chore: Add file upload example

aklinker1 · aklinker1 · commit 93cf160188ff · 2026-02-01T11:30:03.000-06:00
diff --git a/examples/file-upload/index.html b/examples/file-upload/index.html
@@ -0,0 +1,21 @@
+<!doctype html>
+<html lang="en">
+  <head>
+    <meta charset="UTF-8" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
+    <title>File Upload Example</title>
+  </head>
+  <body>
+    <form action="/upload-one" method="POST" enctype="multipart/form-data">
+      <input type="file" name="file" />
+      <button>Upload One</button>
+    </form>
+
+    <hr />
+
+    <form action="/upload-many" method="POST" enctype="multipart/form-data">
+      <input type="file" name="files" multiple />
+      <button>Upload Many</button>
+    </form>
+  </body>
+</html>
diff --git a/examples/file-upload/main.ts b/examples/file-upload/main.ts
@@ -0,0 +1,55 @@
+import { createApp, HttpStatus } from "@aklinker1/zeta";
+import {
+  NoResponse,
+  UploadFileBody,
+  UploadFilesBody,
+} from "@aklinker1/zeta/schema";
+import { resolve } from "node:path";
+import testPage from "./index.html";
+
+async function writeFile(file: File): Promise<void> {
+  const path = resolve("data", file.name);
+  await Bun.write(path, file);
+  console.log(`Saved ${file.name} to: ${path}`);
+}
+
+const app = createApp()
+  .post(
+    "/upload-one",
+    {
+      body: UploadFileBody,
+      responses: {
+        [HttpStatus.Found]: NoResponse,
+      },
+    },
+    async ({ body, status, set }) => {
+      await writeFile(body);
+
+      // Redirect since the test webpage uses forms, not JS
+      set.headers["Location"] = "/";
+      return status(HttpStatus.Found, undefined);
+    },
+  )
+  .post(
+    "/upload-many",
+    {
+      body: UploadFilesBody,
+      responses: {
+        [HttpStatus.Found]: NoResponse,
+      },
+    },
+    async ({ body, status, set }) => {
+      for (const file of body) await writeFile(file);
+
+      // Redirect since the test webpage uses forms, not JS
+      set.headers["Location"] = "/";
+      return status(HttpStatus.Found, undefined);
+    },
+  );
+
+Bun.serve({
+  routes: {
+    "/": testPage,
+    "/**": app.build(),
+  },
+});
