---
title: NoteDeleteRequestValidator
summary: API reference for NoteDeleteRequestValidator.
status: draft
owner: SAIF Doc Gen
last_reviewed: 2026-09-24
library: SAIF.Services
reference_type: package
---

# NoteDeleteRequestValidator

Validates a `NoteDeleteRequest` by requiring a non-empty `Id` that resolves to an existing audit note, checked via `IBillQueryProvider.AuditQueries.NoteQueries.GetAuditNote`. This prevents delete operations from targeting a note id that does not exist in the audit note store.

## Purpose
- Requires `Id` to be non-null and non-empty.
- Requires `Id` to resolve to an existing audit note by verifying that `provider.AuditQueries.NoteQueries.GetAuditNote(x)` does not return a null result.

## Context
- Namespace: `SAIF.Services.Claims.Bills.Validators`
- Assembly/package: `SAIF.Services` (packaged inside the `SAIF.SAIFCode.Core` NuGet package)

## Public members
| Member | Signature | Purpose |
| --- | --- | --- |
| NoteDeleteRequestValidator | `NoteDeleteRequestValidator(IBillQueryProvider provider)` | Wires a required-value rule plus a `Must` check confirming `Id` resolves to an existing audit note via `provider.AuditQueries.NoteQueries.GetAuditNote`.* |

## Behavioral notes
- Validation is enforced via FluentValidation's `AbstractValidator<T>` base.*
- The existence check is a live lookup against `IBillQueryProvider`'s audit note queries, so the rule's outcome depends on external data at validation time rather than the request's own field alone.*

## Constraints and usage notes
- Requires an `IBillQueryProvider` implementation to be supplied via constructor injection.

> **Note:** Statements marked with * were inferred from code structure, naming conventions, or
> contextual evidence where direct confirmation was not available in source artifacts. Statements
> marked with ** could not be confirmed; treat as unknown until verified.

## Sources
- Services/SAIF.Services/Claims/Bills/Validators/NoteDeleteRequestValidator.cs