# ketan1412/websockets_base architecture

> Architecture diagram of the GitHub repository ketan1412/websockets_base, generated by GitDiagram from its file tree, README and a sample of source files (last updated 2026-08-11). It is an AI-made overview: check details against the source.

- Interactive diagram: https://gitdiagram.com/ketan1412/websockets_base
- Repository: https://github.com/ketan1412/websockets_base

## Overview

#### Purpose and entry points
This repository implements a live match tracking and commentary system: a backend exposes match/commentary APIs and realtime updates, while a Vite/React frontend renders match status and a live feed.

- Backend process entry: `backend/src/index.js`
- Frontend bootstrap: `frontend/index.tsx`, `frontend/App.tsx`
- A root-level server entry also exists: `server.js`

#### Backend HTTP API layer
Route modules separate match-oriented operations from commentary operations, with dedicated validation before request handling.

- Match API boundary: `backend/src/routes/matches.js`
- Commentary API boundary: `backend/src/routes/commentary.js`
- Validation contracts: `backend/src/validation/matches.js`, `backend/src/validation/commentary.js`

This is the primary request/control boundary between clients and persisted/live match data.

#### Persistence and domain state
The backend uses Drizzle ORM with versioned SQL migrations and a centralized schema definition. Match status logic is isolated from route handling, indicating it is a domain-level transformation or state decision.

- Database connection/access: `backend/src/db/db.js`
- Database schema: `backend/src/db/schema.js`
- Initial migration: `backend/drizzle/0000_peaceful_satana.sql`
- Match-status domain utility: `backend/src/utils/match-status.js`

Drizzle configuration and migration metadata establish the database as durable system state rather than frontend-owned state.

#### Realtime delivery
WebSocket support is implemented as a distinct backend subsystem, likely responsible for pushing match and commentary changes to connected clients rather than requiring polling.

- WebSocket server: `backend/src/ws/server.js`
- Backend orchestration entry: `backend/src/index.js`
- Frontend socket consumer: `frontend/hooks/useWebSocket.ts`

The WebSocket boundary connects backend mutation/state changes to the frontend’s live UI state.

#### Frontend application composition
The frontend is a TypeScript React application built with Vite. `App.tsx` composes a match-focused interface from reusable display components, while hooks own data retrieval and realtime subscription behavior.

- Application root: `frontend/App.tsx`
- Match data hook: `frontend/hooks/useMatchData.ts`
- API client boundary: `frontend/services/api.ts`
- Live commentary UI: `frontend/components/LiveFeed.tsx`
- Match presentation: `frontend/components/MatchCard.tsx`
- Shared client types: `frontend/types.ts`

The expected flow is API fetch → hook-managed client state → component rendering, augmented by WebSocket events for live updates.

#### Security and external infrastructure
Arcjet is integrated at the backend, indicating an external application-security/rate-limiting or request-protection boundary.

- Arcjet integration: `backend/src/arcjet.js`
- Backend dependency/runtime manifest: `backend/package.json`
- Frontend Vite runtime configuration: `frontend/vite.config.ts`

Material runtimes are Node.js on the backend and browser-based React/TypeScript on the frontend; the database is managed through Drizzle migrations and schema definitions.

Main entry points: [`backend/src/routes/matches.js`](https://github.com/ketan1412/websockets_base/blob/main/backend/src/routes/matches.js) (Match API), [`backend/src/index.js`](https://github.com/ketan1412/websockets_base/blob/main/backend/src/index.js) (Backend entry), [`frontend/App.tsx`](https://github.com/ketan1412/websockets_base/blob/main/frontend/App.tsx) (Match application), [`backend/src/routes/commentary.js`](https://github.com/ketan1412/websockets_base/blob/main/backend/src/routes/commentary.js) (Commentary API)

## Diagram (Mermaid)

```mermaid
flowchart TD

subgraph group_backend["Backend"]
  node_root_server["Root server entry<br/>Node.js entry<br/>[server.js]"]
  node_backend_entry["Backend entry<br/>Node.js entry<br/>[index.js]"]
  node_match_routes["Match API<br/>route module<br/>[matches.js]"]
  node_commentary_routes["Commentary API<br/>route module<br/>[commentary.js]"]
  node_match_validation["Match validation<br/>validation contracts<br/>[matches.js]"]
  node_commentary_validation["Commentary validation<br/>validation contracts<br/>[commentary.js]"]
  node_arcjet{{"Arcjet protection<br/>security integration<br/>[arcjet.js]"}}
  node_match_status["Match status logic<br/>domain utility<br/>[match-status.js]"]
  node_ws_server["WebSocket server<br/>realtime server<br/>[server.js]"]
end

subgraph group_data["Data layer"]
  node_db_access["Drizzle access<br/>database access<br/>[db.js]"]
  node_db_schema["Database schema<br/>Drizzle schema<br/>[schema.js]"]
  node_migration["Initial migration<br/>SQL migration"]
  node_database[("Persistent database<br/>durable state")]
end

subgraph group_frontend["Frontend"]
  node_frontend_bootstrap["Frontend bootstrap<br/>React entry<br/>[index.tsx]"]
  node_app["Match application<br/>React composition<br/>[App.tsx]"]
  node_match_data_hook["Match data hook<br/>client state hook<br/>[useMatchData.ts]"]
  node_socket_hook["WebSocket hook<br/>realtime client hook<br/>[useWebSocket.ts]"]
  node_api_client["API client<br/>HTTP client<br/>[api.ts]"]
  node_match_card["Match card<br/>React component<br/>[MatchCard.tsx]"]
  node_live_feed["Live feed<br/>React component<br/>[LiveFeed.tsx]"]
  node_client_types["Client types<br/>TypeScript contracts<br/>[types.ts]"]
end

node_root_server -.->|"backend runtime"| node_backend_entry
node_backend_entry -->|"protects requests"| node_arcjet
node_backend_entry -->|"serves"| node_match_routes
node_backend_entry -->|"serves"| node_commentary_routes
node_backend_entry -->|"hosts"| node_ws_server
node_match_routes -->|"validates"| node_match_validation
node_commentary_routes -->|"validates"| node_commentary_validation
node_match_routes -->|"derives status"| node_match_status
node_match_routes -->|"reads and writes"| node_db_access
node_commentary_routes -->|"reads and writes"| node_db_access
node_db_access -->|"uses schema"| node_db_schema
node_db_access -->|"persists"| node_database
node_migration -->|"initializes"| node_database
node_match_routes -.->|"publishes changes"| node_ws_server
node_commentary_routes -.->|"publishes changes"| node_ws_server
node_frontend_bootstrap -->|"mounts"| node_app
node_app -->|"uses"| node_match_data_hook
node_app -->|"subscribes"| node_socket_hook
node_app -->|"renders"| node_match_card
node_app -->|"renders"| node_live_feed
node_match_data_hook -->|"fetches through"| node_api_client
node_api_client -->|"HTTP requests"| node_match_routes
node_api_client -->|"HTTP requests"| node_commentary_routes
node_socket_hook -->|"live events"| node_ws_server
node_match_data_hook -->|"uses"| node_client_types
node_match_card -->|"uses"| node_client_types
node_live_feed -->|"uses"| node_client_types

click node_root_server "https://github.com/ketan1412/websockets_base/blob/main/server.js"
click node_backend_entry "https://github.com/ketan1412/websockets_base/blob/main/backend/src/index.js"
click node_match_routes "https://github.com/ketan1412/websockets_base/blob/main/backend/src/routes/matches.js"
click node_commentary_routes "https://github.com/ketan1412/websockets_base/blob/main/backend/src/routes/commentary.js"
click node_match_validation "https://github.com/ketan1412/websockets_base/blob/main/backend/src/validation/matches.js"
click node_commentary_validation "https://github.com/ketan1412/websockets_base/blob/main/backend/src/validation/commentary.js"
click node_arcjet "https://github.com/ketan1412/websockets_base/blob/main/backend/src/arcjet.js"
click node_match_status "https://github.com/ketan1412/websockets_base/blob/main/backend/src/utils/match-status.js"
click node_ws_server "https://github.com/ketan1412/websockets_base/blob/main/backend/src/ws/server.js"
click node_db_access "https://github.com/ketan1412/websockets_base/blob/main/backend/src/db/db.js"
click node_db_schema "https://github.com/ketan1412/websockets_base/blob/main/backend/src/db/schema.js"
click node_migration "https://github.com/ketan1412/websockets_base/blob/main/backend/drizzle/0000_peaceful_satana.sql"
click node_frontend_bootstrap "https://github.com/ketan1412/websockets_base/blob/main/frontend/index.tsx"
click node_app "https://github.com/ketan1412/websockets_base/blob/main/frontend/App.tsx"
click node_match_data_hook "https://github.com/ketan1412/websockets_base/blob/main/frontend/hooks/useMatchData.ts"
click node_socket_hook "https://github.com/ketan1412/websockets_base/blob/main/frontend/hooks/useWebSocket.ts"
click node_api_client "https://github.com/ketan1412/websockets_base/blob/main/frontend/services/api.ts"
click node_match_card "https://github.com/ketan1412/websockets_base/blob/main/frontend/components/MatchCard.tsx"
click node_live_feed "https://github.com/ketan1412/websockets_base/blob/main/frontend/components/LiveFeed.tsx"
click node_client_types "https://github.com/ketan1412/websockets_base/blob/main/frontend/types.ts"

classDef toneNeutral fill:#f8fafc,stroke:#334155,stroke-width:1.5px,color:#0f172a
classDef toneBlue fill:#dbeafe,stroke:#2563eb,stroke-width:1.5px,color:#172554
classDef toneAmber fill:#fef3c7,stroke:#d97706,stroke-width:1.5px,color:#78350f
classDef toneMint fill:#dcfce7,stroke:#16a34a,stroke-width:1.5px,color:#14532d
classDef toneRose fill:#ffe4e6,stroke:#e11d48,stroke-width:1.5px,color:#881337
classDef toneIndigo fill:#e0e7ff,stroke:#4f46e5,stroke-width:1.5px,color:#312e81
classDef toneTeal fill:#ccfbf1,stroke:#0f766e,stroke-width:1.5px,color:#134e4a
class node_root_server,node_backend_entry,node_match_routes,node_commentary_routes,node_match_validation,node_commentary_validation,node_arcjet,node_match_status,node_ws_server toneBlue
class node_db_access,node_db_schema,node_migration,node_database toneAmber
class node_frontend_bootstrap,node_app,node_match_data_hook,node_socket_hook,node_api_client,node_match_card,node_live_feed,node_client_types toneMint
```

## Components

### Backend

Node.js API, domain, and realtime runtime.

- [Root server entry](https://github.com/ketan1412/websockets_base/blob/main/server.js): Node.js entry · `server.js`
- [Backend entry](https://github.com/ketan1412/websockets_base/blob/main/backend/src/index.js): Node.js entry · Orchestrates HTTP and WebSocket services. · `backend/src/index.js`
- [Match API](https://github.com/ketan1412/websockets_base/blob/main/backend/src/routes/matches.js): route module · `backend/src/routes/matches.js`
- [Commentary API](https://github.com/ketan1412/websockets_base/blob/main/backend/src/routes/commentary.js): route module · `backend/src/routes/commentary.js`
- [Match validation](https://github.com/ketan1412/websockets_base/blob/main/backend/src/validation/matches.js): validation contracts · `backend/src/validation/matches.js`
- [Commentary validation](https://github.com/ketan1412/websockets_base/blob/main/backend/src/validation/commentary.js): validation contracts · `backend/src/validation/commentary.js`
- [Arcjet protection](https://github.com/ketan1412/websockets_base/blob/main/backend/src/arcjet.js): security integration · External request-protection boundary. · `backend/src/arcjet.js`
- [Match status logic](https://github.com/ketan1412/websockets_base/blob/main/backend/src/utils/match-status.js): domain utility · `backend/src/utils/match-status.js`
- [WebSocket server](https://github.com/ketan1412/websockets_base/blob/main/backend/src/ws/server.js): realtime server · `backend/src/ws/server.js`

### Data layer

Durable match and commentary state.

- [Drizzle access](https://github.com/ketan1412/websockets_base/blob/main/backend/src/db/db.js): database access · `backend/src/db/db.js`
- [Database schema](https://github.com/ketan1412/websockets_base/blob/main/backend/src/db/schema.js): Drizzle schema · `backend/src/db/schema.js`
- [Initial migration](https://github.com/ketan1412/websockets_base/blob/main/backend/drizzle/0000_peaceful_satana.sql): SQL migration · `backend/drizzle/0000_peaceful_satana.sql`
- **Persistent database**: durable state · Stores match and commentary data.

### Frontend

Vite React browser application.

- [Frontend bootstrap](https://github.com/ketan1412/websockets_base/blob/main/frontend/index.tsx): React entry · `frontend/index.tsx`
- [Match application](https://github.com/ketan1412/websockets_base/blob/main/frontend/App.tsx): React composition · `frontend/App.tsx`
- [Match data hook](https://github.com/ketan1412/websockets_base/blob/main/frontend/hooks/useMatchData.ts): client state hook · Fetches and maintains match data. · `frontend/hooks/useMatchData.ts`
- [WebSocket hook](https://github.com/ketan1412/websockets_base/blob/main/frontend/hooks/useWebSocket.ts): realtime client hook · `frontend/hooks/useWebSocket.ts`
- [API client](https://github.com/ketan1412/websockets_base/blob/main/frontend/services/api.ts): HTTP client · `frontend/services/api.ts`
- [Match card](https://github.com/ketan1412/websockets_base/blob/main/frontend/components/MatchCard.tsx): React component · `frontend/components/MatchCard.tsx`
- [Live feed](https://github.com/ketan1412/websockets_base/blob/main/frontend/components/LiveFeed.tsx): React component · `frontend/components/LiveFeed.tsx`
- [Client types](https://github.com/ketan1412/websockets_base/blob/main/frontend/types.ts): TypeScript contracts · `frontend/types.ts`

## Connections

- Root server entry → Backend entry: backend runtime
- Backend entry → Arcjet protection: protects requests
- Backend entry → Match API: serves
- Backend entry → Commentary API: serves
- Backend entry → WebSocket server: hosts
- Match API → Match validation: validates
- Commentary API → Commentary validation: validates
- Match API → Match status logic: derives status
- Match API → Drizzle access: reads and writes
- Commentary API → Drizzle access: reads and writes
- Drizzle access → Database schema: uses schema
- Drizzle access → Persistent database: persists
- Initial migration → Persistent database: initializes
- Match API → WebSocket server: publishes changes
- Commentary API → WebSocket server: publishes changes
- Frontend bootstrap → Match application: mounts
- Match application → Match data hook: uses
- Match application → WebSocket hook: subscribes
- Match application → Match card: renders
- Match application → Live feed: renders
- Match data hook → API client: fetches through
- API client → Match API: HTTP requests
- API client → Commentary API: HTTP requests
- WebSocket hook → WebSocket server: live events
- Match data hook → Client types: uses
- Match card → Client types: uses
- Live feed → Client types: uses