A simple API with FastAPI and Deta

Do not clone the repo if you are learning, just follow along.

Make sure you have a Deta account

Make an account and confirm it, it's free.

Install the Deta CLI and make sure you're logged in

Follow these instruction to get the Deta CLI up and running.

Create a project directory and files

To create a directory, in the terminal, run the following:

mkdir fastapp

Then change into the directory:

cd fastapp

and make two empty files:

touch main.py requirements.txt

Add FastAPI to your dependancies

In the requirements.txt file add fastapi:

fastapi

Import FastAPI and write your first endpoint

In main.py, add the following code:

from fastapi import FastAPI

app = FastAPI()

@app.get("/")
def hello():
    return "Hello from Deta!"

Deploy you code to Deta and test

To deploy to Deta, run the following command inside the project directory, aka fastapp:

deta new

The deployment should take a few seconds. Make sure to notice the Micro URL, it will look somethign like this:

https://xyz.deta.dev/

You can open it in your browser and it if everything has worked, then you will see:

Hello from Deta!

Deploy changes

You can deploy changes to Deta using this command:

deta deploy

You could also use the convenient watch command for auto-deploys

See the logs and debug your API using VISOR

To open VISOR, run the following:

deta visor open

Protect your API

To protect your API, so no one else but you could access it, run the following:

deta auth enable

You can re-open you API by running:

deta auth disable

To create an API key, run the following command

deta auth create-api-key --name name-of-the-key 

Make sure to keep it in a secure place.

Resources

• Deta Docs / Deta Base
• FastAPI Docs / Official tutorial
• Awesome Deta