Tharga.Fortnox

OAuth token management for the Fortnox API. Built for .NET 8 / 9 / 10. Provides the authentication flow (BuildConnectUriAsync → ConnectAsync → DisconnectAsync), per-key access-token caching, thread-safe refresh, and a small Result<T> surface for explicit success/failure handling.

Package

Package	What it does
Tharga.Fortnox	OAuth connection service + token manager. No Fortnox API client — pair with any Fortnox REST client of your choice.

Quick start

dotnet add package Tharga.Fortnox

builder.Services.AddThargaFortnox(o =>
{
    o.ClientId = "...";
    o.ClientSecret = "...";
    o.RedirectUri = new Uri("https://your-app/fortnox/connect");
});

public class MyFortnoxService(IFortnoxTokenManager tokenManager)
{
    public async Task DoWorkAsync(string tenantId)
    {
        var result = await tokenManager.GetAccessTokenAsync(
            tenantId,
            loadToken: () => LoadTokenFromDb(tenantId),
            saveToken: token => SaveTokenToDb(tenantId, token));

        if (!result.IsSuccess) return;
        var accessToken = result.Value;
        // ... call Fortnox with accessToken
    }
}

Where next

• Articles — feature guides: getting started, connection flow, token manager, scopes
• API reference — every public type, method, and option, generated from XML doc comments
• GitHub — source, issues, releases