# EcommerceMicroservices

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/*
User Service (Handles user profiles, authentication, notifications):

Collections: User, Address, AddressDocument, PaymentMethod, Invitation, Support, Comment.
Services to Implement:

User registration/login (with roles: seller/user).
Profile management (update name, language, nationality).
Notification system (send based on categories/frequency).
Address CRUD (create/read/update/delete).
Payment method management.
Support ticket creation/resolution.
Comment/review posting (with likes/dislikes).



Catalog Service (Manages products, categories, properties):

Collections: ProductCategory, ProductCategoryDocument, ShopCategory, ShopCategoryDocument, Property, PropertyDocument, Tag, Product, ProductDocument, Brand.
Services to Implement:

Category CRUD (hierarchical trees for shops/products).
Product listing/create/update (with properties, tags, images).
Brand management.
Search/filtering (by tags, categories, properties).
Property definition (user/system types).


Why? Core catalog domain; scales independently for search-heavy ops.


Vendor Service (Handles shops, branches, regions):

Collections: Shop, ShopDocument, Branch, Region, RegionDocument.
Services to Implement:

Shop/branch creation (with addresses, schedules, facilities).
Region management (polygons for geo-queries).
Vendor approval (adminStatus updates).
Scoring/facilities updates.


Why? Vendor-specific; allows separate scaling for multi-vendor growth.


Discount Service (Manages promotions and discounts):

Collections: ItemDiscount, Discount.
Services to Implement:

Discount creation (types, percentages, expirations, limits).
Apply discounts to items/products/shops.
Validation (e.g., check expiry, max usage).
Event emission for discount applications.


Why? Isolated for complex rules; easy to update without affecting core e-commerce.


Order Service (Handles orders, reservations, transactions):

Collections: Order, OrderDetail, Transaction, Reservation.
Services to Implement:

Order creation/processing (apply discounts, calculate final price).
Payment integration (via PaymentMethod refs).
Transaction logging (increases/decreases).
Status updates (e.g., delivery time, process).
Reservation handling.


Why? Transactional core; use sagas for distributed transactions (e.g., with discounts).


Advertisement Service (Handles ads and banners):

Collections: Advertisement.
Services to Implement:

Ad creation (banners, costs, dates).
Targeting (by location, tags, user).
Transaction linking for ad payments.


Why? Non-core; can be scaled separately for marketing teams.


API Gateway / Orchestration Service (Cross-cutting):

No specific collections; aggregates from others.
Services: Authentication, rate-limiting, routing to other services.
Why? Entry point; handles multi-language responses.

*/