public static IServiceCollection AddPostgresEventStore(this IServiceCollection services,
Action <PostgresEventSourcingOptions>?optionsAccessor = null, params Assembly[] eventAssemblies)
{
var postgresOptions = new PostgresEventSourcingOptions();
optionsAccessor?.Invoke(postgresOptions);
// ReSharper disable once RedundantAssignment
services.AddEventStore(eventSourcingOptions => eventSourcingOptions = postgresOptions, eventAssemblies)
.Configure(optionsAccessor)
.AddSingleton <PostgresCheckpointManager>()
.TryAddSingleton <PostgresConnection>();
var serviceProvider = services.BuildServiceProvider();
if (!(serviceProvider.GetService <IStreamStore>() is PostgresStreamStore))
{
services.AddSingleton <IStreamStore>(sp =>
{
var connection = sp.GetRequiredService <PostgresConnection>().Build();
var streamStore = new PostgresStreamStore(
new PostgresStreamStoreSettings(connection.ConnectionString)
{
Schema = postgresOptions.Schema
});
if (!postgresOptions.CreateSchemaIfNotExists)
{
return(streamStore);
}
streamStore.CreateSchemaIfNotExists().Wait();
sp.GetRequiredService <PostgresCheckpointManager>().CreateSchemaIfNotExists().Wait();
return(streamStore);
});
}
services.TryAddSingleton <GetGlobalCheckpoint>(sp =>
sp.GetRequiredService <PostgresCheckpointManager>().GetGlobalCheckpoint);
services.TryAddSingleton <SetGlobalCheckpoint>(sp =>
sp.GetRequiredService <PostgresCheckpointManager>().SetGlobalCheckpoint);
return(services);
}
public PostgresConnection(IOptions <PostgresEventSourcingOptions> options)
{
_options = options.ThrowIfNull(nameof(options)).Value;
}