Explore how you can modify a Python repository using code suggestions from GitHub Copilot to create an interactive HTML form and an Application Programming Interface (API) endpoint. By working with this repository, you'll quickly get hands-on with a Python web app that serves an HTTP API that generates a pseudo-random token, commonly used in for identification.

1. Enable your GitHub Copilot service
2. Open this repository with Codespaces

The API already has a single endpoint to generate a token. Let's update the API by adding a new endpoint that accepts text and returns a list of tokens.

Go to the main.py file, and add a comment so that GitHub Copilot can generate a Pydantic model for you. The generated model should look like this:

class Text(BaseModel): 

text: str

Next, generate a new endpoint with GitHub Copilot by adding the comment:

# Create a FastAPI endpoint that accepts a POST request with a JSON body containing a single field called "text" and returns a checksum of the text 

The generate() route creates a pseudo-random token ID using a single line that might be difficult to fully understand. Select the whole function, and then right click on the selection, then select the Copilot menu item, and then the "Explain This" option. The GitHub Copilot chat interface will open to the left and provide you a useful explanation which you can use to interactively ask more questions.

Finally, verify the new endpoint is working by trying it out by going to the /docs endpoint and confirming that the endpoint shows up.

🚀 Congratulations, through the exercise, you haven't only used copilot to generate code but also done it in an interactive and fun way! You can use GitHub Copilot to not only generate code, but write documentation, test your applications and more.

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