Vibgyor Technologies, Oct 2024 to now
Spring Boot to FastAPI
Average API response time fell by about 50%.
# Spring Boot to FastAPI
Jay Gadhiya. Vibgyor Technologies, Oct 2024 to now. Software Developer, Full-Stack & AI.
Average API response time fell by about 50%.
## Problem
Legacy Java Spring Boot services had to move to Python without getting slower or less correct.
## Approach
- Redesigned the database schemas.
- Rewrote the core APIs in Python and FastAPI.
- Carried the backend implementation through the whole migration.
Architecture diagram: Legacy Java Spring Boot services were replaced by core APIs rewritten in Python and FastAPI, on redesigned database schemas. Response-time goals were set before the redesign and shaped both.
## Key decisions
- **Set response-time goals before the redesign.** Performance targets shaped the schemas and APIs from the first draft.
## Result
About 50% lower average API response time, on schemas and APIs designed around that goal.
## Stack
Python, FastAPI, SQL schema design
Page: https://jaygadhiya.com/work/spring-boot-to-fastapi-migration/
Contact: hello@jaygadhiya.com
Average response time, relative to the original. About half after the rewrite.
1Problem
Legacy Java Spring Boot services had to move to Python without getting slower or less correct.
2Approach
- Redesigned the database schemas.
- Rewrote the core APIs in Python and FastAPI.
- Carried the backend implementation through the whole migration.
3Key decisions
Set response-time goals before the redesign.
Performance targets shaped the schemas and APIs from the first draft.
4Result
About 50% lower average API response time, on schemas and APIs designed around that goal.
Want to go deeper on this project?
I can walk you through the decisions and trade-offs behind it.