Support sequence URLs

controllers/sequence.mjs

@@ -0,0 +1,26 @@
+'use strict';
+
+import Manifest from '../src/Manifest.js';
+import Common from '../src/common.js';
+
+/**
+ * Generate a sequence object to serve
+ * @param {string} manifestId 
+ * @param {string | int} name 
+ */
+export default async function generateSequence(manifestId, name) {
+	const IIIF_API_VERSION = process.env.IIIF_API_VERSION;
+	const BASE_URL = process.env.BASE_URL;
+
+	let manifest = new Manifest(IIIF_API_VERSION, BASE_URL);
+	manifest.generateID(manifestId);
+	
+	manifest = await Common.populateCanvases(
+		manifest, 
+		await Common.getImageList(manifestId), 
+		manifestId
+	);
+
+    return manifest.toObject().sequences[name];
+}
+