He had take near by 5 hour to complete CRUD API with ADO.NET and SP wi

He had take near by 5 hour to complete CRUD API with ADO.NET and SP with SQL server. he complete task but he has 0 coding sense and not added logical validation. for manege table history he create 3 deferente payload and method like create history,update history and delete history. also, for main table CRUD he create 3 different model for Create, update and delete. we can't move forward with him with 3 years of experience and with this sense. i had to fill this in practical task review refactor this keep it short

Here's a concise, honest practical task review you can fill in:

Practical Task Review - CRUD API with ADO.NET, Stored Procedures & SQL Server

Time Taken: ~5 hours (acceptable for the scope, but efficiency is a concern given the output quality)

Task Completion: Partial - Functional but not production-ready

Issues Identified:

1. No Logical Validation (Critical)

Zero input validation on API endpoints (null checks, range checks, required fields, format validation)
No error handling or meaningful HTTP response codes
No guard clauses or business rule enforcement

2. Redundant Models - No Code Reuse

Created 3 separate request models for the main table: CreateModel, UpdateModel, DeleteModel
A single model with nullable/optional fields or a shared DTO would suffice
DeleteModel typically only needs an Id - no dedicated model needed at all

3. History Table - Poor Design

Created 3 separate methods and payloads: CreateHistory, UpdateHistory, DeleteHistory
History logging is a cross-cutting concern - one method LogHistory(entityId, action, payload) handles all 3 cases
This pattern does not scale - every new action requires a new method
Should be handled inside the Stored Procedure itself via a trigger or a single MERGE/INSERT with an ActionType column

4. Architecture / Design Sense

No separation of concerns visible
Likely no use of interfaces, dependency injection, or service layer
SP design likely mirrors the bad C# structure (3 SPs for history instead of 1 parameterized SP)

What Should Have Been Done:

// One unified model
public class ProductRequest {
    public int? Id { get; set; }         // null = create, set = update/delete
    public string Name { get; set; }
    public decimal Price { get; set; }
    public bool IsActive { get; set; }
}

// One history method
void LogHistory(int entityId, string action, string changedData)

// One SP for history
EXEC sp_ManageHistory @EntityId, @Action, @ChangedData

Overall Assessment:

Area	Rating
Task Completion	Pass (barely)
Code Quality	Poor
Design Thinking	Very Poor
Validation / Error Handling	None
Scalability Mindset	None
Experience Match (3 YOE)	Does not meet expectations

Verdict: 3 years of experience is expected to demonstrate reusable design, basic validation, and DRY principles. This submission reflects early junior-level thinking. The core issue is not syntax - it is the absence of design judgment. Not recommended to move forward unless a significant improvement is shown in a follow-up task with explicit focus on clean architecture and input validation.

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