# tusharsaxena18/underlay-backend architecture

> Architecture diagram of the GitHub repository tusharsaxena18/underlay-backend, generated by GitDiagram from its file tree, README and a sample of source files (last updated 2026-09-30). It is an AI-made overview: check details against the source.

- Interactive diagram: https://gitdiagram.com/tusharsaxena18/underlay-backend
- Repository: https://github.com/tusharsaxena18/underlay-backend

## Overview

UnderLay Backend is a minimal Express API scaffold. Its visible workflow starts with server initialization, connects to MongoDB, and exposes a health endpoint; the only implemented route returns a status message. The agent, service, and schema files are empty in the excerpts, so no application or agent workflow can be established. The graph reflects only the sampled runtime wiring.

Main entry points: [`src/routes/mainRoutes.ts`](https://github.com/tusharsaxena18/underlay-backend/blob/master/src/routes/mainRoutes.ts) (Health route), [`src/server.ts`](https://github.com/tusharsaxena18/underlay-backend/blob/master/src/server.ts) (Express server), [`src/config/dbConn.ts`](https://github.com/tusharsaxena18/underlay-backend/blob/master/src/config/dbConn.ts) (DB connector)

## Diagram (Mermaid)

```mermaid
flowchart TD

subgraph group_api["API runtime"]
  node_server["Express server<br/>[server.ts]"]
  node_routes["Health route<br/>[mainRoutes.ts]"]
end

subgraph group_persistence["Persistence"]
  node_dbconn["DB connector<br/>[dbConn.ts]"]
end

node_client(("HTTP client"))
node_mongodb[("MongoDB")]

node_server -->|"connects on startup"| node_dbconn
node_server -->|"mounts at /api"| node_routes
node_client -->|"requests health"| node_routes
node_routes -->|"returns status"| node_client
node_dbconn -->|"connects"| node_mongodb

click node_server "https://github.com/tusharsaxena18/underlay-backend/blob/master/src/server.ts"
click node_routes "https://github.com/tusharsaxena18/underlay-backend/blob/master/src/routes/mainRoutes.ts"
click node_dbconn "https://github.com/tusharsaxena18/underlay-backend/blob/master/src/config/dbConn.ts"

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_routes,node_client toneBlue
class node_dbconn,node_mongodb toneAmber
```

## Components

### API runtime

- [Express server](https://github.com/tusharsaxena18/underlay-backend/blob/master/src/server.ts): `src/server.ts`
- [Health route](https://github.com/tusharsaxena18/underlay-backend/blob/master/src/routes/mainRoutes.ts): `src/routes/mainRoutes.ts`

### Persistence

- [DB connector](https://github.com/tusharsaxena18/underlay-backend/blob/master/src/config/dbConn.ts): `src/config/dbConn.ts`

### Other components

- **HTTP client**
- **MongoDB**

## Connections

- Express server → DB connector: connects on startup (evidence: `src/server.ts`)
- Express server → Health route: mounts at /api (evidence: `src/server.ts`)
- HTTP client → Health route: requests health (evidence: `src/routes/mainRoutes.ts`)
- Health route → HTTP client: returns status (evidence: `src/routes/mainRoutes.ts`)
- DB connector → MongoDB: connects (evidence: `src/config/dbConn.ts`)