# spydrco/spydr-store architecture

> Architecture diagram of the GitHub repository spydrco/spydr-store, 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/spydrco/spydr-store
- Repository: https://github.com/spydrco/spydr-store

## Overview

SPYDR is a small Flask storefront. A shopper browses the product catalog, adds a selected item to the session cart, reviews the cart, and submits checkout; cash-on-delivery clears the cart and displays confirmation. Routes and product data are all in app.py. The source shows an online-payment placeholder, not a working payment integration. Template links and styling details are not inferred because those files were not sampled.

Main entry points: [`app.py`](https://github.com/spydrco/spydr-store/blob/main/app.py) (Checkout route), [`shop.html`](https://github.com/spydrco/spydr-store/blob/main/shop.html) (Shop page), [`cart.html`](https://github.com/spydrco/spydr-store/blob/main/cart.html) (Cart page), [`checkout.html`](https://github.com/spydrco/spydr-store/blob/main/checkout.html) (Checkout page)

## Diagram (Mermaid)

```mermaid
flowchart TD

subgraph group_storefront["Storefront"]
  node_shop_route["Shop route<br/>[app.py]"]
  node_catalog["Product catalog<br/>[app.py]"]
  node_shop_page["Shop page<br/>[shop.html]"]
end

subgraph group_cart["Cart"]
  node_add_route["Add-to-cart route<br/>[app.py]"]
  node_cart_state["Session cart<br/>[app.py]"]
  node_cart_route["Cart route<br/>[app.py]"]
  node_cart_page["Cart page<br/>[cart.html]"]
end

subgraph group_checkout["Checkout"]
  node_checkout_route["Checkout route<br/>[app.py]"]
  node_checkout_page["Checkout page<br/>[checkout.html]"]
  node_success_page["Success page<br/>[success.html]"]
end

node_shopper(("Shopper"))

node_shopper -->|"requests shop"| node_shop_route
node_shop_route -->|"filters products"| node_catalog
node_shop_route -->|"renders products"| node_shop_page
node_shopper -->|"submits item"| node_add_route
node_add_route -->|"looks up product"| node_catalog
node_add_route -->|"updates session"| node_cart_state
node_add_route -->|"redirects to cart"| node_shopper
node_shopper -->|"requests cart"| node_cart_route
node_cart_route -->|"reads session"| node_cart_state
node_cart_route -->|"renders total"| node_cart_page
node_shopper -->|"requests checkout"| node_checkout_route
node_checkout_route -->|"renders form"| node_checkout_page
node_shopper -->|"submits payment choice"| node_checkout_route
node_checkout_route -->|"clears on COD"| node_cart_state
node_checkout_route -->|"renders result"| node_success_page

click node_shop_route "https://github.com/spydrco/spydr-store/blob/main/app.py"
click node_catalog "https://github.com/spydrco/spydr-store/blob/main/app.py"
click node_shop_page "https://github.com/spydrco/spydr-store/blob/main/shop.html"
click node_add_route "https://github.com/spydrco/spydr-store/blob/main/app.py"
click node_cart_state "https://github.com/spydrco/spydr-store/blob/main/app.py"
click node_cart_route "https://github.com/spydrco/spydr-store/blob/main/app.py"
click node_cart_page "https://github.com/spydrco/spydr-store/blob/main/cart.html"
click node_checkout_route "https://github.com/spydrco/spydr-store/blob/main/app.py"
click node_checkout_page "https://github.com/spydrco/spydr-store/blob/main/checkout.html"
click node_success_page "https://github.com/spydrco/spydr-store/blob/main/success.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_shop_route,node_catalog,node_shop_page toneBlue
class node_add_route,node_cart_state,node_cart_route,node_cart_page toneAmber
class node_checkout_route,node_checkout_page,node_success_page toneMint
class node_shopper toneIndigo
```

## Components

### Storefront

- [Shop route](https://github.com/spydrco/spydr-store/blob/main/app.py): `app.py`
- [Product catalog](https://github.com/spydrco/spydr-store/blob/main/app.py): `app.py`
- [Shop page](https://github.com/spydrco/spydr-store/blob/main/shop.html): `shop.html`

### Cart

- [Add-to-cart route](https://github.com/spydrco/spydr-store/blob/main/app.py): `app.py`
- [Session cart](https://github.com/spydrco/spydr-store/blob/main/app.py): `app.py`
- [Cart route](https://github.com/spydrco/spydr-store/blob/main/app.py): `app.py`
- [Cart page](https://github.com/spydrco/spydr-store/blob/main/cart.html): `cart.html`

### Checkout

- [Checkout route](https://github.com/spydrco/spydr-store/blob/main/app.py): `app.py`
- [Checkout page](https://github.com/spydrco/spydr-store/blob/main/checkout.html): `checkout.html`
- [Success page](https://github.com/spydrco/spydr-store/blob/main/success.html): `success.html`

### Other components

- **Shopper**

## Connections

- Shopper → Shop route: requests shop
- Shop route → Product catalog: filters products
- Shop route → Shop page: renders products
- Shopper → Add-to-cart route: submits item
- Add-to-cart route → Product catalog: looks up product
- Add-to-cart route → Session cart: updates session
- Add-to-cart route → Shopper: redirects to cart
- Shopper → Cart route: requests cart
- Cart route → Session cart: reads session
- Cart route → Cart page: renders total
- Shopper → Checkout route: requests checkout
- Checkout route → Checkout page: renders form
- Shopper → Checkout route: submits payment choice
- Checkout route → Session cart: clears on COD
- Checkout route → Success page: renders result