Add support for middleware

src/service/HTTPServer.ts

@@ -12,6 +12,8 @@ import {PersistSessionHTTPModule} from "../http/kernel/module/PersistSessionHTTP
 import {MountActivatedRouteHTTPModule} from "../http/kernel/module/MountActivatedRouteHTTPModule";
 import {ExecuteResolvedRouteHandlerHTTPModule} from "../http/kernel/module/ExecuteResolvedRouteHandlerHTTPModule";
 import {error} from "../http/response/ErrorResponseFactory";
+import {ExecuteResolvedRoutePreflightHTTPModule} from "../http/kernel/module/ExecuteResolvedRoutePreflightHTTPModule";
+import {ExecuteResolvedRoutePostflightHTTPModule} from "../http/kernel/module/ExecuteResolvedRoutePostflightHTTPModule";
 
 @Singleton()
 export class HTTPServer extends Unit {
@@ -33,6 +35,8 @@ export class HTTPServer extends Unit {
         PersistSessionHTTPModule.register(this.kernel)
         MountActivatedRouteHTTPModule.register(this.kernel)
         ExecuteResolvedRouteHandlerHTTPModule.register(this.kernel)
+        ExecuteResolvedRoutePreflightHTTPModule.register(this.kernel)
+        ExecuteResolvedRoutePostflightHTTPModule.register(this.kernel)
 
         await new Promise<void>((res, rej) => {
             this.server = createServer(this.handler)

src/service/Middlewares.ts

@@ -0,0 +1,20 @@
+import {CanonicalStatic} from "./CanonicalStatic";
+import {Singleton, Instantiable} from "@extollo/di";
+import {CanonicalDefinition} from "./Canonical";
+import {Middleware} from "../http/routing/Middleware";
+
+@Singleton()
+export class Middlewares extends CanonicalStatic<Instantiable<Middleware>, Middleware> {
+    protected appPath = ['http', 'middlewares']
+    protected canonicalItem = 'middleware'
+    protected suffix = '.middleware.js'
+
+    public async initCanonicalItem(definition: CanonicalDefinition) {
+        const item = await super.initCanonicalItem(definition)
+        if ( !(item.prototype instanceof Middleware) ) {
+            throw new TypeError(`Invalid middleware definition: ${definition.originalName}. Controllers must extend from @extollo/lib.http.routing.Middleware.`)
+        }
+
+        return item
+    }
+}