# u093622/foodpanda architecture

> Architecture diagram of the GitHub repository u093622/foodpanda, 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/u093622/foodpanda
- Repository: https://github.com/u093622/foodpanda

## Overview

This is a FastAPI web app for submitting a Foodpanda checkout and handling its payment follow-up. The user submits checkout details; the app retrieves cached cart data, gathers customer and purchase-intent information, encrypts card data, and submits the order. If payment requires 3DS, the app renders a follow-up page, whose status route checks payment status and can return an order link. The excerpts show these calls in main.py; the README is empty, and the template contents were not provided.

Main entry points: [`main.py`](https://github.com/u093622/foodpanda/blob/master/main.py) (Checkout orchestration), [`templates/checkout.html`](https://github.com/u093622/foodpanda/blob/master/templates/checkout.html) (Checkout page)

## Diagram (Mermaid)

```mermaid
flowchart TD

subgraph group_web["Web application"]
  node_routes["Web routes<br/>[main.py]"]
  node_checkout_page["Checkout page<br/>[checkout.html]"]
end

subgraph group_checkout["Checkout workflow"]
  node_checkout_flow["Checkout orchestration<br/>[main.py]"]
end

subgraph group_integrations["External services"]
  node_cart_store["Cart data service"]
  node_foodpanda["Foodpanda APIs"]
  node_card_encrypt["Card encryption service"]
  node_payment_status["Payment status API"]
end

node_user(("User"))

node_user -->|"submits checkout"| node_routes
node_routes -->|"calls checkout"| node_checkout_flow
node_checkout_flow -->|"retrieves cart"| node_cart_store
node_checkout_flow -->|"gets customer"| node_foodpanda
node_checkout_flow -->|"creates intent"| node_foodpanda
node_checkout_flow -->|"encrypts card"| node_card_encrypt
node_checkout_flow -->|"submits order"| node_foodpanda
node_routes -->|"renders result"| node_checkout_page
node_routes -->|"checks status"| node_payment_status
node_routes -->|"renders status"| node_checkout_page

click node_routes "https://github.com/u093622/foodpanda/blob/master/main.py"
click node_checkout_flow "https://github.com/u093622/foodpanda/blob/master/main.py"
click node_checkout_page "https://github.com/u093622/foodpanda/blob/master/templates/checkout.html"

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_routes,node_checkout_page,node_user toneBlue
class node_checkout_flow toneAmber
class node_cart_store,node_foodpanda,node_card_encrypt,node_payment_status toneMint
```

## Components

### Web application

- [Web routes](https://github.com/u093622/foodpanda/blob/master/main.py): `main.py`
- [Checkout page](https://github.com/u093622/foodpanda/blob/master/templates/checkout.html): `templates/checkout.html`

### Checkout workflow

- [Checkout orchestration](https://github.com/u093622/foodpanda/blob/master/main.py): `main.py`

### External services

- **Cart data service**
- **Foodpanda APIs**
- **Card encryption service**
- **Payment status API**

### Other components

- **User**

## Connections

- User → Web routes: submits checkout (evidence: `main.py`)
- Web routes → Checkout orchestration: calls checkout (evidence: `main.py`)
- Checkout orchestration → Cart data service: retrieves cart (evidence: `main.py`)
- Checkout orchestration → Foodpanda APIs: gets customer (evidence: `main.py`)
- Checkout orchestration → Foodpanda APIs: creates intent (evidence: `main.py`)
- Checkout orchestration → Card encryption service: encrypts card (evidence: `main.py`)
- Checkout orchestration → Foodpanda APIs: submits order (evidence: `main.py`)
- Web routes → Checkout page: renders result (evidence: `main.py`)
- Web routes → Payment status API: checks status (evidence: `main.py`)
- Web routes → Checkout page: renders status (evidence: `main.py`)