SaaS Multi Tenant REST ful APIs

auth.md

🚀 AUTHENTICATION (Enhanced)

• POST /api/auth/register – Customer registration
• POST /api/auth/verify-email – Verify email with token
• POST /api/auth/resend-verification – Resend verification link
• POST /api/auth/login – Login with credentials
• POST /api/auth/login/otp – Login with one-time code (2FA)
• POST /api/auth/2fa/setup – Enable 2-factor authentication
• POST /api/auth/2fa/verify – Verify 2-factor code
• POST /api/auth/password/forgot – Send password-reset link
• POST /api/auth/password/reset – Reset password with token
• PATCH /api/auth/password/change – Change password (logged-in)
• POST /api/auth/refresh-token – Refresh JWT
• POST /api/auth/logout – Logout current session
• GET /api/auth/sessions – List active sessions/devices
• DELETE /api/auth/sessions/:id – Revoke specific session
• GET /api/auth/oauth/:provider – Start OAuth flow (Google, etc.)
• POST /api/auth/oauth/:provider/callback – OAuth callback

goal.md

🎯 Professional and Real-Life Goal of the Project

To empower businesses (tenants) to quickly and easily launch their own independent online stores, manage their inventory, process orders, and streamline operations, without worrying about infrastructure or technical complexity.

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✅ Real-Life Benefits for Users (Businesses and their Teams):

1. Rapid Store Setup:

   • Business owners can launch their e-commerce operations quickly, saving significant time and resources.

2. Simplified Inventory Management:

   • Easily manage warehouses, track stock levels, and efficiently handle inventory across multiple locations, reducing operational complexity.

3. Effective Order & Return Processing:

   • Businesses can manage the full lifecycle of orders, from creation to shipping, fulfillment, and even returns, improving customer satisfaction through seamless workflows.

4. Role-Based Team Management:

   • Teams can dynamically manage user roles and permissions, empowering owners to safely delegate responsibilities within their business.

5. Scalable Infrastructure:

   • The multi-tenant architecture allows businesses to scale effortlessly without needing internal technical expertise or large upfront investment.

6. Cost Savings:

   • Businesses avoid high setup costs, infrastructure maintenance, and dedicated IT teams, focusing instead on growing sales and customer relationships.

7. Operational Efficiency:

   • Automated processes such as shipping labels generation, tracking, and notifications minimize manual labor, freeing up business owners and staff for more strategic work.

8. Data-Driven Decisions:

   • Integrated analytics and reporting enable businesses to understand their sales, inventory performance, and returns patterns, leading to better decision-making.

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✅ How Your Work Translates into Real-Life Value:

• You are not just coding; you're building a platform that makes real-world business operations easier, more efficient, and cost-effective.
• You are helping entrepreneurs and small-to-medium businesses compete effectively with larger companies by providing professional-grade tools at a fraction of the cost and complexity.
• You enable growth and scalability, making businesses more successful in practical terms—higher sales, better customer experiences, and smoother day-to-day management.

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🚀 AUTHENTICATION

• POST /api/auth/register – Customer registration
• POST /api/auth/login – Login
• POST /api/auth/logout – Logout
• POST /api/auth/refresh-token – Refresh JWT

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🚀 TENANT MANAGEMENT

• POST /api/tenants – Register tenant (store)
• GET /api/tenants/:id – Get tenant details
• PUT /api/tenants/:id – Update tenant details
• DELETE /api/tenants/:id – Delete tenant (soft delete)
• GET /api/tenants/:id/settings – Get tenant settings
• PUT /api/tenants/:id/settings – Update tenant settings

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🚀 USER MANAGEMENT

• POST /api/users – Create user (Admin creates staff/customers)
• GET /api/users – List users (pagination, filter)
• GET /api/users/:id – Get user details
• PUT /api/users/:id – Update user details/role
• DELETE /api/users/:id – Delete user (soft delete)
• PATCH /api/users/:id/status – Activate/deactivate user
• PATCH /api/users/:id/password – Update user password

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🚀 ROLE & PERMISSION MANAGEMENT

• POST /api/roles – Create role (tenant-specific)
• GET /api/roles – List roles
• GET /api/roles/:id – Get role details
• PUT /api/roles/:id – Update role
• DELETE /api/roles/:id – Delete role
• POST /api/roles/:id/permissions – Assign permissions to role
• DELETE /api/roles/:id/permissions/:permissionId – Remove permission from role
• GET /api/permissions – List all permissions

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🚀 PRODUCT MANAGEMENT

• POST /api/products – Create product
• GET /api/products – List products (pagination, filters)
• GET /api/products/:id – Get product details
• PUT /api/products/:id – Update product
• DELETE /api/products/:id – Delete product (soft delete)

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🚀 CATEGORY MANAGEMENT

• POST /api/categories – Create category
• GET /api/categories – List categories
• GET /api/categories/:id – Get category details
• PUT /api/categories/:id – Update category
• DELETE /api/categories/:id – Delete category
• GET /api/categories/:id/products – Get products under category

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🚀 CART MANAGEMENT

• POST /api/cart – Add item to cart
• PUT /api/cart/:itemId – Update cart item quantity
• DELETE /api/cart/:itemId – Remove cart item
• GET /api/cart – Get cart contents
• POST /api/cart/checkout – Checkout cart

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🚀 ORDER MANAGEMENT

• POST /api/orders – Create order
• GET /api/orders – List orders (pagination, filters)
• GET /api/orders/:id – Get order details
• PATCH /api/orders/:id/status – Update order status
• DELETE /api/orders/:id – Cancel order

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🚀 PAYMENT MANAGEMENT

• POST /api/payments/create-intent – Create payment intent (Stripe/PayPal)
• POST /api/payments/webhook – Payment webhook handler
• GET /api/payments – List payments (Admin/Staff)
• GET /api/payments/:id – Get payment details

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🚀 CUSTOMER PROFILE MANAGEMENT

• GET /api/profile – Get own profile
• PUT /api/profile – Update own profile
• PATCH /api/profile/password – Update own password

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🚀 NOTIFICATION MANAGEMENT

• GET /api/notifications – List notifications
• POST /api/notifications – Create notification (Admin)
• DELETE /api/notifications/:id – Delete notification

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🚀 FILE UPLOAD (OPTIONAL)

• POST /api/uploads – Upload product/store images

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🚀 WAREHOUSE MANAGEMENT

• POST /api/warehouses – Create warehouse

• GET /api/warehouses – List warehouses

• GET /api/warehouses/:id – Get warehouse details

• PUT /api/warehouses/:id – Update warehouse

• DELETE /api/warehouses/:id – Delete warehouse

• POST /api/warehouses/:id/stock – Add stock to warehouse

• GET /api/warehouses/:id/stock – Get stock in warehouse

• PATCH /api/warehouses/:id/stock/:productId – Update product quantity in warehouse

• DELETE /api/warehouses/:id/stock/:productId – Remove product from warehouse

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🚀 INVENTORY MANAGEMENT

• GET /api/inventory – List inventory across warehouses
• GET /api/inventory/:productId – Get inventory details for a product
• PATCH /api/inventory/:productId/adjust – Adjust product stock manually
• POST /api/inventory/transfer – Transfer stock between warehouses

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🚀 ORDER RETURNS MANAGEMENT

• POST /api/returns – Create return request
• GET /api/returns – List return requests
• GET /api/returns/:id – Get return request details
• PATCH /api/returns/:id/status – Update return status (requested, approved, rejected, refunded, returned)
• DELETE /api/returns/:id – Cancel return request

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🚀 RETURN NOTIFICATIONS

• GET /api/return-notifications – List return notifications
• POST /api/return-notifications – Create return notification (internal use)
• DELETE /api/return-notifications/:id – Remove return notification

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🚀 SHIPPING MANAGEMENT

• POST /api/shipping/labels – Generate shipping label
• GET /api/shipping/labels/:id – Get shipping label details
• POST /api/shipping/tracking – Add tracking info to order
• GET /api/shipping/tracking/:trackingNumber – Track shipment

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🚀 FULFILLMENT MANAGEMENT

• POST /api/fulfillment/orders/:orderId/fulfill – Fulfill order manually
• PATCH /api/fulfillment/orders/:orderId/status – Update fulfillment status (fulfilled, partially_fulfilled, pending)
• GET /api/fulfillment – List fulfillment activities
• GET /api/fulfillment/:id – Get fulfillment details

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🚀 SUPPLIER MANAGEMENT (OPTIONAL)

• POST /api/suppliers – Create supplier
• GET /api/suppliers – List suppliers
• GET /api/suppliers/:id – Get supplier details
• PUT /api/suppliers/:id – Update supplier
• DELETE /api/suppliers/:id – Delete supplier

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🚀 PURCHASE ORDER MANAGEMENT

• POST /api/purchase-orders – Create purchase order
• GET /api/purchase-orders – List purchase orders
• GET /api/purchase-orders/:id – Get purchase order details
• PATCH /api/purchase-orders/:id/status – Update purchase order status (ordered, received, cancelled)
• DELETE /api/purchase-orders/:id – Delete purchase order

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🚀 BULK IMPORT/EXPORT (OPTIONAL)

• POST /api/import/products – Bulk import products via CSV/Excel
• GET /api/export/products – Export product list

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🚀 DASHBOARD ANALYTICS

• GET /api/dashboard/sales-summary – Sales summary stats
• GET /api/dashboard/inventory-summary – Inventory summary stats
• GET /api/dashboard/returns-summary – Returns summary
• GET /api/dashboard/fulfillment-summary – Fulfillment summary