Create Spatial APIs using FastAPI PostGIS Alembic & Sqlalchemy | Krishna Lodha

In this video, we’ll dive into building high-performance FastAPI applications for GIS (Geographic Information Systems) projects using SQLAlchemy and PostgreSQL. Learn how to handle spatial data, set up asynchronous database operations, and manage migrations seamlessly.
Whether you're working with geospatial applications, managing PostGIS databases, or building APIs for spatial data visualization, this guide will equip you with the skills to create efficient and scalable solutions.
🔑 Topics Covered:
Setting up FastAPI for GIS applications
Integrating PostgreSQL with PostGIS for spatial data
Using SQLAlchemy and geoalchemy2 for geospatial models
Managing asynchronous database operations with asyncpg
Handling migrations with Alembic for spatial tables
Querying and serving geospatial data efficiently in APIs
🌍 Why GIS and FastAPI?
FastAPI is a modern, high-performance framework that pairs perfectly with PostGIS for geospatial applications. This tutorial is ideal for developers building APIs for map-based applications, spatial analysis, or geographic data management.
🚀 What You'll Learn:
By the end of this video, you'll know how to:
Design and query geospatial models using SQLAlchemy and GeoAlchemy2
Work with PostGIS for spatial indexing and efficient queries
Implement FastAPI endpoints for serving geospatial data
Handle async migrations and manage spatial datasets
📁 Resources and Code:
Blog and code explanation - rottengrapes.t...
Github Repo Link - github.com/Rot...
💬 Have Questions or Suggestions?
Drop a comment below, and I’ll be happy to help!
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#FastAPI #SQLAlchemy #PostgreSQL #AsyncProgramming #BackendDevelopment #Python
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If you liked this video and want to learn complete web gis development right from HTML all the way to create these awesome applications, Do check out my course on udemy at :
www.udemy.com/...
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website : rottengrapes.tech

[@shreyashkhurud7217]

Thanks for the info, bro.
Searched all over UA-cam for this but only found it on your channel.

[@elamandeep]

Great tutorial 👏👏

[@krishnaglodha]

Thank you so much!

[@shreyashkhurud7217]

Hello Krishna.
At 14:42 you mention not to create indices using alembic.
Could you please tell me why not to create indexes for geometry using alembic?