# pujyank2006/hyperlocal-marketplace architecture

> Architecture diagram of the GitHub repository pujyank2006/hyperlocal-marketplace, generated by GitDiagram from its file tree, README and a sample of source files (last updated 2026-09-27). It is an AI-made overview: check details against the source.

- Interactive diagram: https://gitdiagram.com/pujyank2006/hyperlocal-marketplace
- Repository: https://github.com/pujyank2006/hyperlocal-marketplace

## Overview

This is a hyperlocal marketplace with a React client and Express/MongoDB backend. The main user journey is account access, browsing the marketplace, managing a profile, and creating or viewing listings. The graph preserves those product areas and the backend’s auth, profile, and listing stages. Some frontend pages and listing-form implementation were not sampled, so uncertain client-to-endpoint wiring is omitted.

Main entry points: [`Backend/server.js`](https://github.com/pujyank2006/hyperlocal-marketplace/blob/main/Backend/server.js) (HTTP server), [`frontend/src/App.js`](https://github.com/pujyank2006/hyperlocal-marketplace/blob/main/frontend/src/App.js) (Route shell), [`frontend/src/pages/profile.js`](https://github.com/pujyank2006/hyperlocal-marketplace/blob/main/frontend/src/pages/profile.js) (Profile management), [`Backend/routes/authRouter.js`](https://github.com/pujyank2006/hyperlocal-marketplace/blob/main/Backend/routes/authRouter.js) (Auth routes)

## Diagram (Mermaid)

```mermaid
flowchart TD

subgraph group_client["Marketplace client"]
  node_app["Route shell<br/>[App.js]"]
  node_home["Marketplace home<br/>[homePage.js]"]
  node_authpages["Login and signup<br/>[loginPage.js]"]
  node_dashboard["Dashboard<br/>[dashboard.js]"]
  node_profile["Profile management<br/>[profile.js]"]
  node_createform["Listing form<br/>[createListing.js]"]
end

subgraph group_api["Backend API"]
  node_server["HTTP server<br/>[server.js]"]
  node_authroutes["Auth routes<br/>[authRouter.js]"]
  node_authvalidation["Auth validation<br/>[authMiddleware.js]"]
  node_authcontroller["Authentication<br/>[authController.js]"]
  node_useroutes["Profile routes"]
  node_usercontroller["Profile operations"]
  node_listingroutes["Listing routes<br/>[listingsRouter.js]"]
  node_listingcontroller["Listing operations"]
  node_uploads["Image upload storage<br/>[server.js]"]
end

subgraph group_data["Persistence"]
  node_connect["Database connection<br/>[connectDb.js]"]
  node_usermodel[("User records<br/>[user.js]")]
  node_listingmodel[("Listing records<br/>[listings.js]")]
end

node_browser(("Marketplace user"))
node_mongo[("MongoDB")]

node_browser -->|"uses"| node_app
node_app -->|"routes"| node_home
node_app -->|"routes"| node_authpages
node_app -->|"routes"| node_dashboard
node_app -->|"routes"| node_profile
node_profile -->|"renders"| node_createform
node_profile -->|"fetches profile"| node_server
node_server -->|"mounts"| node_authroutes
node_server -->|"mounts"| node_useroutes
node_server -->|"mounts"| node_listingroutes
node_server -->|"stores images"| node_uploads
node_authroutes -->|"validates"| node_authvalidation
node_authroutes -->|"dispatches"| node_authcontroller
node_useroutes -->|"dispatches"| node_usercontroller
node_listingroutes -->|"dispatches"| node_listingcontroller
node_authcontroller -->|"reads and writes"| node_usermodel
node_usercontroller -->|"reads and updates"| node_usermodel
node_listingcontroller -->|"reads and writes"| node_listingmodel
node_listingcontroller -->|"records image paths"| node_uploads
node_server -->|"connects"| node_connect
node_connect -->|"opens connection"| node_mongo
node_usermodel -->|"persists records"| node_mongo
node_listingmodel -->|"persists records"| node_mongo

click node_app "https://github.com/pujyank2006/hyperlocal-marketplace/blob/main/frontend/src/App.js"
click node_home "https://github.com/pujyank2006/hyperlocal-marketplace/blob/main/frontend/src/pages/homePage.js"
click node_authpages "https://github.com/pujyank2006/hyperlocal-marketplace/blob/main/frontend/src/pages/loginPage.js"
click node_dashboard "https://github.com/pujyank2006/hyperlocal-marketplace/blob/main/frontend/src/pages/dashboard.js"
click node_profile "https://github.com/pujyank2006/hyperlocal-marketplace/blob/main/frontend/src/pages/profile.js"
click node_createform "https://github.com/pujyank2006/hyperlocal-marketplace/blob/main/frontend/src/Components/createListing.js"
click node_server "https://github.com/pujyank2006/hyperlocal-marketplace/blob/main/Backend/server.js"
click node_authroutes "https://github.com/pujyank2006/hyperlocal-marketplace/blob/main/Backend/routes/authRouter.js"
click node_authvalidation "https://github.com/pujyank2006/hyperlocal-marketplace/blob/main/Backend/middlewares/authMiddleware.js"
click node_authcontroller "https://github.com/pujyank2006/hyperlocal-marketplace/blob/main/Backend/controllers/authController.js"
click node_useroutes "https://github.com/pujyank2006/hyperlocal-marketplace/blob/main/Backend/routes/userDetailsRouter.js"
click node_usercontroller "https://github.com/pujyank2006/hyperlocal-marketplace/blob/main/Backend/controllers/userDetailsController.js"
click node_listingroutes "https://github.com/pujyank2006/hyperlocal-marketplace/blob/main/Backend/routes/listingsRouter.js"
click node_listingcontroller "https://github.com/pujyank2006/hyperlocal-marketplace/blob/main/Backend/controllers/listingsController.js"
click node_uploads "https://github.com/pujyank2006/hyperlocal-marketplace/blob/main/Backend/server.js"
click node_connect "https://github.com/pujyank2006/hyperlocal-marketplace/blob/main/Backend/connectDb.js"
click node_usermodel "https://github.com/pujyank2006/hyperlocal-marketplace/blob/main/Backend/models/user.js"
click node_listingmodel "https://github.com/pujyank2006/hyperlocal-marketplace/blob/main/Backend/models/listings.js"

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_app,node_home,node_authpages,node_dashboard,node_profile,node_createform,node_browser toneBlue
class node_server,node_authroutes,node_authvalidation,node_authcontroller,node_useroutes,node_usercontroller,node_listingroutes,node_listingcontroller,node_uploads,node_mongo toneAmber
class node_connect,node_usermodel,node_listingmodel toneMint
```

## Components

### Marketplace client

- [Route shell](https://github.com/pujyank2006/hyperlocal-marketplace/blob/main/frontend/src/App.js): `frontend/src/App.js`
- [Marketplace home](https://github.com/pujyank2006/hyperlocal-marketplace/blob/main/frontend/src/pages/homePage.js): `frontend/src/pages/homePage.js`
- [Login and signup](https://github.com/pujyank2006/hyperlocal-marketplace/blob/main/frontend/src/pages/loginPage.js): `frontend/src/pages/loginPage.js`
- [Dashboard](https://github.com/pujyank2006/hyperlocal-marketplace/blob/main/frontend/src/pages/dashboard.js): `frontend/src/pages/dashboard.js`
- [Profile management](https://github.com/pujyank2006/hyperlocal-marketplace/blob/main/frontend/src/pages/profile.js): `frontend/src/pages/profile.js`
- [Listing form](https://github.com/pujyank2006/hyperlocal-marketplace/blob/main/frontend/src/Components/createListing.js): `frontend/src/Components/createListing.js`

### Backend API

- [HTTP server](https://github.com/pujyank2006/hyperlocal-marketplace/blob/main/Backend/server.js): `Backend/server.js`
- [Auth routes](https://github.com/pujyank2006/hyperlocal-marketplace/blob/main/Backend/routes/authRouter.js): `Backend/routes/authRouter.js`
- [Auth validation](https://github.com/pujyank2006/hyperlocal-marketplace/blob/main/Backend/middlewares/authMiddleware.js): `Backend/middlewares/authMiddleware.js`
- [Authentication](https://github.com/pujyank2006/hyperlocal-marketplace/blob/main/Backend/controllers/authController.js): `Backend/controllers/authController.js`
- [Profile routes](https://github.com/pujyank2006/hyperlocal-marketplace/blob/main/Backend/routes/userDetailsRouter.js): `Backend/routes/userDetailsRouter.js`
- [Profile operations](https://github.com/pujyank2006/hyperlocal-marketplace/blob/main/Backend/controllers/userDetailsController.js): `Backend/controllers/userDetailsController.js`
- [Listing routes](https://github.com/pujyank2006/hyperlocal-marketplace/blob/main/Backend/routes/listingsRouter.js): `Backend/routes/listingsRouter.js`
- [Listing operations](https://github.com/pujyank2006/hyperlocal-marketplace/blob/main/Backend/controllers/listingsController.js): `Backend/controllers/listingsController.js`
- [Image upload storage](https://github.com/pujyank2006/hyperlocal-marketplace/blob/main/Backend/server.js): `Backend/server.js`

### Persistence

- [Database connection](https://github.com/pujyank2006/hyperlocal-marketplace/blob/main/Backend/connectDb.js): `Backend/connectDb.js`
- [User records](https://github.com/pujyank2006/hyperlocal-marketplace/blob/main/Backend/models/user.js): `Backend/models/user.js`
- [Listing records](https://github.com/pujyank2006/hyperlocal-marketplace/blob/main/Backend/models/listings.js): `Backend/models/listings.js`

### Other components

- **Marketplace user**
- **MongoDB**

## Connections

- Marketplace user → Route shell: uses
- Route shell → Marketplace home: routes
- Route shell → Login and signup: routes
- Route shell → Dashboard: routes
- Route shell → Profile management: routes
- Profile management → Listing form: renders
- Profile management → HTTP server: fetches profile
- HTTP server → Auth routes: mounts
- HTTP server → Profile routes: mounts
- HTTP server → Listing routes: mounts
- HTTP server → Image upload storage: stores images
- Auth routes → Auth validation: validates
- Auth routes → Authentication: dispatches
- Profile routes → Profile operations: dispatches
- Listing routes → Listing operations: dispatches
- Authentication → User records: reads and writes
- Profile operations → User records: reads and updates
- Listing operations → Listing records: reads and writes
- Listing operations → Image upload storage: records image paths
- HTTP server → Database connection: connects
- Database connection → MongoDB: opens connection
- User records → MongoDB: persists records
- Listing records → MongoDB: persists records