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CSUP-582: Add uploader to Tanstack #2

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CSUP-582: Add uploader to Tanstack #2

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2 changes: 2 additions & 0 deletions examples/tanstack/.gitignore
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Original file line number Diff line number Diff line change
Expand Up @@ -32,3 +32,5 @@ report.[0-9]_.[0-9]_.[0-9]_.[0-9]_.json

# Finder (MacOS) folder config
.DS_Store

tmp
54 changes: 31 additions & 23 deletions examples/tanstack/app/routes/index.tsx
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Original file line number Diff line number Diff line change
@@ -1,12 +1,13 @@
import * as fs from "node:fs";
import * as path from "node:path";
import { createFileRoute, useRouter } from "@tanstack/react-router";
import { createServerFn } from "@tanstack/react-start";

const filePath = "count.txt";
const countFilePath = "count.txt";

async function readCount() {
return parseInt(
await fs.promises.readFile(filePath, "utf-8").catch(() => "0")
await fs.promises.readFile(countFilePath, "utf-8").catch(() => "0")
);
}

Expand All @@ -16,16 +17,36 @@ const getCount = createServerFn({
return readCount();
});

// Used to post a file input to the server
const postFile = createServerFn({
method: "POST",
})
.validator((data: FormData) => {
const file = data.get("file");
if (!(file instanceof File)) {
throw new Error("Expected a file input");
}
return file;
})
.handler(async ({ data }) => {
const file = data;
const content = await file.text();
const filePath = path.join(import.meta.dirname, "..", "..", "tmp", file.name);

await fs.promises.mkdir(path.dirname(filePath), { recursive: true });
await fs.promises.writeFile(filePath, content);
});

const updateCount = createServerFn({ method: "POST" })
.validator((d: number) => d)
.handler(async ({ data }) => {
const count = await readCount();
await fs.promises.writeFile(filePath, `${count + data}`);
await fs.promises.writeFile(countFilePath, `${count + data}`);
});

// n.b. we can't create a `DELETE` server fn
const resetCount = createServerFn({ method: "POST" }).handler(async () => {
await fs.promises.writeFile(filePath, "0");
await fs.promises.writeFile(countFilePath, "0");
});

export const Route = createFileRoute("/")({
Expand Down Expand Up @@ -66,29 +87,16 @@ function Home() {
</li>
<li>
<form
onSubmit={(e) => {
e.preventDefault();
const form = e.currentTarget as HTMLFormElement;
const formData = new FormData(form);
const recordingId = formData.get("recording-id") as string;

const url = new URL(window.location.href);
url.searchParams.delete("jam-recording");
url.searchParams.set("jam-recording", recordingId);

window.history.replaceState({}, "", url.toString());
window.location.reload();
onSubmit={async (event) => {
event.preventDefault();
await postFile({ data: new FormData(event.currentTarget) });
}}
>
<label>
Recording ID:
<input
name="recording-id"
type="text"
placeholder="Create me at Jam.dev"
/>
Upload a file:
<input type="file" name="file" />
</label>
<button type="submit">Open</button>
<button type="submit">Upload</button>
</form>
</li>
</ul>
Expand Down