Introducing Kepler.Core — Smart Field Selection for EF Core APIs

Introducing Kepler.Core — Smart Field Selection for EF Core APIs

Mohammad Ali Ebrahimzadeh has released Kepler.Core, an EF Core extension designed to optimize database queries by selecting only the necessary fields. The NuGet package allows developers to reduce data transfer overhead and improve application performance, with a demo available using Adventure Works 2022.

Why This Matters

Traditional ORM approaches often retrieve entire entity graphs, even when only a subset of data is required. This leads to unnecessary data transfer, increased latency, and wasted resources, especially in high-volume applications. Kepler.Core addresses this by enabling granular field selection, mitigating performance bottlenecks and reducing database load.

Key Insights

• NuGet Package: https://www.nuget.org/packages/Kepler.Core
• GitHub Repository: https://github.com/MohammadAliEbrahimzadeh/Kepler.Core
• Policy-Based Approach: Kepler.Core uses policies to define field selection rules, offering flexibility and reusability across models.

Practical Applications

• Use Case: An e-commerce system uses Kepler.Core to retrieve only the product name, price, and image URL for display on a product listing page, reducing database load and improving page load times.
• Pitfall: Overly complex policies or excessive use of global exclusions can negate performance benefits and increase maintenance overhead.

References:

• https://dev.to/mohammad_aliebrahimzadeh/introducing-keplercore-smart-field-selection-for-ef-core-apis-4da2
• https://www.nuget.org/packages/Kepler.Core
• https://github.com/MohammadAliEbrahimzadeh/Kepler.Core