# jaiswaladi246/3-tier-user-platform-project architecture

> Architecture diagram of the GitHub repository jaiswaladi246/3-tier-user-platform-project, generated by GitDiagram from its file tree, README and a sample of source files (last updated 2026-09-29). It is an AI-made overview: check details against the source.

- Interactive diagram: https://gitdiagram.com/jaiswaladi246/3-tier-user-platform-project
- Repository: https://github.com/jaiswaladi246/3-tier-user-platform-project

## Overview

This is a three-tier user-management application: users view and create accounts through a browser UI, which calls an HTTP API backed by MySQL. The sampled files show overlapping implementations rather than one fully unified runtime: `server/server.js` defines its own API and database connection, while `server/app.js` mounts a separate routes/controller/model stack. The React app and older DOM client also use different UI paths. The README provides no capability details; links between these parallel implementations are omitted where source does not establish wiring.

Main entry points: [`client/src/components/UsersList.js`](https://github.com/jaiswaladi246/3-tier-user-platform-project/blob/main/client/src/components/UsersList.js) (Users list), [`server/server.js`](https://github.com/jaiswaladi246/3-tier-user-platform-project/blob/main/server/server.js) (Standalone server), [`client/src/App.js`](https://github.com/jaiswaladi246/3-tier-user-platform-project/blob/main/client/src/App.js) (React app), [`client/src/api/users.js`](https://github.com/jaiswaladi246/3-tier-user-platform-project/blob/main/client/src/api/users.js) (Client API)

## Diagram (Mermaid)

```mermaid
flowchart TD

subgraph group_browser["Browser interfaces"]
  node_reactapp["React app<br/>[App.js]"]
  node_userslist["Users list<br/>[UsersList.js]"]
  node_useritem["User item<br/>[UserItem.js]"]
  node_clientapi["Client API<br/>[users.js]"]
  node_domclient["DOM client<br/>[index.js]"]
end

subgraph group_api["HTTP APIs"]
  node_mainserver["Standalone server<br/>[server.js]"]
end

subgraph group_data["User data"]
  node_dbconfig["DB connection<br/>[db.js]"]
  node_mysql[("MySQL")]
end

subgraph group_modular["Modular server"]
  node_modapp["API app<br/>[app.js]"]
  node_routes["User routes<br/>[userRoutes.js]"]
  node_controller["User controller<br/>[userController.js]"]
  node_model["User model<br/>[userModel.js]"]
end

node_user(("User"))

node_user -->|"uses"| node_reactapp
node_reactapp -->|"requests users"| node_mainserver
node_mainserver -->|"queries users"| node_mysql
node_user -->|"uses"| node_userslist
node_userslist -->|"calls"| node_clientapi
node_userslist -->|"renders"| node_useritem
node_clientapi -->|"HTTP requests"| node_modapp
node_user -->|"uses"| node_domclient
node_domclient -->|"CRUD requests"| node_mainserver
node_modapp -->|"mounts routes"| node_routes
node_routes -->|"dispatches"| node_controller
node_controller -->|"calls"| node_model
node_model -->|"queries through"| node_dbconfig
node_dbconfig -->|"connects"| node_mysql

click node_reactapp "https://github.com/jaiswaladi246/3-tier-user-platform-project/blob/main/client/src/App.js"
click node_userslist "https://github.com/jaiswaladi246/3-tier-user-platform-project/blob/main/client/src/components/UsersList.js"
click node_useritem "https://github.com/jaiswaladi246/3-tier-user-platform-project/blob/main/client/src/components/UserItem.js"
click node_clientapi "https://github.com/jaiswaladi246/3-tier-user-platform-project/blob/main/client/src/api/users.js"
click node_domclient "https://github.com/jaiswaladi246/3-tier-user-platform-project/blob/main/client/src/index.js"
click node_mainserver "https://github.com/jaiswaladi246/3-tier-user-platform-project/blob/main/server/server.js"
click node_modapp "https://github.com/jaiswaladi246/3-tier-user-platform-project/blob/main/server/app.js"
click node_routes "https://github.com/jaiswaladi246/3-tier-user-platform-project/blob/main/server/routes/userRoutes.js"
click node_controller "https://github.com/jaiswaladi246/3-tier-user-platform-project/blob/main/server/controllers/userController.js"
click node_model "https://github.com/jaiswaladi246/3-tier-user-platform-project/blob/main/server/models/userModel.js"
click node_dbconfig "https://github.com/jaiswaladi246/3-tier-user-platform-project/blob/main/server/config/db.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_reactapp,node_userslist,node_useritem,node_clientapi,node_domclient,node_user toneBlue
class node_mainserver toneAmber
class node_dbconfig,node_mysql toneMint
class node_modapp,node_routes,node_controller,node_model toneRose
```

## Components

### Browser interfaces

- [React app](https://github.com/jaiswaladi246/3-tier-user-platform-project/blob/main/client/src/App.js): `client/src/App.js`
- [Users list](https://github.com/jaiswaladi246/3-tier-user-platform-project/blob/main/client/src/components/UsersList.js): `client/src/components/UsersList.js`
- [User item](https://github.com/jaiswaladi246/3-tier-user-platform-project/blob/main/client/src/components/UserItem.js): `client/src/components/UserItem.js`
- [Client API](https://github.com/jaiswaladi246/3-tier-user-platform-project/blob/main/client/src/api/users.js): `client/src/api/users.js`
- [DOM client](https://github.com/jaiswaladi246/3-tier-user-platform-project/blob/main/client/src/index.js): `client/src/index.js`

### HTTP APIs

- [Standalone server](https://github.com/jaiswaladi246/3-tier-user-platform-project/blob/main/server/server.js): `server/server.js`

### User data

- [DB connection](https://github.com/jaiswaladi246/3-tier-user-platform-project/blob/main/server/config/db.js): `server/config/db.js`
- **MySQL**

### Modular server

- [API app](https://github.com/jaiswaladi246/3-tier-user-platform-project/blob/main/server/app.js): `server/app.js`
- [User routes](https://github.com/jaiswaladi246/3-tier-user-platform-project/blob/main/server/routes/userRoutes.js): `server/routes/userRoutes.js`
- [User controller](https://github.com/jaiswaladi246/3-tier-user-platform-project/blob/main/server/controllers/userController.js): `server/controllers/userController.js`
- [User model](https://github.com/jaiswaladi246/3-tier-user-platform-project/blob/main/server/models/userModel.js): `server/models/userModel.js`

### Other components

- **User**

## Connections

- User → React app: uses
- React app → Standalone server: requests users
- Standalone server → MySQL: queries users
- User → Users list: uses
- Users list → Client API: calls
- Users list → User item: renders
- Client API → API app: HTTP requests
- User → DOM client: uses
- DOM client → Standalone server: CRUD requests
- API app → User routes: mounts routes
- User routes → User controller: dispatches
- User controller → User model: calls
- User model → DB connection: queries through
- DB connection → MySQL: connects