# kautilya9211/live-weather-app architecture

> Architecture diagram of the GitHub repository kautilya9211/live-weather-app, generated by GitDiagram from its file tree, README and a sample of source files (last updated 2026-09-28). It is an AI-made overview: check details against the source.

- Interactive diagram: https://gitdiagram.com/kautilya9211/live-weather-app
- Repository: https://github.com/kautilya9211/live-weather-app

## Overview

The app lets a user search for a city, sends the request through the React app to an Express endpoint, and returns live weather data from OpenWeather for display. The sampled frontend renders temperature, conditions, humidity, wind, and a remote weather icon. Location-based weather, dark mode, and responsive UI are documented capabilities; their implementation and wiring were not sampled, so they are shown as documented features rather than detailed flows.

Main entry points: [`frontend/src/App.js`](https://github.com/kautilya9211/live-weather-app/blob/master/frontend/src/App.js) (Search and display), [`backend/server.js`](https://github.com/kautilya9211/live-weather-app/blob/master/backend/server.js) (City weather endpoint), [`frontend/src/App.css`](https://github.com/kautilya9211/live-weather-app/blob/master/frontend/src/App.css) (Dark mode and responsive UI)

## Diagram (Mermaid)

```mermaid
flowchart TD

subgraph group_frontend["Weather interface"]
  node_app["Search and display<br/>[App.js]"]
  node_presentation["Dark mode and responsive UI<br/>[App.css]"]
  node_location["Location weather"]
end

subgraph group_backend["Weather API"]
  node_endpoint["City weather endpoint<br/>[server.js]"]
end

subgraph group_external["External services"]
  node_openweather{{"OpenWeather API"}}
  node_icons{{"Weather icon images"}}
end

node_user(("User"))

node_user -->|"searches city"| node_app
node_app -->|"requests weather"| node_endpoint
node_endpoint -->|"queries city"| node_openweather
node_openweather -->|"returns weather"| node_endpoint
node_endpoint -->|"returns JSON"| node_app
node_app -->|"displays weather"| node_user
node_app -->|"loads icon"| node_icons
node_app -->|"uses styles"| node_presentation

click node_app "https://github.com/kautilya9211/live-weather-app/blob/master/frontend/src/App.js"
click node_presentation "https://github.com/kautilya9211/live-weather-app/blob/master/frontend/src/App.css"
click node_location "https://github.com/kautilya9211/live-weather-app/tree/master/frontend/src"
click node_endpoint "https://github.com/kautilya9211/live-weather-app/blob/master/backend/server.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_app,node_presentation,node_location,node_user toneBlue
class node_endpoint toneAmber
class node_openweather,node_icons toneMint
```

## Components

### Weather interface

- [Search and display](https://github.com/kautilya9211/live-weather-app/blob/master/frontend/src/App.js): `frontend/src/App.js`
- [Dark mode and responsive UI](https://github.com/kautilya9211/live-weather-app/blob/master/frontend/src/App.css): `frontend/src/App.css`
- [Location weather](https://github.com/kautilya9211/live-weather-app/tree/master/frontend/src): `frontend/src`

### Weather API

- [City weather endpoint](https://github.com/kautilya9211/live-weather-app/blob/master/backend/server.js): `backend/server.js`

### External services

- **OpenWeather API**
- **Weather icon images**

### Other components

- **User**

## Connections

- User → Search and display: searches city
- Search and display → City weather endpoint: requests weather
- City weather endpoint → OpenWeather API: queries city
- OpenWeather API → City weather endpoint: returns weather
- City weather endpoint → Search and display: returns JSON
- Search and display → User: displays weather
- Search and display → Weather icon images: loads icon
- Search and display → Dark mode and responsive UI: uses styles