Merge pull request #15 from ty-ras/issue/14-expose-koa-options

#14 Exposing Koa options to the users of createSe…

server/package.json

@@ -1,6 +1,6 @@
 {
   "name": "@ty-ras/server-koa",
-  "version": "2.0.0",
+  "version": "2.1.0",
   "author": {
     "name": "Stanislav Muhametsin",
     "email": "[email protected]",

server/src/internal.ts

@@ -1,5 +1,5 @@
 /**
- * @file This file contains internal code for e.g. implementing Node HTTP server -specific functionality of {@link server.ServerFlowCallbacksWithoutState}.
+ * @file This file contains internal code for e.g. implementing Koa HTTP server -specific functionality of {@link server.ServerFlowCallbacksWithoutState}.
  */
 
 import type * as server from "@ty-ras/server";

server/src/server.ts

@@ -175,8 +175,21 @@ export interface ServerCreationOptions<
    * Set this to `true` explicitly if automatic detection of server being secure by {@link createServer} fails.
    */
   secure?: TSecure | undefined;
+
+  /**
+   * Optional options to {@link Koa} constructor.
+   */
+  koaOptions?: KoaOptions;
 }
 
+/**
+ * This type contains all the options one can give to Koa server.
+ */
+export type KoaOptions = Exclude<
+  ConstructorParameters<typeof Koa>[0],
+  undefined
+>;
+
 const secureHttp1OptionKeys: ReadonlyArray<keyof tls.TlsOptions> = [
   "key",
   "cert",
@@ -227,11 +240,12 @@ const createHandleHttpRequest = <
   endpoints,
   createState,
   events,
+  koaOptions,
 }: Pick<
   ServerCreationOptions<TStateInfo, TState, never, never>,
-  "endpoints" | "createState" | "events"
+  "endpoints" | "createState" | "events" | "koaOptions"
 >): HTTP1Or2Handler<TRequest, TResponse> => {
-  return new Koa()
+  return new Koa(koaOptions)
     .use(middleware.createMiddleware(endpoints, createState, events))
     .callback();
 };