Altinn.App.Api 8.12.1

.NET 8.0

dotnet add package Altinn.App.Api --version 8.12.1

NuGet\Install-Package Altinn.App.Api -Version 8.12.1

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="Altinn.App.Api" Version="8.12.1" />

For projects that support PackageReference, copy this XML node into the project file to reference the package.

<PackageVersion Include="Altinn.App.Api" Version="8.12.1" />
                    

                            Directory.Packages.props

<PackageReference Include="Altinn.App.Api" />
                    

                            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 Altinn.App.Api --version 8.12.1

The NuGet Team does not provide support for this client. Please contact its maintainers for support.

#r "nuget: Altinn.App.Api, 8.12.1"

#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 Altinn.App.Api@8.12.1

#: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=Altinn.App.Api&version=8.12.1
                    

                            Install as a Cake Addin

#tool nuget:?package=Altinn.App.Api&version=8.12.1
                    

                            Install as a Cake Tool

The NuGet Team does not provide support for this client. Please contact its maintainers for support.

<br/>

Altinn.App .NET libraries

Altinn.App .NET libraries for apps running on Altinn 3, part of the Altinn Studio product.

These libraries support the runtime of Altinn apps by

Exposing APIs used by service owners and the frontend (app-frontend-react) of an Altinn app
Exposing abstractions to interact with features of Altinn Studio and Altinn 3 Platform services

Contributing

See /CONTRIBUTING.md.

Documentation

Documentation on how to develop Altinn apps can be found here.

Architecture

This template is built using .NET

The below diagram shows the different layers.

Template

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 was computed. 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 was computed. 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.

Product

.NET

Compatible target framework(s)

Included target framework(s) (in package)

Learn more about Target Frameworks and .NET Standard.

net8.0
- Altinn.ApiClients.Maskinporten (>= 10.0.1)
- Altinn.App.Core (>= 8.12.1)
- Altinn.Common.AccessTokenClient (>= 1.1.5)
- Altinn.Common.EFormidlingClient (>= 1.3.3)
- Altinn.Common.PEP (>= 4.2.2)
- Altinn.Platform.Models (>= 1.6.1)
- Altinn.Platform.Storage.Interface (>= 4.7.0)
- Azure.Extensions.AspNetCore.Configuration.Secrets (>= 1.5.0)
- Azure.Identity (>= 1.21.0)
- Azure.Monitor.OpenTelemetry.Exporter (>= 1.7.0)
- JsonPatch.Net (>= 4.0.1)
- JWTCookieAuthentication (>= 3.0.1)
- Microsoft.ApplicationInsights.AspNetCore (>= 2.23.0)
- Microsoft.Extensions.Caching.Hybrid (>= 10.5.0)
- Microsoft.FeatureManagement.AspNetCore (>= 4.4.0)
- Microsoft.IdentityModel.Protocols.OpenIdConnect (>= 8.17.0)
- Microsoft.OpenApi (>= 1.6.29)
- Microsoft.Rest.ClientRuntime (>= 2.3.24)
- Microsoft.Rest.ClientRuntime.Azure (>= 3.3.19)
- Newtonsoft.Json (>= 13.0.4)
- OpenTelemetry (>= 1.15.3)
- OpenTelemetry.Api (>= 1.15.3)
- OpenTelemetry.Exporter.OpenTelemetryProtocol (>= 1.15.3)
- OpenTelemetry.Extensions.Hosting (>= 1.15.3)
- OpenTelemetry.Instrumentation.AspNetCore (>= 1.15.2)
- OpenTelemetry.Instrumentation.Http (>= 1.15.1)
- OpenTelemetry.Instrumentation.Runtime (>= 1.15.1)
- Swashbuckle.AspNetCore (>= 9.0.6)
- System.Text.RegularExpressions (>= 4.3.1)

NuGet packages (4)

Showing the top 4 NuGet packages that depend on Altinn.App.Api:

Package	Downloads
Dibk.Ftpb.Common.AltinnApps Common classes and constants used for developing Altinn 3 apps in the Ftpb ecosystem	7.0K
DsbNorge.A3Forms Package containing reusable code for Altinn 3 forms managed by DSB.	4.1K
Altinn.App.Clients.Fiks Package Description	3.9K
BtAltinnSupport Package Description	1.7K

GitHub repositories (1)

Showing the top 1 popular GitHub repositories that depend on Altinn.App.Api:

Repository	Stars
Altinn/altinn-studio Next generation open source Altinn platform and applications.	162

Version	Downloads	Last Updated
8.12.1	513	5/20/2026
8.12.0	1,213	4/29/2026
8.12.0-preview.1	69	4/22/2026
8.11.5	452	5/19/2026
8.11.4	133	4/29/2026
8.11.3	706	4/9/2026
8.11.2	500	3/25/2026
8.11.1	221	3/24/2026
8.11.0	420	3/23/2026
8.11.0-rc1	127	3/18/2026
8.11.0-rc.3	77	3/18/2026
8.11.0-rc.2	65	3/18/2026
8.11.0-preview.1	88	2/25/2026
8.10.5	474	3/13/2026
8.10.4	224	3/13/2026
8.10.3	786	3/5/2026
8.10.2	845	2/25/2026
8.10.1	1,014	2/23/2026
8.10.0	834	2/16/2026
8.10.0-preview.3	88	1/30/2026

Release notes look best on GitHub: https://github.com/Altinn/app-lib-dotnet/releases/tag/v8.12.1

## What's Changed
### Breaking Changes 🛠
* fix: Cast null to 0 in arithmetic expressions by @TomasEng in https://github.com/Altinn/app-lib-dotnet/pull/1751
### New Features 🎉
* Rewrite app lib to support streaming of attachments by @MagnusHAa in https://github.com/Altinn/app-lib-dotnet/pull/1734
* feat: Add binary update support to instance data mutator by @bjorntore in https://github.com/Altinn/app-lib-dotnet/pull/1754
* feat: Allow any number of operands in commutative arithmetic expressions by @TomasEng in https://github.com/Altinn/app-lib-dotnet/pull/1752
### Bugfixes 🐛
* Remove RequiredService from service lookup of INetsWebhookSecretProvi… by @bjorntore in https://github.com/Altinn/app-lib-dotnet/pull/1742
* fix: support non-list collections in form wrapper generator by @martinothamar-agent in https://github.com/Altinn/app-lib-dotnet/pull/1758
* fix: ignore non-route endpoints in scope auth by @martinothamar-agent in https://github.com/Altinn/app-lib-dotnet/pull/1759
### Dependency Upgrades 📦
* Update nuget non-major dependencies (minor) by @renovate[bot] in https://github.com/Altinn/app-lib-dotnet/pull/1719
## New Contributors
* @martinothamar-agent made their first contribution in https://github.com/Altinn/app-lib-dotnet/pull/1757
* @TomasEng made their first contribution in https://github.com/Altinn/app-lib-dotnet/pull/1751
**Full Changelog**: https://github.com/Altinn/app-lib-dotnet/compare/v8.12.0...v8.12.1