Added controller for calling POST request function for media items.

src/webserver/controllers/plex/submitRequest.js

@@ -0,0 +1,24 @@
+const RequestRepository = require('src/plex/requestRepository.js');
+const requestRepository = new RequestRepository();
+
+/**
+ * Controller: POST a media id to be donwloaded
+ * @param {Request} req http request variable
+ * @param {Response} res
+ * @returns {Callback}
+ */
+
+function submitRequestController(req, res) {
+	// This is the id that is the param of the url
+	const id = req.params.mediaId;
+
+	requestRepository.sendRequest(id)
+	.then(() => {
+		res.send({ success: true, message: 'Media item sucessfully requested!' });
+	})
+	.catch((error) => {
+		res.status(500).send({ success: false, error: error.message });
+	});
+}
+
+module.exports = submitRequestController;