Summary
Add pagination and filtering to the GET /api/v1/assets endpoint in the Go backend (in backend/handlers/assets.go). This addition is key for the tokenized RWA marketplace, as it handles large asset lists by supporting query params for page, limit, filters (e.g., type=real_estate, status=active), and sorting (e.g., by value desc), querying PostgreSQL efficiently with GORM, and returning paginated JSON with metadata (total, next_page), improving UX and performance.
The pagination/filtering should include:
Query Params: page (int, default 1), limit (int, default 20), type (string), status (string), sort (string like "value:desc").
Logic Flow:
Parse params: Use gin.Query, validate ranges.
Build query: GORM chain like db.Where("type = ?", typ).Order(sort).Offset((page-1)*limit).Limit(limit).Find(&assets).
Count total: Separate db.Count for pagination meta.
Response: JSON { "data": assets, "pagination": { "total": count, "page": page, "limit": limit } }.
Defaults: Safe fallbacks.
Caching: Optional Redis for filtered lists.
Edge cases: Empty results, invalid params.
Error Handling: 400 for invalid params.
Security Considerations: Prevent SQL injection via GORM.
Integration: With DB for large datasets.
Future-Proofing: Cursor-based for infinite scroll.
Test with queries: Unit for parsing, integration with seeded DB.
Branch for Development
feature/add-pagination-filtering
PR Title
feat: Add Pagination and Filtering to Asset List Endpoint for Scalability
Additional Note
Checkout from main: git checkout -b feature/add-pagination-filtering
Run go test ./handlers and test with query strings.
PR: Handler updates, tests, param examples, and meta structure.
Summary
Add pagination and filtering to the GET /api/v1/assets endpoint in the Go backend (in backend/handlers/assets.go). This addition is key for the tokenized RWA marketplace, as it handles large asset lists by supporting query params for page, limit, filters (e.g., type=real_estate, status=active), and sorting (e.g., by value desc), querying PostgreSQL efficiently with GORM, and returning paginated JSON with metadata (total, next_page), improving UX and performance.
The pagination/filtering should include:
Query Params: page (int, default 1), limit (int, default 20), type (string), status (string), sort (string like "value:desc").
Logic Flow:
Parse params: Use gin.Query, validate ranges.
Build query: GORM chain like db.Where("type = ?", typ).Order(sort).Offset((page-1)*limit).Limit(limit).Find(&assets).
Count total: Separate db.Count for pagination meta.
Response: JSON { "data": assets, "pagination": { "total": count, "page": page, "limit": limit } }.
Defaults: Safe fallbacks.
Caching: Optional Redis for filtered lists.
Edge cases: Empty results, invalid params.
Error Handling: 400 for invalid params.
Security Considerations: Prevent SQL injection via GORM.
Integration: With DB for large datasets.
Future-Proofing: Cursor-based for infinite scroll.
Test with queries: Unit for parsing, integration with seeded DB.
Branch for Development
feature/add-pagination-filtering
PR Title
feat: Add Pagination and Filtering to Asset List Endpoint for Scalability
Additional Note
Checkout from main: git checkout -b feature/add-pagination-filtering
Run go test ./handlers and test with query strings.
PR: Handler updates, tests, param examples, and meta structure.