Add setup instructions

README.md

@@ -1,3 +1,20 @@
 # vistassh-py
 
 Python-based web interface for VistA roll-and-scroll terminal
+
+## Getting started
+
+You will need:
+- Python 3.10+ & pip
+- Node.js & npm
+
+To install the dependencies and build the frontend, perform the following steps:
+
+```bash
+pip install -r requirements.txt
+cd frontend
+npm install
+npm run build
+```
+
+To run, invoke `main.py`.

frontend/src/lib/backend.js

@@ -1,7 +1,8 @@
 export async function get_api_appointments({ fetch, clinics = [], date = 'T' } = {}) {
 	if(clinics.constructor === Array) clinics = clinics.map(x => x.replace(/^\s+|\s+$/g, '').replace(/\s+/, ' ')).filter(x => x).join('^').replace(/\//g, '|');
 	else clinics = clinics.replace(/^\s+|\s+$/g, '').replace(/\s+/, ' ').replace(/\//g, '|');
-	return await (await (fetch || window.fetch)('/api/appointments/' + clinics + '/' + date)).json();
+	if(clinics) return await (await (fetch || window.fetch)('/api/appointments/' + clinics + '/' + date)).json();
+	else return [];
 }
 
 export async function get_api_lookup({ fetch, query, ordinal, force = false } = {}) {

frontend/src/routes/appointments/+page.js

@@ -2,7 +2,12 @@ import { get_api_appointments } from '$lib/backend.js';
 
 /** @type {import('./$types').PageLoad} */
 export async function load({ params, fetch }) {
-	let clinics = await (await fetch('/api/config/user/clinics')).json();
+	let clinics = [];
+	try {
+		clinics = await (await fetch('/api/config/user/clinics')).json();
+	} catch(ex) {
+		console.error(ex, ex.stack);
+	}
 	let appointments = await get_api_appointments({ fetch, clinics, date: 'T' });
 	appointments.sort((a, b) => a.time_scheduled < b.time_scheduled ? -1 : a.time_scheduled > b.time_scheduled ? 1 : 0);
 	return {