ChatGPT Plugin Backend with FastAPI

This tutorial explains how to integrate FastAPI backend with ChatGPT plugin implemented in Python. Backend stores data from ChatGPT in MongoDB to be persistent and available across sessions. 

 

ChatGPT Plugin with Persistent Storage

Receipt Assistant is our ChatGPT plugin with persistent storage support. I show how it works to upload a scanned receipt and store OCR result converted to key/value pairs by ChatGPT. Load data back into ChatGPT, review it, and produce insights. In my future videos, I explain how it works from a technical point of view.

 

FastAPI, Pydantic and MongoDB for Beginners

I show how to initialize a connection to MongoDB from FastAPI endpoint with a startup event. Before pushing it to MongoDB collection, new record validation is done with Pydantic. I like the flexibility of MongoDB Motor async library. It helps to implement seamless communication from FastAPI to MongoDB.