hirdeshpal888527/vantage

How hirdeshpal888527/vantage works

Vantage is an A/B experimentation platform with a dual-write feature store. Experiment owners design tests through the dashboard or API; the API sizes experiments, assigns users, records metric events, and computes monitored results. A separate feature workflow registers and writes features, then serves online or point-in-time offline lookups. The README documents PostgreSQL and Redis roles; sampled code confirms the statistical modules and their API use. Some API internals were omitted from excerpts, so the graph avoids inferring their unshown wiring.

Main entry points: main.py FastAPI Service · feature_store.py Feature Store · app.py Streamlit Dashboard · assignment.py Variant Assignment

Components 16

User Interfaces

Streamlit Dashboard dashboard/app.py
FastAPI Service api/main.py

Experiment Runtime

Experiment Design api/main.py
Variant Assignment api/assignment.py
Metric Tracking api/main.py
Experiment Results api/main.py

Statistical Methods

Power Analysis stats/power_analysis.py
SRM Check api/assignment.py
Sequential Test stats/sequential_testing.py
CUPED Adjustment stats/cuped.py
Bootstrap Intervals stats/bootstrap.py

Feature Store

Feature Endpoints api/main.py
Feature Store api/feature_store.py

Data Stores

PostgreSQL
Redis

Other components

Experiment Owner

Connections 22

Experiment Owner → Streamlit Dashboard: uses README.md
Experiment Owner → FastAPI Service: calls README.md
Streamlit Dashboard → FastAPI Service: requests dashboard/app.py
FastAPI Service → Experiment Design: handles api/main.py
Experiment Design → Power Analysis: computes size api/main.py
Experiment Design → PostgreSQL: writes experiment api/main.py
FastAPI Service → Variant Assignment: assigns users api/main.py
Variant Assignment → PostgreSQL: stores assignment
FastAPI Service → Metric Tracking: handles events api/main.py
Metric Tracking → PostgreSQL: writes events api/main.py
FastAPI Service → Experiment Results: computes results api/main.py
Experiment Results → PostgreSQL: reads experiment data api/main.py
Experiment Results → SRM Check: checks split api/main.py
Experiment Results → Sequential Test: tests outcomes api/main.py
Experiment Results → CUPED Adjustment: adjusts metrics api/main.py
Experiment Results → Bootstrap Intervals: estimates intervals api/main.py
FastAPI Service → Feature Endpoints: serves features api/main.py
Feature Endpoints → Feature Store: delegates api/main.py
Feature Store → PostgreSQL: writes history api/feature_store.py
Feature Store → Redis: writes cache api/feature_store.py
Feature Store → Redis: reads online api/feature_store.py
Feature Store → PostgreSQL: queries as-of api/feature_store.py

Drawn by GitDiagram on November 11, 2026 from the repository's file tree, README and source files. Read as Markdown ·