🛒 E-Commerce Architecture & Live Blueprint

EBuyMe Multi-Gateway E-Commerce Platform

👨‍💻 Designed & Engineered by Dilshad Abdulla | Designer & Software Engineer

Explore the end-to-end e-commerce pipeline: multilingual localization (English, Sorani & Badini Kurdish), secure authentication, catalog discovery with AI recommendations, session carts, address validation, multi-gateway checkout, and automated PDF invoice generation with instant email delivery.

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Private Enterprise Repository — Commercial Payment Options

The GitHub repository (DilshadGit/ebuyme) provides public documentation, operational workflow diagrams, and architecture blueprints for evaluation. Full production source code access, private repository invitation, Dockerized configurations, and turn-key deployment rights require verified Commercial Payment via Stripe or Bank Wire Transfer to Lead Software Engineer & Architect Dilshad Abdulla.

🏷️ Suggested Pricing Tiers:
• Source Code License: $14,500 USD / £11,500 GBP / €13,500 EUR
• Full Turn-Key Cloud Deployment: $18,000 USD / £14,000 GBP / €16,500 EUR
📑 Section Navigation & Flowchart Gallery

Interactive E-Commerce Flowchart Stages

Active: System Overview
Overview
📖 Official System Architecture & Local Operations Manual Repository: DilshadGit/ebuyme

EBuyMe E-Commerce Architecture & Local Server Guide

Engineered & Authored by Dilshad Abdulla — Senior Software Engineer & Lead System Architect.

⚡ Executive System Overview

EBuyMe is a high-performance, multi-tenant digital commerce engine engineered for scalable regional and global retail. Built to operate seamlessly both in local development environments (for testing user flows, zero-risk sandbox payments, and mock email deliveries) and in high-concurrency cloud production clusters.

💻 How the E-Commerce Platform Operates When Running Locally (http://127.0.0.1:8000 or 5000)

1. Development Server & Hot-Reload The WSGI/ASGI local process runs with automated debugger reload. Asset pipelines compile SCSS/Tailwind and package Kurdish RTL & English LTR stylesheets on-the-fly.
2. Local Database & Mock Catalogs SQLite or a local PostgreSQL container automatically mounts categories, pre-loaded SKU product catalogs, stock tiers, and default admin credentials for instant testing.
3. Sandbox Payment Gateway Payment controllers detect local environment flags (DEBUG=True) and route to safe sandbox gateways (mock credit card approvals, zero-risk Cash-on-Delivery toggles).
4. Local Invoice Dispatch & SMTP Capture When an order is submitted locally, the PDF invoice generation engine renders dynamically and pipes the transaction receipt to a local SMTP logger or MailHog container with zero external email spam.

🛠️ Technology Stack & Layer Architecture

Platform Tier Technology / Library Engineering Responsibility
Core Application Python 3.12, Flask / Django Handles business workflows, session cart logic, transaction orchestration, and role-based CMS permissions.
Localization (i18n) Babel, Gettext, RTL/LTR CSS Tri-lingual support: English (LTR), Sorani Kurdish (RTL), and Badini Kurdish (RTL) with dynamic UI mirror layout.
Catalog & Recs SQL Indices & Hybrid Recommendation Category faceting, real-time inventory queries, collaborative filtering & cross-category product recommendation algorithms.
Shopping Cart & Auth Signed Cookies / Redis Sessions Zero-friction guest shopping carts seamlessly merged with persistent customer accounts upon user login or registration.
Payment & Invoicing Stripe, FastPay/ZainCash, WeasyPrint, Celery Multi-gateway processing, atomic stock locking, automated PDF invoice rendering, and instant email dispatch.
🎬 Live User Journey Simulation & Screen Walkthrough Live Server: http://127.0.0.1:8000/

End-to-End E-Commerce Walkthrough: Landing to Payment & Logout

Captured directly from the running local platform server (http://127.0.0.1:8000/). Watch the complete user journey automatically advance every 3 seconds, or navigate step-by-step with interactive controls below.

Step 1 of 8 ⚡ Auto-Play (3s)
Timer Speed:
http://127.0.0.1:8000/
🚀 Open Live Page →
EBuyMe Walkthrough Screen
Step 1 of 8 GET /

Storefront Landing (Before Login)

Visitor arrives at the ebuyme marketplace before authentication. The template dynamically resolves client locale (English, Sorani Kurdish, or Badini Kurdish), loads trending products, featured departments, and initializes the guest session cart.

⚙️ Platform Execution Highlights
  • Zero-authentication public catalog browsing with instant cache response.
  • Multi-currency conversion engine (USD, IQD, AED) applied to all listed prices.
  • Signed session cookie issued for guest shopping cart state persistence.
Section 1.1 — User Flow & Globalization Stage 1 of 5

Platform Entry & Multilingual Localization (LTR & RTL)

How EBuyMe dynamically resolves language preferences (English, Sorani Kurdish, Badini Kurdish), flips page orientation (LTR to RTL), and sets user currency defaults.

📊 Stage 1 Architecture Flowchart Blueprint
EBuyMe Stage 1 Flowchart: Platform Entry & Localization

⚙️ Technical Process Breakdown

  1. Request Inspection & Cookie Resolution: The middleware inspects request.cookies.get('ebuy_locale') or parses the browser Accept-Language header.
  2. Tri-Lingual Support Matrix: Maps locale to English (en, LTR), Sorani Kurdish (ku_CKB, RTL), or Badini Kurdish (ku_KMR, RTL).
  3. Dynamic Directional Flipping: Flask/Django context processor injects dir="rtl" and loads mirrored CSS stylesheets for correct navigation bar, typography, and card alignments.
  4. Regional Currency Normalization: Assigns default currency symbol and exchange rate multiplier (USD, IQD, AED) stored in the visitor's lightweight session.
Section 1.2 — Security & Identity Stage 2 of 5

User Registration & Account Authentication

Secure onboarding lifecycle: registration validation, password hashing, email token activation, session issuance, and profile security.

📊 Stage 2 Architecture Flowchart Blueprint
EBuyMe Stage 2 Flowchart: User Authentication & Registration

⚙️ Technical Process Breakdown

  1. Registration Form & Anti-Bot Protection: User inputs email, name, phone, and password; backend verifies uniqueness, disposable domain checks, and CSRF protection.
  2. Cryptographic Password Hashing: Passwords hashed with salted bcrypt (12 rounds) or argon2id.
  3. Activation Token & Email Callback: A timed HMAC token is generated and emailed to the user; clicking the link triggers /activate/<token> to set is_active = True.
  4. Session Establishment & Cart Merging: Upon authentication, an encrypted session cookie (HttpOnly, SameSite=Lax) is issued, and any pre-existing guest shopping cart items are merged into the customer account database record.
Section 1.3 — Search & Intelligence Stage 3 of 5

Catalog Discovery & Dynamic Mixed Recommendations

Fast product search, multi-attribute facet filtering, real-time stock verification, and dynamic cross-category recommendation engines.

📊 Stage 3 Architecture Flowchart Blueprint
EBuyMe Stage 3 Flowchart: Catalog Discovery & Dynamic Recommendations

⚙️ Technical Process Breakdown

  1. Debounced Query & Faceted Search: Frontend live search executes asynchronous debounced queries against PostgreSQL full-text search indexes or Elasticsearch.
  2. Category & Department Filters: Filter queries aggregate by Department, Brand, Price Range, and In-Stock Status using indexed composite keys.
  3. Product Details & Inventory Check: Detail views fetch specifications, gallery images, variants (size, color), and confirm active inventory levels before allowing add-to-cart.
  4. Dynamic Mixed Recommendation Engine: Blends collaborative filtering ("customers who bought this also bought") with category affinity scoring to populate high-converting related products.
Section 1.4 — Commerce Core Stage 4 of 5

Shopping Cart, Multi-Gateway Payment & Automated Invoice

The central transaction pipeline: cart persistence, shipping address validation, multi-gateway payments (COD, card, mobile wallet), inventory decrement, and automated invoice delivery.

📊 Stage 4 Architecture Flowchart Blueprint
EBuyMe Stage 4 Flowchart: Shopping Cart, Payment & Automated Invoice

⚙️ Technical Process Breakdown

  1. Session Cart Lifecycle (/cart/): Users add items, modify quantities, and apply coupon discount vouchers; total pricing recomputes subtotals, VAT/tax, and estimated delivery.
  2. Checkout & Shipping Address: Prompts login or guest verification; user enters or selects saved shipping address with city/zone delivery fee calculation.
  3. Multi-Gateway Payment Dispatch:
    • Cash on Delivery (COD): Order logged immediately with status UNPAID_COD and phone verification pin.
    • Credit / Debit Card: Tokenized 3D-Secure payment flow via Stripe / Checkout.com.
    • Mobile Wallets: Regional wallet QR / deep-link processing (FastPay, ZainCash, FIB).
  4. Atomic Stock Reservation: Executes SQL row-level lock (SELECT ... FOR UPDATE) on inventory records to guarantee zero overselling during peak flash sales.
  5. Automated PDF Invoice & Email Dispatch: Backend compiles order data into HTML template, renders branded PDF receipt via WeasyPrint / ReportLab, and dispatches an asynchronous email with invoice attachment to the customer.
Section 1.5 — Executive Management Stage 5 of 5

Executive CMS Order & Logistics Monitoring

Operations control center: order fulfillment state transitions, courier dispatch assignment, inventory restocking thresholds, and executive business telemetry.

📊 Stage 5 Architecture Flowchart Blueprint
EBuyMe Stage 5 Flowchart: Executive CMS Order Tracking & Monitoring

⚙️ Technical Process Breakdown

  1. Fulfillment State Machine: Order status advances through strict states: PENDING → PROCESSING → PACKED → SHIPPED → DELIVERED (or CANCELLED/REFUNDED).
  2. Courier & Waybill Assignment: Warehouse staff scans SKU barcodes, assigns local courier delivery partners, and prints packing slips with tracking numbers.
  3. Automated Stock Re-Order Alerts: When SKU inventory drops below the minimum re-order point (ROP), automated alerts notify purchasing managers.
  4. Executive Revenue Telemetry: Aggregated daily sales, gross margin, return rates, and geographical heatmaps displayed with real-time charting.
Section 1 of 5
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