:

python -m rasa_nlu.train -c config.yml -d testagent

Step 3: Modify your app to call your Rasa NLU Server

Your existing application will have some code to make API requests to Dialogflow. Modify the API url to point to your Rasa NLU server. If you are testing this on your development machine, that will be at http://localhost:5000 When you start the Rasa NLU server, you can also pass an emulate argument:

python -m rasa_nlu.server -e dialogflow

By adding this parameter, Rasa NLU’s responses will be in the same format as Dialogflow provides, so that you don’t have to modify anything other than the URL in your API call.

Terminology:

The words intent, entity, and utterance have the same meaning in Rasa as they do in Dialogflow. In Dialogflow, there is a concept called Fulfillment. In Rasa we call this a Custom Action.

Dialogflow also has a Small Talk module. One of our awesome contributors has made a Rasa compatible version of this here.

If you have migrated your Google Dialogflow application to Rasa, join the Rasa Community Forum and share your experience with us!