/// <summary>
/// Initializes the app by setting up dependency injection
/// </summary>
/// <param name="context"></param>
public void Initialize(ExtensionConfigContext context)
{
// allow derived classes to register services
var services = new T().Configure(new ServiceCollection().AddSingleton(context.Config.LoggerFactory));
// create injection scope manager
var injectionScopeManager = new InjectionScopeManager(services.BuildServiceProvider(true));
// create filter for managing scopes
var injectionScopeFilter = new InjectionScopeFilter(injectionScopeManager);
context.Config.RegisterExtension <IFunctionInvocationFilter>(injectionScopeFilter);
context.Config.RegisterExtension <IFunctionExceptionFilter>(injectionScopeFilter);
// map injection binding provider to the inject attribute
context.AddBindingRule <InjectAttribute>().Bind(new InjectBindingProvider(injectionScopeManager));
}
/// <summary> /// Binds the value by resolving it from a <see cref="BindingContext"/> /// </summary> /// <param name="context"></param> /// <returns></returns> public Task <IValueProvider> BindAsync(BindingContext context) => BindAsync(InjectionScopeManager.GetServiceProvider(context.FunctionInstanceId).GetRequiredService(Parameter.ParameterType), context.ValueContext);
/// <summary> /// Creates an <see cref="InjectionScopeFilter"/> /// </summary> /// <param name="scopeManager"></param> public InjectionScopeFilter(InjectionScopeManager scopeManager) => ScopeManager = scopeManager;