applicationId uz neni povinne

Client/ClientSecretDokladApiBuilder.cs

@@ -0,0 +1,21 @@
+using IdokladSdk;
+using IdokladSdk.Authentication;
+using IdokladSdk.Builders;
+
+namespace Idoklad.Client;
+
+/// <summary>
+/// <see cref="DokladApiBuilder"/> variant that uses a caller-supplied <see cref="IAuthentication"/>
+/// (here <see cref="ClientSecretAuthentication"/>) instead of the SDK's applicationId-mandatory
+/// client credentials. The rest of the builder pipeline (HttpClient, options, urls, Build) is reused.
+/// </summary>
+public sealed class ClientSecretDokladApiBuilder : DokladApiBuilder
+{
+    private readonly IAuthentication _authentication;
+
+    public ClientSecretDokladApiBuilder(string appName, string appVersion, IAuthentication authentication)
+        : base(appName, appVersion)
+        => _authentication = authentication;
+
+    protected override IAuthentication GetAuthentication() => _authentication;
+}