Of course we need to create a new project first. Let's create a new project using terminal:

We have to create .env file and add our Cohere API key to it:

Now let's install necessary libraries:

Now we can create an app.py file and write code!
First, we need to import libraries:

Then we need to create a FastAPI application and set up a Cohere client:

I will define some example data that we will use in this tutorial:

Now we can create request handler for our FastAPI application:

Okay, now we can run our application:

Now we can test our application. Let's try to ask some questions:

FastAPI is super easy to use and Cohere is a great tool for building applications that need to retrieve data.