The library fully supports dependency injection. Library services should be registered with the singleton scope. The library provides an AddEventStreamDotNet helper extension to make configuration and registration easier. This is the recommended configuration pattern. The extension method accepts an optional ILoggerFactory to enable debug logging, and optional configuration lambdas corresponding to each of the library services.
An example which references two domain models (based on the second example in the Configuration Basics topic), domain event handlers for each, and projection handlers for one of the domain models:
// not shown: AppConfig reads appsettings.json
services.AddEventStreamDotNet(
loggerFactory: null, // no debug logging
domainModelConfigs: cfg =>
{
// settings are instances of EventStreamDotNetConfig read from appsettings.json
cfg.AddConfiguration<Customer>(AppConfig.Get.CustomerModelSettings);
cfg.AddConfiguration<HumanResources>(AppConfig.Get.HumanResourcesModelSettings);
},
domainEventHandlers: cfg =>
{
cfg.RegisterDomainEventHandler<Customer, CustomerEventHandler>();
cfg.RegisterDomainEventHandler<HumanResources, HumanResourcesEventHandler>();
},
projectionHandlers: cfg =>
{
cfg.RegisterProjectionHandler<Customer, CustomerProjectionHandler>();
});
);