Added additionalBuffers example

examples/additionalBuffers.ts

@@ -0,0 +1,60 @@
+/**
+ * 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 "..";
+
+app.all(async function manageRequest(request, response) {
+	let passName = request.params.modelName + "_" + (new Date()).toISOString().split('T')[0].replace(/-/ig, "");
+
+	const avatar = await (
+		fetch("https://s.gravatar.com/avatar/83cd11399b7ea79977bc302f3931ee52?size=32&default=retro")
+		.then(res => res.buffer())
+	);
+
+	const passConfig = {
+		model: `./models/${request.params.modelName}`,
+		certificates: {
+			wwdr: "../certificates/WWDR.pem",
+			signerCert: "../certificates/signerCert.pem",
+			signerKey: {
+				keyFile: "../certificates/signerKey.pem",
+				passphrase: "123456"
+			}
+		},
+		overrides: request.body || request.params || request.query,
+	};
+
+	const additionalBuffers = {
+		"thumbnail@2x.png": avatar,
+		// If we are using L10N folders, we can set the content like this
+		"en.lproj/thumbnail@2x.png": avatar,
+	};
+
+	try {
+		const pass = await createPass(passConfig, additionalBuffers);
+
+		const stream = pass.generate();
+
+		response.set({
+			"Content-type": "application/vnd.apple.pkpass",
+			"Content-disposition": `attachment; filename=${passName}.pkpass`
+		});
+
+		stream.pipe(response);
+	} catch (err) {
+		console.log(err);
+
+		response.set({
+			"Content-type": "text/html",
+		});
+
+		response.send(err.message);
+	}
+});