C# SDK authentication

var emailLib = new EmailLibrary("YOUR_API_KEY");

var emailLib = new EmailLibrary(
    Environment.GetEnvironmentVariable("PAUBOX_API_KEY")
);

{
  "APIKey": "YOUR_API_KEY"
}

// In Program.cs or Startup.cs
builder.Services.AddSingleton<IEmailLibrary>(sp =>
{
    var config = sp.GetRequiredService<IConfiguration>();
    return new EmailLibrary(config);
});

var emailLib = new EmailLibrary(configuration);

Authorization: Token token=YOUR_API_KEY

var formsLib = new FormsLibrary();

var formsLib = new FormsLibrary("YOUR_API_KEY");

// Or read FormsAPIKey from IConfiguration
var configuredFormsLib = new FormsLibrary(configuration);

builder.Services.AddSingleton<IFormsLibrary, FormsLibrary>();