# mate-academy/claude-ship-a-change-end-to-end architecture

> Architecture diagram of the GitHub repository mate-academy/claude-ship-a-change-end-to-end, 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/mate-academy/claude-ship-a-change-end-to-end
- Repository: https://github.com/mate-academy/claude-ship-a-change-end-to-end

## Overview

This is a small Express API. A client sends requests to the server, which dispatches them to the users or health routes. The users route lists, fetches, and creates users through the in-memory store; the health route returns a liveness response. The README describes an update-user feature as the project’s target, but the sampled route and store source do not yet implement it.

Main entry points: [`server.js`](https://github.com/mate-academy/claude-ship-a-change-end-to-end/blob/main/server.js) (Express app), [`routes/users.js`](https://github.com/mate-academy/claude-ship-a-change-end-to-end/blob/main/routes/users.js) (Users routes), [`db/store.js`](https://github.com/mate-academy/claude-ship-a-change-end-to-end/blob/main/db/store.js) (User store), [`routes/health.js`](https://github.com/mate-academy/claude-ship-a-change-end-to-end/blob/main/routes/health.js) (Health route)

## Diagram (Mermaid)

```mermaid
flowchart TD

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

subgraph group_users["Users resource"]
  node_users_route["Users routes<br/>[users.js]"]
  node_store["User store<br/>[store.js]"]
  node_user_data[("In-memory users<br/>[store.js]")]
end

subgraph group_health["Health check"]
  node_health_route["Health route<br/>[health.js]"]
end

node_client(("HTTP client"))

node_client -->|"sends requests"| node_server
node_server -->|"mounts /users"| node_users_route
node_server -->|"mounts /health"| node_health_route
node_users_route -->|"calls data helpers"| node_store
node_store -->|"reads and writes"| node_user_data
node_health_route -->|"returns status"| node_client
node_users_route -->|"returns user responses"| node_client

click node_server "https://github.com/mate-academy/claude-ship-a-change-end-to-end/blob/main/server.js"
click node_users_route "https://github.com/mate-academy/claude-ship-a-change-end-to-end/blob/main/routes/users.js"
click node_store "https://github.com/mate-academy/claude-ship-a-change-end-to-end/blob/main/db/store.js"
click node_user_data "https://github.com/mate-academy/claude-ship-a-change-end-to-end/blob/main/db/store.js"
click node_health_route "https://github.com/mate-academy/claude-ship-a-change-end-to-end/blob/main/routes/health.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_users_route,node_store,node_user_data toneAmber
class node_health_route toneMint
```

## Components

### API runtime

- [Express app](https://github.com/mate-academy/claude-ship-a-change-end-to-end/blob/main/server.js): `server.js`

### Users resource

- [Users routes](https://github.com/mate-academy/claude-ship-a-change-end-to-end/blob/main/routes/users.js): `routes/users.js`
- [User store](https://github.com/mate-academy/claude-ship-a-change-end-to-end/blob/main/db/store.js): `db/store.js`
- [In-memory users](https://github.com/mate-academy/claude-ship-a-change-end-to-end/blob/main/db/store.js): `db/store.js`

### Health check

- [Health route](https://github.com/mate-academy/claude-ship-a-change-end-to-end/blob/main/routes/health.js): `routes/health.js`

### Other components

- **HTTP client**

## Connections

- HTTP client → Express app: sends requests
- Express app → Users routes: mounts /users
- Express app → Health route: mounts /health
- Users routes → User store: calls data helpers
- User store → In-memory users: reads and writes
- Health route → HTTP client: returns status
- Users routes → HTTP client: returns user responses