How to serve json file using ORPC

[Hugo-Persson]

I am trying to create an endpoint to download a JSON file. I have the following code

import { z } from "zod";
import { parseDateRangeString } from "../date-utils";
import { getJsonData } from "../exporter";
import { researcherOS } from "../helpers";

export const getStudyManifest = researcherOS
	.route({
		method: "GET",
		summary: "Get study export manifest",
		description:
			"Returns a downloadable manifest for a study over an optional date range",
	})
	.handler(async ({ input, context }) => {


		const data = await getJsonData(); // Returns a JS object 
		const file = new File([JSON.stringify([data])], "manifest.json", {
			type: "application/json",
		});

		return {
			file,
		};
	});

When I run this I get a file with the name getStudyManifest with data like

------formdata-undici-036892310657
Content-Disposition: form-data; name="file"; filename="manifest.json"
Content-Type: application/json

[<my data>]
------formdata-undici-036892310657--

How can I make it download a file manifest.json with json data?

[unnoq]

This is expected, because you wrap inside an object. Let's try return file directly:

return file;

[Hugo-Persson]

Thank you! This works!

Maybe these docs should be updated a bit? In the docs they return file inside object which I followed.
https://orpc.unnoq.com/docs/file-upload-download