Started to implement server

vendor/deno.land/x/oak@v12.1.0/mod.ts

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+// Copyright 2018-2022 the oak authors. All rights reserved. MIT license.
+
+/**
+ * A middleware framework for handling HTTP with Deno.
+ *
+ * oak works well on both Deno CLI and Deno deploy, and is inspired by
+ * [koa](https://koajs.com/). It works well with both the Deno CLI and
+ * [Deno Deploy](https://deno.com/deploy).
+ *
+ * ### Example server
+ *
+ * A minimal router server which responds with content on `/`. With Deno CLI
+ * this will listen on port 8080 and on Deploy, this will simply serve requests
+ * received on the application.
+ *
+ * ```ts
+ * import { Application, Router } from "https://deno.land/x/oak/mod.ts";
+ *
+ * const router = new Router();
+ * router.get("/", (ctx) => {
+ *   ctx.response.body = `<!DOCTYPE html>
+ *     <html>
+ *       <head><title>Hello oak!</title><head>
+ *       <body>
+ *         <h1>Hello oak!</h1>
+ *       </body>
+ *     </html>
+ *   `;
+ * });
+ *
+ * const app = new Application();
+ * app.use(router.routes());
+ * app.use(router.allowedMethods());
+ *
+ * app.listen({ port: 8080 });
+ * ```
+ *
+ * ### Using Deno's flash server
+ *
+ * Currently, Deno's flash server is not the default, even with the `--unstable`
+ * flag. In order to use the flash server, you need to provide the
+ * {@linkcode FlashServer} to the {@linkcode Application} constructor:
+ *
+ * ```ts
+ * import { Application, FlashServer } from "https://deno.land/x/oak/mod.ts";
+ *
+ * const app = new Application({ serverConstructor: FlashServer });
+ *
+ * // register middleware
+ *
+ * app.listen({ port: 8080 });
+ * ```
+ *
+ * Note the currently Deno's flash server requires the `--unstable` flag. If it
+ * isn't present, the application will error on listening.
+ *
+ * @module
+ */
+
+export { Application } from "./application.ts";
+export type {
+  ApplicationOptions,
+  ListenOptions,
+  ListenOptionsBase,
+  ListenOptionsTls,
+  State,
+} from "./application.ts";
+export type {
+  BodyBytes,
+  BodyContentTypes,
+  BodyForm,
+  BodyFormData,
+  BodyJson,
+  BodyOptions,
+  BodyOptionsContentTypes,
+  BodyReader,
+  BodyStream,
+  BodyText,
+  BodyType,
+  BodyUndefined,
+} from "./body.ts";
+export { Context, type ContextSendOptions } from "./context.ts";
+export * as helpers from "./helpers.ts";
+export * as etag from "./etag.ts";
+export { HttpRequest } from "./http_request.ts";
+export { FlashServer, hasFlash } from "./http_server_flash.ts";
+export { HttpServer as HttpServerNative } from "./http_server_native.ts";
+export { type NativeRequest } from "./http_server_native_request.ts";
+export { proxy } from "./middleware/proxy.ts";
+export type { ProxyOptions } from "./middleware/proxy.ts";
+export { compose as composeMiddleware } from "./middleware.ts";
+export type { Middleware } from "./middleware.ts";
+export { FormDataReader } from "./multipart.ts";
+export type {
+  FormDataBody,
+  FormDataFile,
+  FormDataReadOptions,
+} from "./multipart.ts";
+export { ifRange, MultiPartStream, parseRange } from "./range.ts";
+export type { ByteRange } from "./range.ts";
+export { Request } from "./request.ts";
+export { REDIRECT_BACK, Response } from "./response.ts";
+export { Router } from "./router.ts";
+export type {
+  Route,
+  RouteParams,
+  RouterAllowedMethodsOptions,
+  RouterContext,
+  RouterMiddleware,
+  RouterOptions,
+  RouterParamMiddleware,
+} from "./router.ts";
+export { send } from "./send.ts";
+export type { SendOptions } from "./send.ts";
+export { ServerSentEvent } from "./server_sent_event.ts";
+export type {
+  ServerSentEventInit,
+  ServerSentEventTarget,
+} from "./server_sent_event.ts";
+/** Utilities for making testing oak servers easier. */
+export * as testing from "./testing.ts";
+export type {
+  ErrorStatus,
+  HTTPMethods,
+  RedirectStatus,
+  ServerConstructor,
+} from "./types.d.ts";
+export { isErrorStatus, isRedirectStatus } from "./util.ts";
+
+// Re-exported from `std/http`
+export {
+  createHttpError,
+  errors as httpErrors,
+  HttpError,
+  isHttpError,
+  SecureCookieMap as Cookies,
+  type SecureCookieMapGetOptions as CookiesGetOptions,
+  type SecureCookieMapSetDeleteOptions as CookiesSetDeleteOptions,
+  Status,
+  STATUS_TEXT,
+} from "./deps.ts";