Add middleware and logic for bootstrapping the session auth

src/auth/config.ts

@@ -0,0 +1,25 @@
+import {Instantiable} from '../di'
+import {ORMUserRepository} from './orm/ORMUserRepository'
+
+/**
+ * Inferface for type-checking the AuthenticatableRepositories values.
+ */
+export interface AuthenticatableRepositoryMapping {
+    orm: Instantiable<ORMUserRepository>,
+}
+
+/**
+ * String mapping of AuthenticatableRepository implementations.
+ */
+export const AuthenticatableRepositories: AuthenticatableRepositoryMapping = {
+    orm: ORMUserRepository,
+}
+
+/**
+ * Interface for making the auth config type-safe.
+ */
+export interface AuthConfig {
+    repositories: {
+        session: keyof AuthenticatableRepositoryMapping,
+    }
+}