Gallery · Documents · Score · Scala

http4s architecture explained

Typeful, functional HTTP for Scala. This page explains the architecture RepoLens read from http4s/http4s at 6207897. It is a static, deterministic scan: modules, files, and the document set. No API key is used.

Scanned core and ember-server on the series/0.23 line. Other backends and integrations are not included.

Code health was not scored for this snapshot.

Files

220

Modules

4

API routes

0

Language

Scala

How the code is grouped

http4s is scanned as Scala under its public license (Apache-2.0). RepoLens groups files into modules from the repository layout, then writes the same document set it writes for a local project.

Documents

The full generated pages live on the http4s document page. Each section below is one of those documents.

• Executive Summary — High-level overview for leadership, product, and stakeholders
• System Overview — Concise technical overview readable by all
• Business Domains — Codebase structure translated into business language
• Architecture Overview — Layered architecture and design patterns
• Module Catalog — Complete inventory of code modules with AI explanations
• Route Map — Application routes and API endpoints with context
• API Surface — Backend API endpoints with usage examples
• Data Flows — Major information flows through the system
• Architecture Diff — Git diff analysis and impact assessment
• System Map — Visual dependency graph with explanation
• Developer Onboarding — Quick start guide for new developers
• GraphQL Schema — GraphQL types, queries, mutations, and resolver map
• TypeScript Type Graph — TypeScript interfaces, types, classes, and relationships
• Dependency Graph — Module dependency analysis with cycle detection
• Architecture Drift — Structural changes compared to baseline snapshot
• Security Hotspots — Security anti-pattern detection with CWE classification
• Code Health Report — Per-module health scores from complexity, coupling, docs, and security