fix: use Deno.serve() instead of serve()

`serve()` was removed in Deno v1 (May 2020).

Release notes: https://github.com/denoland/deno/releases/v1.0.0

Related: #17

Note: the `abort` signal listener was removed because it is always triggered, even when the response is successfully sent

See also: denoland/deno#27005

.github/ISSUE_TEMPLATE/bug_report.md

@@ -13,7 +13,6 @@ A clear and concise description of what the bug is.
 **To Reproduce**
 
 ```ts
-import { serve } from "https://deno.land/[email protected]/http/server.ts";
 import { Server } from "https://deno.land/x/[email protected]/mod.ts";
 
 const io = new Server();
@@ -28,7 +27,8 @@ io.on("connection", (socket) => {
   });
 });
 
-await serve(io.handler(), {
+Deno.serve({
+  handler: io.handler(),
   port: 3000,
 });
 ```

.github/PULL_REQUEST_TEMPLATE/feature.md

@@ -11,7 +11,6 @@ Related issue or discussion:
 **New behavior**
 
 ```ts
-import { serve } from "https://deno.land/[email protected]/http/server.ts";
 import { Server } from "https://deno.land/x/[email protected]/mod.ts";
 
 const io = new Server();
@@ -26,7 +25,8 @@ io.on("connection", (socket) => {
   });
 });
 
-await serve(io.handler(), {
+Deno.serve({
+  handler: io.handler(),
   port: 3000,
 });
 ```

README.md

@@ -24,7 +24,6 @@ Table of content:
 ## Usage
 
 ```ts
-import { serve } from "https://deno.land/[email protected]/http/server.ts";
 import { Server } from "https://deno.land/x/[email protected]/mod.ts";
 
 const io = new Server();
@@ -39,7 +38,8 @@ io.on("connection", (socket) => {
   });
 });
 
-await serve(io.handler(), {
+Deno.serve({
+  handler: io.handler(),
   port: 3000,
 });
 ```
@@ -86,7 +86,6 @@ You need to use the [.handle()](https://github.com/oakserver/oak#handle-method)
 method:
 
 ```ts
-import { serve } from "https://deno.land/[email protected]/http/server.ts";
 import { Server } from "https://deno.land/x/[email protected]/mod.ts";
 import { Application } from "https://deno.land/x/[email protected]/mod.ts";
 
@@ -112,7 +111,8 @@ const handler = io.handler(async (req) => {
   return await app.handle(req) || new Response(null, { status: 404 });
 });
 
-await serve(handler, {
+Deno.serve({
+  handler,
   port: 3000,
 });
 ```
@@ -281,7 +281,6 @@ servers.
 Documentation: https://socket.io/docs/v4/redis-adapter/
 
 ```js
-import { serve } from "https://deno.land/[email protected]/http/server.ts";
 import {
   createRedisAdapter,
   createRedisClient,
@@ -301,7 +300,8 @@ const io = new Server({
   adapter: createRedisAdapter(pubClient, subClient),
 });
 
-await serve(io.handler(), {
+Deno.serve({
+  handler: io.handler(),
   port: 3000,
 });
 ```

deps.ts

@@ -1,6 +1 @@
-export {
-  type ConnInfo,
-  type Handler,
-} from "https://deno.land/[email protected]/http/server.ts";
-
 export { getLogger } from "https://deno.land/[email protected]/log/mod.ts";

mod.ts

@@ -1,6 +1,5 @@
 /**
  * @example
- * import { serve } from "https://deno.land/[email protected]/http/server.ts";
  * import { Server } from "https://deno.land/x/[email protected]/mod.ts";
  *
  * const io = new Server();
@@ -21,7 +20,8 @@
  *   });
  * });
  *
- * await serve(io.handler(), {
+ * Deno.serve({
+ *   handler: io.handler(),
  *   port: 3000,
  * });
  */
@@ -40,7 +40,6 @@ export {
  * Documentation: https://socket.io/docs/v4/redis-adapter/
  *
  * @example
- * import { serve } from "https://deno.land/std/http/server.ts";
  * import { Server, createRedisAdapter, createRedisClient } from "https://deno.land/x/socket_io/mod.ts";
  *
  * const [pubClient, subClient] = await Promise.all([
@@ -56,8 +55,9 @@ export {
  *     adapter: createRedisAdapter(pubClient, subClient)
  * });
  *
- * await serve(io.handler(), {
- *     port: 3000
+ * Deno.serve({
+ *   handler: io.handler(),
+ *   port: 3000
  * });
  */
 export {

packages/engine.io/examples/protocol-compliance-test/index.ts

@@ -1,4 +1,3 @@
-import { serve } from "../../../../test_deps.ts";
 import { Server } from "../../mod.ts";
 
 const engine = new Server({
@@ -17,6 +16,7 @@ engine.on("connection", (socket) => {
   });
 });
 
-await serve(engine.handler(), {
+Deno.serve({
+  handler: engine.handler(),
   port: 3000,
 });

packages/engine.io/lib/server.ts

@@ -1,4 +1,4 @@
-import { ConnInfo, getLogger, Handler } from "../../../deps.ts";
+import { getLogger } from "../../../deps.ts";
 import { EventEmitter } from "../../event-emitter/mod.ts";
 import { Socket } from "./socket.ts";
 import { Polling } from "./transports/polling.ts";
@@ -41,7 +41,7 @@ export interface ServerOptions {
    */
   allowRequest?: (
     req: Request,
-    connInfo: ConnInfo,
+    connInfo: Deno.ServeHandlerInfo,
   ) => Promise<void>;
   /**
    * The options related to Cross-Origin Resource Sharing (CORS)
@@ -53,15 +53,15 @@ export interface ServerOptions {
   editHandshakeHeaders?: (
     responseHeaders: Headers,
     req: Request,
-    connInfo: ConnInfo,
+    connInfo: Deno.ServeHandlerInfo,
   ) => void | Promise<void>;
   /**
    * A function that allows to edit the response headers of all requests
    */
   editResponseHeaders?: (
     responseHeaders: Headers,
     req: Request,
-    connInfo: ConnInfo,
+    connInfo: Deno.ServeHandlerInfo,
   ) => void | Promise<void>;
 }
 
@@ -73,7 +73,11 @@ interface ConnectionError {
 }
 
 interface ServerReservedEvents {
-  connection: (socket: Socket, request: Request, connInfo: ConnInfo) => void;
+  connection: (
+    socket: Socket,
+    request: Request,
+    connInfo: Deno.ServeHandlerInfo,
+  ) => void;
   connection_error: (err: ConnectionError) => void;
 }
 
@@ -124,8 +128,11 @@ export class Server extends EventEmitter<
    *
    * @param additionalHandler - another handler which will receive the request if the path does not match
    */
-  public handler(additionalHandler?: Handler) {
-    return (req: Request, connInfo: ConnInfo): Response | Promise<Response> => {
+  public handler(additionalHandler?: Deno.ServeHandler) {
+    return (
+      req: Request,
+      connInfo: Deno.ServeHandlerInfo,
+    ): Response | Promise<Response> => {
       const url = new URL(req.url);
       if (url.pathname === this.opts.path) {
         return this.handleRequest(req, connInfo, url);
@@ -147,7 +154,7 @@ export class Server extends EventEmitter<
    */
   private async handleRequest(
     req: Request,
-    connInfo: ConnInfo,
+    connInfo: Deno.ServeHandlerInfo,
     url: URL,
   ): Promise<Response> {
     getLogger("engine.io").debug(`[server] handling ${req.method} ${req.url}`);
@@ -321,7 +328,7 @@ export class Server extends EventEmitter<
    */
   private async handshake(
     req: Request,
-    connInfo: ConnInfo,
+    connInfo: Deno.ServeHandlerInfo,
     responseHeaders: Headers,
   ): Promise<Response> {
     const id = generateId();

packages/engine.io/lib/transports/polling.ts

@@ -47,11 +47,6 @@ export class Polling extends Transport {
       );
     }
 
-    req.signal.addEventListener("abort", () => {
-      // note: this gets never triggered
-      this.onError("poll connection closed prematurely");
-    });
-
     getLogger("engine.io").debug(
       "[polling] new polling request",
     );
@@ -75,11 +70,6 @@ export class Polling extends Transport {
     req: Request,
     responseHeaders: Headers,
   ): Promise<Response> {
-    req.signal.addEventListener("abort", () => {
-      // note: this gets never triggered
-      this.onError("data request connection closed prematurely");
-    });
-
     getLogger("engine.io").debug(
       "[polling] new data request",
     );

packages/engine.io/test/setup.test.ts

@@ -1,5 +1,4 @@
 import { Server } from "../lib/server.ts";
-import { serve } from "../../../test_deps.ts";
 import { createPartialDone } from "../../util.test.ts";
 
 export function setup(
@@ -10,7 +9,8 @@ export function setup(
   return new Promise((resolve, reject) => {
     const abortController = new AbortController();
 
-    serve(engine.handler(), {
+    Deno.serve({
+      handler: engine.handler(),
       onListen: ({ port }) => {
         const partialDone = createPartialDone(count, () => {
           // close the server

packages/socket.io-redis-adapter/test/setup.test.ts

@@ -2,7 +2,6 @@ import { Server, Socket } from "../../socket.io/mod.ts";
 import { createPartialDone, runHandshake, waitFor } from "../../util.test.ts";
 import { connect } from "../../../vendor/deno.land/x/[email protected]/mod.ts";
 import { createAdapter } from "../mod.ts";
-import { serve } from "../../../test_deps.ts";
 
 function createRedisClient() {
   return connect({
@@ -29,7 +28,8 @@ function createServer(port: number): Promise<TestServer> {
 
         const abortController = new AbortController();
 
-        return serve(io.handler(), {
+        return Deno.serve({
+          handler: io.handler(),
           port,
           signal: abortController.signal,
           onListen: async () => {

packages/socket.io/examples/protocol-compliance-test/index.ts

@@ -1,4 +1,3 @@
-import { serve } from "../../../../test_deps.ts";
 import { Server } from "../../mod.ts";
 
 const io = new Server({
@@ -28,6 +27,7 @@ io.of("/custom").on("connection", (socket) => {
   socket.emit("auth", socket.handshake.auth);
 });
 
-await serve(io.handler(), {
+Deno.serve({
+  handler: io.handler(),
   port: 3000,
 });

packages/socket.io/lib/client.ts

@@ -1,7 +1,7 @@
 import { EventsMap } from "../../event-emitter/mod.ts";
 import { Decoder, Packet, PacketType } from "../../socket.io-parser/mod.ts";
 import { type Socket as RawSocket } from "../../engine.io/mod.ts";
-import { ConnInfo, getLogger } from "../../../deps.ts";
+import { getLogger } from "../../../deps.ts";
 import { Handshake, Socket } from "./socket.ts";
 import { Server } from "./server.ts";
 import { RawData } from "../../engine.io-parser/mod.ts";
@@ -43,7 +43,7 @@ export class Client<
     decoder: Decoder,
     conn: RawSocket,
     req: Request,
-    connInfo: ConnInfo,
+    connInfo: Deno.ServeHandlerInfo,
   ) {
     this.server = server;
     this.decoder = decoder;

packages/socket.io/lib/server.ts

@@ -9,7 +9,7 @@ import {
   EventParams,
   EventsMap,
 } from "../../event-emitter/mod.ts";
-import { getLogger, type Handler } from "../../../deps.ts";
+import { getLogger } from "../../../deps.ts";
 import { Client } from "./client.ts";
 import { Decoder, Encoder } from "../../socket.io-parser/mod.ts";
 import { Namespace, NamespaceReservedEvents } from "./namespace.ts";
@@ -75,7 +75,6 @@ type ParentNspNameMatchFn = (
  * Represents a Socket.IO server.
  *
  * @example
- * import { serve } from "https://deno.land/[email protected]/http/server.ts";
  * import { Server } from "https://deno.land/x/[email protected]/mod.ts";
  *
  * const io = new Server();
@@ -96,7 +95,8 @@ type ParentNspNameMatchFn = (
  *   });
  * });
  *
- * await serve(io.handler(), {
+ * Deno.serve({
+ *   handler: io.handler(),
  *   port: 3000,
  * });
  */
@@ -183,18 +183,18 @@ export class Server<
    * Returns a request handler.
    *
    * @example
-   * import { serve } from "https://deno.land/[email protected]/http/server.ts";
    * import { Server } from "https://deno.land/x/[email protected]/mod.ts";
    *
    * const io = new Server();
    *
-   * await serve(io.handler(), {
+   * Deno.serve({
+   *   handler: io.handler(),
    *   port: 3000,
    * });
    *
    * @param additionalHandler - another handler which will receive the request if the path does not match
    */
-  public handler(additionalHandler?: Handler) {
+  public handler(additionalHandler?: Deno.ServeHandler) {
     return this.engine.handler(additionalHandler);
   }
 
@@ -296,21 +296,21 @@ export class Server<
    * Closes the server.
    *
    * @example
-   * import { serve } from "https://deno.land/[email protected]/http/server.ts";
    * import { Server } from "https://deno.land/x/[email protected]/mod.ts";
    *
    * const io = new Server();
    * const abortController = new AbortController();
    *
-   * await serve(io.handler(), {
+   * Deno.serve({
+   *   handler: io.handler(),
    *   port: 3000,
    *   signal: abortController.signal,
    *   onListen: () => {
    *     setTimeout(() => {
    *       // close the HTTP server
    *       abortController.abort();
    *       // close the Socket.IO server
-   *       server.close();
+   *       io.close();
    *     }, 10000);
    *   }
    * });