# reyaansh72/minectrl architecture

> Architecture diagram of the GitHub repository reyaansh72/minectrl, generated by GitDiagram from its file tree, README and a sample of source files (last updated 2026-06-12). It is an AI-made overview: check details against the source.

- Interactive diagram: https://gitdiagram.com/reyaansh72/minectrl
- Repository: https://github.com/reyaansh72/minectrl

## Overview

1. **Overall shape**
   - MineCtrl is a very small, single-process Node.js application.
   - The architecture centers on one entrypoint, `server.js`, which likely owns HTTP serving, dashboard logic, and any user/auth handling.

2. **Primary runtime**
   - The app runs on **Node.js v16+**.
   - The HTTP layer is built with **Express**, with **cors** added for cross-origin browser access if needed.

3. **Main external interface**
   - The system is accessed through a **web browser** at `http://localhost:3000`.
   - That makes the browser the UI client, and the Node/Express server the backend boundary.

4. **Backend responsibility**
   - `server.js` is the functional core of the repo and probably exposes both page responses and server-side control endpoints.
   - Since there are no separate frontend source files in the tree, the dashboard UI is likely served from the same server or embedded in the server code.

5. **Data storage boundary**
   - User data is stored locally in **`Users.json`**.
   - This means the repository uses a file-based persistence model rather than a database service like MySQL/Postgres/MongoDB.

6. **Authentication/user management**
   - The README calls out “simple authentication” via `Users.json`, so login/user lookup is a key subsystem.
   - A likely data flow is: browser submits credentials → `server.js` validates against `Users.json` → server returns access or rejection.

7. **Monitoring/control domain**
   - The product is positioned as a Minecraft server dashboard, so the app’s purpose is to present server state and controls through the web UI.
   - The actual Minecraft server is an external managed target, not part of this repo, so it should be shown as a separate system boundary in a diagram.

8. **Deployment model**
   - The repository is intended to run locally or on a host machine with a single command: `node server.js`.
   - There is no sign of containers, background workers, message brokers, or distributed services in the repo structure.

9. **Configuration and dependencies**
   - `package.json` holds project metadata and dependencies; the README explicitly mentions `express` and `cors`.
   - There is no evidence of a build step, frontend bundler, or separate asset pipeline.

10. **Operational constraints**
   - The server uses **port 3000** by default.
   - Because user data lives in a local JSON file, persistence is tied to the filesystem of the machine running the server.

11. **Important architectural implication**
   - The system is intentionally lightweight and monolithic: UI delivery, API logic, auth, and local state management are all concentrated in one Node service.
   - That makes the main diagram boundary simple: Browser ↔ Express app ↔ local JSON storage, plus an external Minecraft server being monitored or controlled.

12. **What is not present**
   - No separate database, no queueing layer, no microservices, and no separate frontend app are visible in the repository layout.
   - Any architecture diagram should therefore stay focused on a small, self-contained dashboard service rather than a larger platform.

Main entry points: [`server.js`](https://github.com/reyaansh72/minectrl/blob/main/server.js) (Server), [`package.json`](https://github.com/reyaansh72/minectrl/blob/main/package.json) (Dependencies), [`Users.json`](https://github.com/reyaansh72/minectrl/blob/main/Users.json) (Users data)

## Diagram (Mermaid)

```mermaid
flowchart TD

subgraph group_app["MineCtrl app"]
  node_server_js["Server<br/>Node entrypoint<br/>[server.js]"]
  node_http_layer["HTTP API<br/>Express layer<br/>[server.js]"]
  node_auth["Auth<br/>login logic<br/>[server.js]"]
  node_dashboard["Dashboard<br/>control UI<br/>[server.js]"]
  node_users_json[("Users data<br/>local JSON store<br/>[Users.json]")]
  node_package_json["Dependencies<br/>npm manifest<br/>[package.json]"]
end

subgraph group_external["External systems"]
  node_browser(("Browser<br/>ui client"))
  node_minecraft["Minecraft server<br/>managed target"]
end

node_browser -->|"HTTP requests"| node_server_js
node_server_js -->|"serves"| node_http_layer
node_server_js -->|"checks login"| node_auth
node_auth -->|"reads"| node_users_json
node_server_js -->|"renders"| node_dashboard
node_server_js -->|"controls"| node_minecraft
node_package_json -->|"defines deps"| node_server_js
node_browser -.->|"uses"| node_dashboard

click node_server_js "https://github.com/reyaansh72/minectrl/blob/main/server.js"
click node_http_layer "https://github.com/reyaansh72/minectrl/blob/main/server.js"
click node_auth "https://github.com/reyaansh72/minectrl/blob/main/server.js"
click node_dashboard "https://github.com/reyaansh72/minectrl/blob/main/server.js"
click node_users_json "https://github.com/reyaansh72/minectrl/blob/main/Users.json"
click node_package_json "https://github.com/reyaansh72/minectrl/blob/main/package.json"

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_server_js,node_http_layer,node_auth,node_dashboard,node_users_json,node_package_json toneBlue
class node_browser,node_minecraft toneAmber
```

## Components

### MineCtrl app

Single-process Node.js dashboard and control service

- [Server](https://github.com/reyaansh72/minectrl/blob/main/server.js): Node entrypoint · Main Express application and request handler · `server.js`
- [HTTP API](https://github.com/reyaansh72/minectrl/blob/main/server.js): Express layer · Routes and browser-facing responses · `server.js`
- [Auth](https://github.com/reyaansh72/minectrl/blob/main/server.js): login logic · Simple user validation against local users data · `server.js`
- [Dashboard](https://github.com/reyaansh72/minectrl/blob/main/server.js): control UI · Served status and control interface for MineCtrl · `server.js`
- [Users data](https://github.com/reyaansh72/minectrl/blob/main/Users.json): local JSON store · Filesystem-backed user records and credentials · `Users.json`
- [Dependencies](https://github.com/reyaansh72/minectrl/blob/main/package.json): npm manifest · Project metadata and runtime packages such as Express and cors · `package.json`

### External systems

User client and managed Minecraft server

- **Browser**: ui client · Web browser accessing the dashboard
- **Minecraft server**: managed target · External server being monitored or controlled

## Connections

- Browser → Server: HTTP requests · Browser sends dashboard and login traffic
- Server → HTTP API: serves · Entrypoint exposes browser-facing endpoints
- Server → Auth: checks login · Validates credentials and user access
- Auth → Users data: reads · Looks up users from local JSON storage
- Server → Dashboard: renders · Returns the dashboard interface and responses
- Server → Minecraft server: controls · Issues status or control actions for the managed server
- Dependencies → Server: defines deps · Provides runtime package metadata for the Node app
- Browser → Dashboard: uses · User operates the dashboard through the browser