WebSocket Sample

yoshikouki · Mar 2, 2024 · 080afd0 · 080afd0
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diff --git a/sample/with-websocket/.gitignore b/sample/with-websocket/.gitignore
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+
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diff --git a/sample/with-websocket/README.md b/sample/with-websocket/README.md
@@ -0,0 +1,13 @@
+# basic-hot-reload
+
+## Setup
+
+```bash
+bun install
+```
+
+# To run
+
+```bash
+bun dev
+```
diff --git a/sample/with-websocket/bun.lockb b/sample/with-websocket/bun.lockb
diff --git a/sample/with-websocket/package.json b/sample/with-websocket/package.json
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+{
+  "name": "basic-hot-reload",
+  "module": "src/index.ts",
+  "type": "module",
+  "scripts": {
+    "dev": "bun --hot src/index.tsx"
+  },
+  "devDependencies": {
+    "@types/bun": "latest",
+    "@types/react": "^18.2.61",
+    "@types/react-dom": "^18.2.19",
+    "add": "^2.0.6",
+    "bun": "^1.0.29",
+    "typescript": "^5"
+  },
+  "dependencies": {
+    "react": "^18.2.0",
+    "react-dom": "^18.2.0"
+  }
+}
diff --git a/sample/with-websocket/src/app.tsx b/sample/with-websocket/src/app.tsx
@@ -0,0 +1,15 @@
+export const App = () => {
+  return (
+    <html lang="en">
+      <head>
+        <meta charSet="utf-8" />
+        <meta name="viewport" content="width=device-width, initial-scale=1" />
+        <title>Bun Hot Reload</title>
+        <script src="/dist/client.js" defer />
+      </head>
+      <body>
+        <div id="root" />
+      </body>
+    </html>
+  );
+};
diff --git a/sample/with-websocket/src/client.tsx b/sample/with-websocket/src/client.tsx
@@ -0,0 +1,36 @@
+import { useEffect, useState } from "react";
+import { createRoot } from "react-dom/client";
+
+const ws = new WebSocket("ws://localhost:3000");
+
+const Client = () => {
+  const [tick, setTick] = useState("");
+
+  useEffect(() => {
+    ws.onopen = () => {
+      console.log("connected");
+    };
+    ws.onmessage = (event) => {
+      setTick(event.data.toString());
+    };
+    ws.onclose = () => {
+      console.log("disconnected");
+    };
+    ws.onerror = (error) => {
+      console.error(error);
+    };
+  });
+
+  return (
+    <>
+      <div>{tick}</div>
+      <button onClick={() => ws.send(new Date().toISOString())} type="button">
+        Push
+      </button>
+    </>
+  );
+};
+
+const domNode = document.getElementById("root") ?? undefined;
+const root = createRoot(domNode);
+root.render(<Client />);
diff --git a/sample/with-websocket/src/index.tsx b/sample/with-websocket/src/index.tsx
@@ -0,0 +1,49 @@
+import configureHotReload from "bun-hot-reload";
+import { renderToString } from "react-dom/server";
+import { App } from "./app";
+
+Bun.serve(
+  configureHotReload(
+    {
+      fetch: async (req, server) => {
+        const url = new URL(req.url);
+        if (url.pathname === "/") {
+          if (server.upgrade(req)) {
+            return;
+          }
+          return new Response(renderToString(<App />), {
+            headers: { "Content-Type": "text/html" },
+          });
+        }
+        if (url.pathname === "/dist/client.js") {
+          return new Response(Bun.file("dist/client.js"), {
+            headers: { "Content-Type": "application/javascript" },
+          });
+        }
+        return new Response("Not Found", { status: 404 });
+      },
+
+      websocket: {
+        message(ws, message) {
+          console.log("WebSocket message:", message);
+          ws.send(new Date().toISOString());
+        },
+        open(ws) {
+          console.log("WebSocket connected");
+          setInterval(() => {
+            ws.send(new Date().toISOString());
+          }, 1000);
+        },
+        close(ws, code, message) {
+          console.log("WebSocket disconnected");
+        },
+      },
+    },
+    {
+      buildConfig: {
+        entrypoints: ["src/client.tsx"],
+        outdir: "dist",
+      },
+    },
+  ),
+);
diff --git a/sample/with-websocket/tsconfig.json b/sample/with-websocket/tsconfig.json
@@ -0,0 +1,35 @@
+{
+  "compilerOptions": {
+    // Enable latest features
+    "lib": ["ESNext"],
+    "target": "ESNext",
+    "module": "ESNext",
+    "moduleDetection": "force",
+    "jsx": "react-jsx",
+    "allowJs": true,
+
+    // Bundler mode
+    "moduleResolution": "bundler",
+    "allowImportingTsExtensions": true,
+    "verbatimModuleSyntax": true,
+    "noEmit": true,
+
+    // Best practices
+    "strict": true,
+    "skipLibCheck": true,
+    "noFallthroughCasesInSwitch": true,
+
+    // Some stricter flags (disabled by default)
+    "noUnusedLocals": false,
+    "noUnusedParameters": false,
+    "noPropertyAccessFromIndexSignature": false,
+
+    // Paths
+    "baseUrl": "../../",
+    "paths": {
+      "bun-hot-reload": [
+        "./src/index.ts"
+      ],
+    }
+  }
+}