Pet Weight Tracking

[llinsss]

Description:
Create a system to track pet weight over time and alert owners about weight changes.

What You'll Build:
A weight tracking feature that helps pet owners monitor their pet's health by recording weight measurements and showing trends.

Files to Create:

backend/src/weight-tracking/
├── weight-tracking.module.ts
├── weight-tracking.controller.ts
├── weight-tracking.service.ts
├── entities/
│ └── weight-entry.entity.ts
└── dto/
└── create-weight-entry.dto.ts

Step-by-Step Tasks:

1. Create weight-tracking module: nest g module weight-tracking
2. Create controller: nest g controller weight-tracking
3. Create service: nest g service weight-tracking
4. Create WeightEntry entity (id, petId, weight, date, notes)
5. Add relationship to Pet entity
6. Create POST /pets/:petId/weight endpoint (add weight entry)
7. Create GET /pets/:petId/weight endpoint (get weight history)
8. Add weight trend calculation (gaining/losing/stable)
9. Add weight alerts for significant changes
10. Calculate ideal weight range by breed
11. Write tests

API Endpoints:

POST /pets/:petId/weight - Add weight entry
GET /pets/:petId/weight - Get weight history
GET /pets/:petId/weight/trends - Get weight trends
DELETE /pets/:petId/weight/:id - Delete weight entry

Database Schema:

weight_entries: id, pet_id, weight, unit, date, notes, created_at

Acceptance Criteria:

• ✅ Users can record pet weight with date
• ✅ Weight history returned in chronological order
• ✅ Calculate weight trends (gaining/losing/stable)
• ✅ Alert if weight change > 10% in 30 days
• ✅ Support kg and lbs units
• ✅ Graph-ready data format
• ✅ Tests with 80%+ coverage

[drips-wave]

This issue has been added to the Stellar Wave Program and is worth 200 Points.

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[Rampop01]

@Rampop01 has applied to work on this issue as part of the Stellar Wave Program's 2nd wave.

I would like to work on this issue as a web3 frontend developer . I understand the assignment and the requirements, and I’m confident in the approach needed to deliver the best solution. Kindly assign this task to me.

ℹ️ Repo Maintainers: To accept this application, review their application or assign @Rampop01 to this issue.

[Codekill33]

@Codekill33 has applied to work on this issue as part of the Stellar Wave Program's 2nd wave.

i am an experienced frontend developer and After carefully reviewing this, I’m confident in my understanding of the task and to implement an effective solution. I would appreciate being assigned to this issue.

ℹ️ Repo Maintainers: To accept this application, review their application or assign @Codekill33 to this issue.

[BigJohn-dev]

@BigJohn-dev has applied to work on this issue as part of the Stellar Wave Program's 2nd wave.

This issue appeals to me because it combines the challenge of solving complex frontend performance problems with the opportunity to deliver a smoother, more reliable user experience, while also sharpening my skills with emerging design and resolution patterns.

ℹ️ Repo Maintainers: To accept this application, review their application or assign @BigJohn-dev to this issue.

[Uchechukwu-Ekezie]

@Uchechukwu-Ekezie has applied to work on this issue as part of the Stellar Wave Program's 2nd wave.

Hi! I’d like to work on this issue.

I’m a full-stack developer with strong backend experience using NestJS, building scalable APIs, and implementing health and data-tracking systems. I’m confident I can design a clean, reliable, and testable weight tracking feature that meets the requirements and integrates well with the existing architecture.

My approach:

• Create the full weight-tracking module structure (module, controller, service, DTOs, and entity)
• Design a robust WeightEntry entity with proper relationships to the Pet model
• Implement the required endpoints for adding, retrieving, and deleting weight records
• Ensure chronological sorting and graph-ready response formatting
• Build trend analysis logic to classify weight changes (gaining, losing, stable)
• Implement alerts for significant weight changes (>10% in 30 days)
• Support both kg and lbs with proper unit conversion
• Add breed-based ideal weight range calculations
• Write comprehensive unit and integration tests to achieve 80%+ coverage

I’ll focus on clean architecture, scalability, and maintainability while ensuring a great developer and user experience.

Please assign this to me. Thank you!

ℹ️ Repo Maintainers: To accept this application, review their application or assign @Uchechukwu-Ekezie to this issue.

[drips-wave]

Congratulations, @BigJohn-dev! 🎉 Your application was accepted by the repo's maintainers, and the issue is due on February 26, 2026.

🧑‍💻 @BigJohn-dev: Please resolve the issue such that the repo's maintainers have enough time to review your contribution before the due date. You'll earn Points for completing the issue on-time, which will make you eligible for a share of the Stellar Wave Program's reward pool.

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[drips-wave]

This issue has been completed by @BigJohn-dev as part of the Stellar Wave Program's 2nd Wave 🥳

😎 @BigJohn-dev: You earned 200 Points for completing this issue! After the current Wave ends, you'll be eligible for a percentage of the Wave's reward pool based on the percentage of total points you've earned. Learn more here. You can also Leave a review to share your experience working on this issue.

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