passkit-generator/examples/additionalBuffers.ts

/**
 * Example for adding additional buffers to the
 * model. These buffers, represent contents that
 * get fetched in runtime and that may vary
 * at any time, for any reason.
 * For the example purposes, we are using a static URL.
 */

import app from "./webserver";
import fetch from "node-fetch";
import { createPass } from "passkit-generator";
import path from "path";

app.all(async function manageRequest(request, response) {
	let passName =
		request.params.modelName +
		"_" +
		new Date().toISOString().split("T")[0].replace(/-/gi, "");

	const avatar = await fetch(
		"https://s.gravatar.com/avatar/83cd11399b7ea79977bc302f3931ee52?size=32&default=retro",
	).then((res) => res.buffer());

	const passConfig = {
		model: path.resolve(__dirname, `../models/${request.params.modelName}`),
		certificates: {
			wwdr: path.resolve(__dirname, "../../certificates/WWDR.pem"),
			signerCert: path.resolve(
				__dirname,
				"../../certificates/signerCert.pem",
			),
			signerKey: {
				keyFile: path.resolve(
					__dirname,
					"../../certificates/signerKey.pem",
				),
				passphrase: "123456",
			},
		},
		overrides: request.body || request.params || request.query,
	};

	const additionalBuffers = {
		"thumbnail@2x.png": avatar,
		// If we are using L10N folders, we can set the content like this
		"en.lproj/thumbnail@2x.png": avatar,
	};

	try {
		const pass = await createPass(passConfig, additionalBuffers);

		const stream = pass.generate();

		response.set({
			"Content-type": "application/vnd.apple.pkpass",
			"Content-disposition": `attachment; filename=${passName}.pkpass`,
		});

		stream.pipe(response);
	} catch (err) {
		console.log(err);

		response.set({
			"Content-type": "text/html",
		});

		response.send(err.message);
	}
});