This is an example application to show how to implement a question and answering application based on AI21 Contextual Answering API.

The project uses Angular and Tailwind CSS. It uses a data set retrieved from Wikipedia, which you can find in /dataset.

To run locally:

• NodeJS > v18 Download latest version
• Account & API Key with AI21 Sign Up

• pull this git repository
• make sure to copy .env.template to .env and add your API key in the right place
• run npm install

To get the dataset from wikipedia

• run npm run getdata
• to get correct labels and url attached to the documents, you might need to run npm run updatemetadata but the issue might also be fixed already

To upload the dataset to AI21

• run npm run uploaddatatoai21

To start the application

• run npm run start

• run npm run build. This will generate the code needed in /dist/server. If you point a webserver to host the contents of this folder, and make sure the , it should work.

There are multiple places where you can cheaply host a NodeJS site. I used render.com, but you can use Google cloud, Vercel, AWS etc.

Settings for render.com deployment

• repository: your github repo (you will need to give access to your github repo for this)
• branch: main - you can of course create a release branch and use that instead
• build command: npm install; npm run build
• start command: npm run serveronly
• autodeploy: yes - this is very cool. As soon as you push your code to github, the new code will be deployed immediately
• in the section 'environment' you will need to add the AI21 key AI21_API_KEY and save that

Sorry, this is a demo...