Installation

FlexQuery.NET is distributed as a set of NuGet packages. Install the core package plus the provider package for your data access technology; optional packages add integrations and alternative syntaxes.

Core package

dotnet add package FlexQuery.NET

Always required. Contains the query engine: parsers, filtering, sorting, paging, projection, grouping, validation, and the fluent API.

Provider package

Pick exactly one provider package:

# Entity Framework Core
dotnet add package FlexQuery.NET.EntityFrameworkCore

# Dapper
dotnet add package FlexQuery.NET.Dapper

The provider package supplies the execution pipeline — EF Core translates FlexQuery's expression trees through the EF stack; Dapper generates and executes SQL directly. See EF Core and Dapper for provider specifics.

Optional packages

# ASP.NET Core security filter ([FieldAccess] attributes) + result-shape JSON
dotnet add package FlexQuery.NET.AspNetCore

# Execution diagnostics and observability
dotnet add package FlexQuery.NET.Diagnostics

# OpenAPI/Swagger documentation for FlexQuery endpoints
dotnet add package FlexQuery.NET.OpenApi

# AG Grid Server-Side Row Model adapter
dotnet add package FlexQuery.NET.Adapters.AgGrid

# Kendo UI DataSource adapter
dotnet add package FlexQuery.NET.Adapters.Kendo

# FQL syntax parser (SQL-inspired language)
dotnet add package FlexQuery.NET.Parsers.Fql

# MiniOData syntax parser (OData-compatible)
dotnet add package FlexQuery.NET.Parsers.MiniOData

Which optional packages for which scenario:

Supported frameworks

All packages target .NET 6, .NET 8, and .NET 10, except FlexQuery.NET.OpenApi, which targets .NET 9 and .NET 10 (it builds on Microsoft.AspNetCore.OpenApi).

Next steps

Continue with First Query to wire up your first FlexQuery endpoint.