# mvddmn/datausers-api architecture

> Architecture diagram of the GitHub repository mvddmn/datausers-api, generated by GitDiagram from its file tree, README and a sample of source files (last updated 2026-11-12). It is an AI-made overview: check details against the source.

- Interactive diagram: https://gitdiagram.com/mvddmn/datausers-api
- Repository: https://github.com/mvddmn/datausers-api

## Overview

datausers-api is a small Express API for testing and development with user records and unique IDs. A client sends requests to the server, which mounts the users router at `/api/users`; the router lists, retrieves, creates, updates, and deletes users through the Mongoose User model. The server also connects to MongoDB. The excerpts show the route-to-model calls and connection setup; they do not establish a separate model-to-database call, so that link is omitted.

Main entry points: [`index.js`](https://github.com/mvddmn/datausers-api/blob/main/index.js) (Express server), [`routes/users.js`](https://github.com/mvddmn/datausers-api/blob/main/routes/users.js) (User routes), [`models/User.js`](https://github.com/mvddmn/datausers-api/blob/main/models/User.js) (User model)

## Diagram (Mermaid)

```mermaid
flowchart TD

subgraph group_runtime["API runtime"]
  node_server["Express server<br/>[index.js]"]
end

subgraph group_users["User API"]
  node_user_routes["User routes<br/>[users.js]"]
end

subgraph group_persistence["Persistence"]
  node_user_model["User model<br/>[User.js]"]
  node_mongodb[("MongoDB")]
end

node_client(("API client"))

node_client -->|"sends requests"| node_server
node_server -->|"mounts routes"| node_user_routes
node_user_routes -->|"queries and mutates"| node_user_model
node_server -->|"connects to"| node_mongodb

click node_server "https://github.com/mvddmn/datausers-api/blob/main/index.js"
click node_user_routes "https://github.com/mvddmn/datausers-api/blob/main/routes/users.js"
click node_user_model "https://github.com/mvddmn/datausers-api/blob/main/models/User.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_server,node_client toneBlue
class node_user_routes toneAmber
class node_user_model,node_mongodb toneMint
```

## Components

### API runtime

- [Express server](https://github.com/mvddmn/datausers-api/blob/main/index.js): `index.js`

### User API

- [User routes](https://github.com/mvddmn/datausers-api/blob/main/routes/users.js): `routes/users.js`

### Persistence

- [User model](https://github.com/mvddmn/datausers-api/blob/main/models/User.js): `models/User.js`
- **MongoDB**

### Other components

- **API client**

## Connections

- API client → Express server: sends requests (evidence: `index.js`)
- Express server → User routes: mounts routes (evidence: `index.js`)
- User routes → User model: queries and mutates (evidence: `routes/users.js`)
- Express server → MongoDB: connects to (evidence: `index.js`)