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## Diagram Draw.io
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https://drive.google.com/file/d/1U3z9awKPSR87_BAfbhGwMDf_M8W0wWpE/view?usp=sharing
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**System Architecture Discussion**
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**System Architecture Discussion**
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The Smart Grocery Management Mobile App adopts a modular and scalable architecture consisting of four main layers: **Client Devices, Backend Server, Database, and External Services**. This structure ensures a clear separation of concerns, high maintainability, and strong support for collaborative and intelligent grocery management features.
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**Client Devices (Mobile App)**
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**Client Devices (Mobile App)**
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The client is built using React Native and runs on both Android and iOS platforms via Expo Go. It allows users to:
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- Log in and register securely
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- Manage grocery inventory
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| ... | ... | @@ -12,7 +12,7 @@ The client is built using React Native and runs on both Android and iOS platform |
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- Receive AI generated recipe suggestions
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The app communicates with the backend using HTTPS and JSON via REST API, ensuring secure and standardized data exchange.
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**Backend Server (Node.js/Express)**
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**Backend Server (Node.js/Express)**
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The backend uses Node.js with Express to expose REST API endpoints for:
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- /users: Handles login, registration, and password reset
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- /group: Manages group creation, joining, leaving, and ownership transfer
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| ... | ... | @@ -21,8 +21,8 @@ These endpoints are organized under a RESTful architecture, simplifying integrat |
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- Email based password verification using Nodemailer
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- AI recipe querying
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- Calorie and BMI analysis
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**Database (MongoDB via Mongoose)**
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**Database (MongoDB via Mongoose)**
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All data is persistently stored in a MongoDB database with the help of Mongoose for schema validation and object modeling. Collections include:
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- users: Account data, BMI, preferences
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- groups: Group metadata and member mapping
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| ... | ... | @@ -30,10 +30,10 @@ All data is persistently stored in a MongoDB database with the help of Mongoose |
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- logs: Food consumption and financial records
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This design allows flexible schema evolution and efficient querying, supporting features like group synchronization and historical analytics
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**External Services**
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**External Services**
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Two external APIs enhance app intelligence and communication:
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- Gmail SMTP (via Nodemailer): Used to send 6 digit verification codes for password reset. This ensures secure identity validation
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- Spoonacular API: Allows the backend to generate intelligent meal suggestions based on real time inventory and nutritional goals
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- Spoonacular API: Allows the backend to generate intelligent meal suggestions based on real time inventory and nutritional goals
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| Attribute | Architectural Support |
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| ------ | ------ |
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| ... | ... | |
