Case Study — Web

GitVisual Pull Request Reviewer

A web app generating visual branch graphs and diff trees to simplify GitHub code reviews.

Project Overview

GitVisual offers an interactive alternative to GitHub's file diff lists. It processes change histories, mapping files onto D3 radial graphs. Code files are colored based on change size, highlighting risky commits.

Key Features & Scope

Interactive D3 file dependency graphs displaying file changes visually

GitHub API integrations syncing repository structures instantly

Code metrics analyzers highlighting complex files that lack unit tests

Team comment boards supporting inline threads and approval checkpoints

System Architecture

React client connected to a secure Express server. The backend retrieves branch payloads, computes change complexities, and pipes JSON responses to D3 canvas widgets.

Client InterfaceNext.js / React
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Backend CoreNode.js / Express
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Database NodeRedis Cache
Database: Redis Cache
Deployment: Render & Vercel
97
Performance
96
Accessibility
98
Best Practices
100
SEO
Verified Production Metrics
ReactTypeScriptGitHub REST APID3.jsNode.jsExpress

Keywords and concepts covered in this project case study:

GitVisual PR ReviewerD3js code change visualizerGitHub REST API developer dashboardReact Git diff graph

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