OPCFoundation.NetStandard.Opc.Ua.Core.Schema 2.0.0

Prefix Reserved
.NET 8.0 This package targets .NET 8.0. The package is compatible with this framework or higher. .NET Framework 4.8 This package targets .NET Framework 4.8. The package is compatible with this framework or higher. 
dotnet add package OPCFoundation.NetStandard.Opc.Ua.Core.Schema --version 2.0.0
                    


                    

                
NuGet\Install-Package OPCFoundation.NetStandard.Opc.Ua.Core.Schema -Version 2.0.0
This command is intended to be used within the Package Manager Console in Visual Studio, as it uses the NuGet module's version of Install-Package. 
<PackageReference Include="OPCFoundation.NetStandard.Opc.Ua.Core.Schema" Version="2.0.0" />
For projects that support PackageReference, copy this XML node into the project file to reference the package. 
<PackageVersion Include="OPCFoundation.NetStandard.Opc.Ua.Core.Schema" Version="2.0.0" />
                    


                            Directory.Packages.props
                        

                    

                
<PackageReference Include="OPCFoundation.NetStandard.Opc.Ua.Core.Schema" />
                    


                            Project file
For projects that support Central Package Management (CPM), copy this XML node into the solution Directory.Packages.props file to version the package. 
paket add OPCFoundation.NetStandard.Opc.Ua.Core.Schema --version 2.0.0
                    


                    

                
#r "nuget: OPCFoundation.NetStandard.Opc.Ua.Core.Schema, 2.0.0"
#r directive can be used in F# Interactive and Polyglot Notebooks. Copy this into the interactive tool or source code of the script to reference the package. 
#:package OPCFoundation.NetStandard.Opc.Ua.Core.Schema@2.0.0
#:package directive can be used in C# file-based apps starting in .NET 10 preview 4. Copy this into a .cs file before any lines of code to reference the package. 
#addin nuget:?package=OPCFoundation.NetStandard.Opc.Ua.Core.Schema&version=2.0.0
                    


                            Install as a Cake Addin
                        

                    

                
#tool nuget:?package=OPCFoundation.NetStandard.Opc.Ua.Core.Schema&version=2.0.0
                    


                            Install as a Cake Tool

OPCFoundation.NetStandard.Opc.Ua.Core.Schema

Runtime schema generation for OPC UA data types.

This package produces schemas for the encodeable types generated by the OPC UA stack and for complex types that are added dynamically at runtime. Schemas are built as strongly-typed object models in code (no embedded schema strings), so unused generation paths are trimmed away and the feature is NativeAOT friendly.

Supported encodings:

  • XSD for the XML encoding.
  • BSD (OPC Binary, Part 6) for the binary encoding.
  • JSON Schema (Part 6 Annex C) for the JSON encoding, in both compact (reversible) and verbose flavors.

It also generates the OpenAPI 3.0 document of the REST binding (WebApiOpenApiGenerator, Part 6 G.3) from the route table and the request and response types, either with a JSON object as every body or with a component schema per message and structure.

Usage

IServiceProvider services = new ServiceCollection()
    .AddOpcUa()
    .AddSchemaGeneration()
    .Services
    .BuildServiceProvider();

ISchemaProvider provider = services.GetRequiredService<ISchemaProvider>();

if (provider.TryGetSchema(typeId, UaSchemaFormat.JsonCompact, UaSchemaScope.Type, out IUaSchema? schema))
{
    string json = schema.ToSchemaString();
}

The provider can also be assembled without dependency injection:

IDataTypeDefinitionResolver resolver = new DataTypeDefinitionRegistry();
ISchemaProvider provider = new DefaultSchemaProvider(
    resolver,
    [
        new JsonSchemaGenerator(),
        new XsdSchemaGenerator(),
        new BsdSchemaGenerator()
    ]);

Generated model registration extensions add public structure and enumeration activators to an IEncodeableFactory. Use EncodeableFactoryDefinitionSource when schemas should be resolved directly from those compiled definitions instead of a manual registry.

See docs/SchemaGeneration.md in the repository for details.

Product Compatible and additional computed target framework versions.
.NET net8.0 is compatible.  net8.0-android was computed.  net8.0-browser was computed.  net8.0-ios was computed.  net8.0-maccatalyst was computed.  net8.0-macos was computed.  net8.0-tvos was computed.  net8.0-windows was computed.  net9.0 is compatible.  net9.0-android was computed.  net9.0-browser was computed.  net9.0-ios was computed.  net9.0-maccatalyst was computed.  net9.0-macos was computed.  net9.0-tvos was computed.  net9.0-windows was computed.  net10.0 is compatible.  net10.0-android was computed.  net10.0-browser was computed.  net10.0-ios was computed.  net10.0-maccatalyst was computed.  net10.0-macos was computed.  net10.0-tvos was computed.  net10.0-windows was computed. 
.NET Framework net48 is compatible.  net481 was computed. 
Compatible target framework(s)
Included target framework(s) (in package)
Learn more about Target Frameworks and .NET Standard.

NuGet packages (4)

Showing the top 4 NuGet packages that depend on OPCFoundation.NetStandard.Opc.Ua.Core.Schema:

Package Downloads
OPCFoundation.NetStandard.Opc.Ua.Client

OPC UA Client Class Library
OPCFoundation.NetStandard.Opc.Ua.Server

OPC UA Server Class Library
OPCFoundation.NetStandard.Opc.Ua.Bindings.Https

OPC UA Https Binding Library for a Opc.Ua.Server.
OPCFoundation.NetStandard.Opc.Ua.PubSub.Schema

OPC UA PubSub JSON Schema generation for DataSet payloads.

GitHub repositories

This package is not used by any popular GitHub repositories.

Version Downloads Last Updated
2.0.0 459 10/7/2026
2.0.0-preview.6 594 9/30/2026
2.0.0-preview.5 1,763 9/17/2026
2.0.0-preview.4 1,731 9/2/2026
2.0.0-preview.3 2,523 8/28/2026

https://github.com/OPCFoundation/UA-.NETStandard/releases