How to Connect to AWS RDS PostgreSQL Database Using FastAPI | Step-by-Step Guide
In this hands-on tutorial, you’ll learn **how to connect your FastAPI application to an AWS RDS PostgreSQL database** step-by-step. Whether you’re building a simple API or a large-scale production backend, integrating FastAPI with AWS RDS will help you store, retrieve, and manage your application data in a scalable, secure way.
AWS RDS (Relational Database Service) allows you to host a fully managed PostgreSQL database in the cloud, while **FastAPI** provides a high-performance Python framework for building APIs. By combining these two, you can create a **robust backend with a cloud-hosted database** in just a few steps.
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🛠️ **What You’ll Learn in This Video:**
* How to create an AWS RDS PostgreSQL instance
* Configuring security groups and inbound rules to allow database access
* Installing PostgreSQL dependencies for FastAPI
* Setting up database connection strings securely using environment variables
* Connecting to AWS RDS from FastAPI with SQLAlchemy / asyncpg
* Testing the database connection
* Running sample queries from FastAPI endpoints
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📌 **Step-by-Step Process:**
1️⃣ **Create AWS RDS PostgreSQL Instance**
* Log into AWS Console → RDS → Create Database → Choose PostgreSQL
* Set up DB name, username, password, and instance size
* Configure security groups to allow inbound traffic on **port 5432**
2️⃣ **Install Required Packages in FastAPI**
```bash
pip install fastapi uv
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2025/08/11
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