Full final production #6

Merged
nspackman merged 3 commits from v2 into main 2025-12-04 14:39:02 -08:00
21 changed files with 2532 additions and 81535 deletions
Showing only changes of commit a709c80f38 - Show all commits

1
.gitignore vendored
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/node_modules /node_modules
/traxer_api/.codeedit /traxer_api/.codeedit
.DS_Store

49
Dockerfile Normal file
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# ---- Builder Stage ----
# Use official Node.js 20 (Alpine)
FROM node:20-alpine AS builder
# Install init system
RUN apk add --no-cache dumb-init
# App dir
WORKDIR /app
# Copy package files
COPY package*.json ./
# Install production deps
RUN npm ci --only=production && npm cache clean --force
# ---- Final Stage ----
FROM node:20-alpine
LABEL maintainer="your-email@example.com"
LABEL org.opencontainers.image.source="https://github.com/yourname/uta-gtfs-mysql"
# Install dumb-init + MySQL client (optional but common)
RUN apk add --no-cache dumb-init mysql-client
# Create non-root user
RUN addgroup -g 1001 -S nodejs \
&& adduser -S utauser -u 1001
WORKDIR /app
# Copy node_modules from builder
COPY --from=builder /app/node_modules ./node_modules
# Copy app source
COPY . .
RUN chown -R utauser:nodejs /app
USER utauser
# Healthcheck you may want to change port if needed
HEALTHCHECK --interval=30s --timeout=3s --start-period=60s --retries=3 \
CMD wget -qO- http://localhost:3000/ || exit 1
EXPOSE 3000
ENTRYPOINT ["dumb-init", "--"]
CMD ["node", "server.js"]

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22
app.js
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import express from "express";
import cors from "cors";
import vehiclesRouter from "./src/routes/vehicles.js";
import routesRouter from "./src/routes/routes.js";
const app = express();
app.use(cors());
app.use(express.json());
const base = "/api/v0";
app.get(`${base}/`, (req, res) => {
res.json({status: "ok", version: "v0", ts: new Date().toISOString()});
});
app.use(`${base}/vehicles`, vehiclesRouter);
app.use(base, routesRouter);
app.get("/", (req, res) => res.redirect(`${base}/`));
export default app;

45
docker-compose.yaml Normal file
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version: '3.9'
services:
uta-mysql:
image: mysql:8.0
container_name: uta-mysql
restart: unless-stopped
environment:
MYSQL_ROOT_PASSWORD: uta123
MYSQL_DATABASE: uta
MYSQL_USER: uta
MYSQL_PASSWORD: uta123
command: --default-authentication-plugin=mysql_native_password
volumes:
- mysql_data:/var/lib/mysql
- ./init-db.sql:/docker-entrypoint-initdb.d/init-db.sql:ro
ports:
- "3306:3306"
healthcheck:
test: ["CMD", "mysqladmin", "ping", "-h", "localhost", "-puta", "--password=uta123"]
interval: 10s
timeout: 5s
retries: 5
uta-sync:
build: .
container_name: uta-sync
ports:
- "1001:1001"
restart: unless-stopped
environment:
- DATABASE_URL=mysql://uta:uta123@uta-mysql:3306/uta
- HEALTH_PORT=3000
- NODE_ENV=production
depends_on:
uta-mysql:
condition: service_healthy
healthcheck:
test: ["CMD", "wget", "--spider", "http://localhost:3000/health"]
interval: 30s
timeout: 15s
retries: 3
volumes:
mysql_data:

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init-db.sql Normal file
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CREATE TABLE routes (
route_id VARCHAR(50) PRIMARY KEY,
agency_id VARCHAR(50),
route_short_name VARCHAR(50),
route_long_name VARCHAR(255),
route_desc TEXT,
route_type INT,
route_url VARCHAR(255),
route_color VARCHAR(10),
route_text_color VARCHAR(10)
);
CREATE TABLE trips (
trip_id VARCHAR(50) PRIMARY KEY,
route_id VARCHAR(50),
service_id VARCHAR(50),
shape_id VARCHAR(50),
trip_headsign VARCHAR(255),
trip_short_name VARCHAR(50),
direction_id INT,
block_id VARCHAR(50),
wheelchair_accessible INT,
bikes_allowed INT,
FOREIGN KEY (route_id) REFERENCES routes(route_id)
);
CREATE TABLE stops (
stop_id VARCHAR(50) PRIMARY KEY,
stop_code VARCHAR(50),
stop_name VARCHAR(255),
stop_desc TEXT,
stop_lat DOUBLE,
stop_lon DOUBLE,
zone_id VARCHAR(50),
stop_url VARCHAR(255),
location_type INT DEFAULT NULL,
parent_station VARCHAR(50),
stop_timezone VARCHAR(50),
wheelchair_boarding INT DEFAULT NULL
);
CREATE TABLE stop_times (
trip_id VARCHAR(50),
arrival_time VARCHAR(20),
departure_time VARCHAR(20),
stop_id VARCHAR(50),
stop_sequence INT,
stop_headsign VARCHAR(255),
pickup_type INT,
drop_off_type INT,
shape_dist_traveled DOUBLE NOT NULL DEFAULT 0
timepoint INT,
PRIMARY KEY (trip_id, stop_id, stop_sequence),
FOREIGN KEY (trip_id) REFERENCES trips(trip_id),
FOREIGN KEY (stop_id) REFERENCES stops(stop_id)
);
CREATE TABLE shapes (
shape_id VARCHAR(50),
shape_pt_lat DOUBLE,
shape_pt_lon DOUBLE,
shape_pt_sequence INT,
shape_dist_traveled DOUBLE,
PRIMARY KEY (shape_id, shape_pt_sequence)
);
-- Realtime: vehicle positions
CREATE TABLE rt_vehicle_positions (
vehicle_id VARCHAR(50),
trip_id VARCHAR(50),
route_id VARCHAR(50),
lat DOUBLE,
lon DOUBLE,
bearing INT,
speed DOUBLE,
timestamp BIGINT,
PRIMARY KEY (vehicle_id)
);
-- Realtime: trip updates
CREATE TABLE rt_trip_updates (
trip_id VARCHAR(50),
stop_id VARCHAR(50),
arrival_time BIGINT,
departure_time BIGINT,
delay INT,
schedule_relationship VARCHAR(20),
PRIMARY KEY (trip_id, stop_id),
FOREIGN KEY (stop_id) REFERENCES stops(stop_id)
);
-- Realtime: alerts
CREATE TABLE rt_alerts (
alert_id VARCHAR(50) PRIMARY KEY,
header TEXT,
description TEXT,
cause VARCHAR(50),
effect VARCHAR(50),
timestamp BIGINT
);

1484
package-lock.json generated

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{ {
"name": "project", "name": "traxer2",
"version": "1.0.0", "version": "1.0.0",
"description": "", "description": "",
"main": "app.js", "main": "index.js",
"scripts": { "scripts": {
"test": "echo \"Error: no test specified\" && exit 1", "test": "echo \"Error: no test specified\" && exit 1"
"start": "node start.js"
},
"repository": {
"type": "git",
"url": "https://git.nathanspackman.com/PRO150-Group/Project"
}, },
"keywords": [], "keywords": [],
"author": "", "author": "",
"license": "ISC", "license": "ISC",
"type": "module", "type": "commonjs",
"dependencies": { "dependencies": {
"cors": "^2.8.5", "cors": "^2.8.5",
"express": "^5.1.0" "csv-parse": "^6.1.0",
"express": "^5.2.1",
"gtfs-realtime-bindings": "^1.1.1",
"mysql2": "^3.15.3",
"node-fetch": "^3.3.2",
"parse": "^7.1.2",
"pg": "^8.16.3",
"unzipper": "^0.12.3"
} }
} }

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<!DOCTYPE html> <!DOCTYPE html>
<html lang="en"> <html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Traxer</title>
<script src="https://cdn.tailwindcss.com"></script>
<link
rel="stylesheet"
href="https://unpkg.com/leaflet@1.9.4/dist/leaflet.css"
crossorigin=""
/>
<script
src="https://unpkg.com/leaflet@1.9.4/dist/leaflet.js"
crossorigin=""
></script>
</head>
<body>
<div id="map" class="w-full h-screen"></div>
</body>
<script src="app.js"></script>
</html> <head>
<meta charset="UTF-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<title>Traxer</title>
<link rel="stylesheet" href="https://unpkg.com/leaflet@1.9.4/dist/leaflet.css" />
<link rel="stylesheet" href="style.css" />
</head>
<body>
<div id="map"></div>
<div
style="position:absolute; top:10px; right:10px; z-index:1000; background:white; padding:8px; border-radius:4px; box-shadow:0 0 10px rgba(0,0,0,0.3);">
<button id="toggleStops">Hide Stops</button>
</div>
<div class="controls">
<select id="routeSelect">
<option value="">All Trains & Buses</option>
<option value="701">Blue Line (701)</option>
<option value="703">Red Line (703)</option>
<option value="704">Green Line (704)</option>
<option value="720">S-Line (720)</option>
<option value="750">FrontRunner (750)</option>
</select>
<button id="refresh">Refresh Now</button>
<span class="status" id="status">Loading...</span>
</div>
<div id="vehicleSchedule" style="margin-top: 20px;">
</div>
<script src="https://unpkg.com/leaflet@1.9.4/dist/leaflet.js"></script>
<script src="index.js"> </script>
</body>
</html>

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public/index.js Normal file
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const map = L.map("map").setView([40.7608, -111.8910], 12);
L.tileLayer("https://{s}.tile.openstreetmap.org/{z}/{x}/{y}.png", {
attribution: '© OpenStreetMap contributors'
}).addTo(map);
const trainIcon = L.divIcon({
html: '🚂',
className: "train-icon",
iconSize: [30, 30],
iconAnchor: [15, 15]
});
const busIcon = L.divIcon({
html: '🚌',
className: "train-icon",
iconSize: [28, 28],
iconAnchor: [14, 14]
});
const vehicleMarkers = L.layerGroup().addTo(map);
const routeShapes = L.layerGroup().addTo(map);
const stopMarkers = L.layerGroup().addTo(map);
const API = "http://localhost:1001/api";
const vehicleMarkersMap = {};
let stopsVisible = true;
let currentRoute = "";
async function loadStops(routeId = null) {
stopMarkers.clearLayers();
if (!stopsVisible) return;
try {
let url = `${API}/stop`;
if (routeId) url = `${API}/stop/${routeId}`;
const res = await fetch(url);
const stops = await res.json();
stops.forEach(stop => {
if (!stop.stop_lat || !stop.stop_lon) return;
const wheelchair = (stop.wheelchair_boarding === "1" || stop.wheelchair_boarding === 1) ? " ♿" : "";
const marker = L.circleMarker([stop.stop_lat, stop.stop_lon], {
radius: 6,
color: "#0077ff",
fillColor: "#0077ff",
fillOpacity: 0.8
})
.bindPopup(`<b>${stop.stop_name}${wheelchair}</b><br>ID: ${stop.stop_desc || stop.stop_id}`)
.addTo(stopMarkers);
marker.on('click', () => showStopSchedule(stop.stop_id, stop.stop_name));
});
} catch (err) {
console.error("Error loading stops:", err);
}
}
document.getElementById("toggleStops").addEventListener("click", () => {
stopsVisible = !stopsVisible;
if (stopsVisible) {
document.getElementById("toggleStops").textContent = "Hide Stops";
// Reload current stops (all or just the selected route)
if (currentRoute === "") {
loadStops();
} else {
loadStops(currentRoute);
}
} else {
document.getElementById("toggleStops").textContent = "Show Stops";
stopMarkers.clearLayers();
}
});
async function showStopSchedule(stopId, stopName) {
const scheduleDiv = document.getElementById("vehicleSchedule");
scheduleDiv.innerHTML = "Loading stop schedule...";
try {
const res = await fetch(`${API}/schedule/?station=${stopId}`);
const data = await res.json();
if (!data || data.length === 0) {
scheduleDiv.innerHTML = `<p>No upcoming arrivals for <strong>${stopName}</strong></p>`;
return;
}
const now = new Date();
const today = new Date(now.getFullYear(), now.getMonth(), now.getDate()); // midnight today
// Process and filter valid arrivals
const upcoming = data
.map(item => {
const arrivalRaw = item.stopTime?.arrival_time?.trim();
if (!arrivalRaw || !item.trip || !item.route) return null; // skip invalid
let [hours, minutes, seconds] = arrivalRaw.split(":").map(Number);
let arrivalDate = new Date(today);
if (hours >= 24) {
hours -= 24;
arrivalDate.setDate(arrivalDate.getDate() + 1);
}
arrivalDate.setHours(hours, minutes, seconds, 0);
return { ...item, arrivalDate };
})
.filter(item => item && item.arrivalDate > now) // remove past or invalid
.sort((a, b) => a.arrivalDate - b.arrivalDate);
// Deduplicate by trip_id + arrival_time
const seen = new Set();
const uniqueUpcoming = upcoming.filter(item => {
const key = `${item.trip.trip_id}_${item.arrivalDate.getTime()}`;
if (seen.has(key)) return false;
seen.add(key);
return true;
});
if (uniqueUpcoming.length === 0) {
scheduleDiv.innerHTML = `<p>No upcoming arrivals for <strong>${stopName}</strong></p>`;
return;
}
// Build table
let html = `<h3>Upcoming at ${stopName}</h3>`;
html += `<table style="width:100%; border-collapse:collapse; font-size:0.95em;">
<thead style="background:#333; color:white;">
<tr>
<th style="padding:8px;">Route</th>
<th style="padding:8px;">Destination</th>
<th style="padding:8px;">Arrival</th>
</tr>
</thead>
<tbody>`;
uniqueUpcoming.forEach(item => {
const { stopTime, trip, route, arrivalDate } = item;
const routeNum = route?.route_short_name || route?.route_id || "—";
const headsign = trip?.trip_headsign || "—";
const minutesUntil = Math.round((arrivalDate - now) / 60000);
const displayTime = arrivalDate.toLocaleTimeString([], { hour: '2-digit', minute: '2-digit' });
const timeDisplay = minutesUntil <= 30
? `<strong style="color:#d00;">${displayTime} (${minutesUntil === 0 ? "Due" : minutesUntil + " min"})</strong>`
: displayTime;
const rowColor = route?.route_color && route.route_color !== "000000"
? `#${route.route_color}`
: "#666";
html += `<tr style="border-bottom:1px solid #ddd;">
<td style="padding:6px; text-align:center; background:${rowColor}; color:${getContrastColor(rowColor)}; font-weight:bold;">
${routeNum}
</td>
<td style="padding:6px;">${headsign}</td>
<td style="padding:6px; text-align:center;">${timeDisplay}</td>
</tr>`;
});
html += `</tbody></table>`;
html += `<small style="color:#666; display:block; margin-top:8px;">
Updated ${now.toLocaleTimeString()}
</small>`;
scheduleDiv.innerHTML = html;
} catch (err) {
console.error("Error fetching stop schedule:", err);
scheduleDiv.innerHTML = "<p>Error loading schedule.</p>";
}
}
function getContrastColor(hex) {
if (!hex || hex.length < 6) return "#ffffff";
const r = parseInt(hex.substr(0, 2), 16);
const g = parseInt(hex.substr(2, 2), 16);
const b = parseInt(hex.substr(4, 2), 16);
const luminance = (0.299 * r + 0.587 * g + 0.114 * b) / 255;
return luminance > 0.5 ? "#000000" : "#ffffff";
}
async function updateVehicles() {
document.getElementById("status").textContent = "Updating...";
try {
let trains = [];
let buses = [];
if (!currentRoute || ["701", "703", "704", "720", "750"].includes(currentRoute)) {
const trainRes = currentRoute
? await fetch(`${API}/train/${currentRoute}`)
: await fetch(`${API}/train`);
trains = await trainRes.json();
}
if (!currentRoute) {
const busRes = await fetch(`${API}/bus`);
buses = await busRes.json();
}
const allVehicles = [...trains, ...buses];
const seenVehicleIds = new Set();
allVehicles.forEach(item => {
const v = item.vehicle;
if (!v?.position?.latitude) return;
const id = v.vehicle.id;
seenVehicleIds.add(id);
const lat = v.position.latitude;
const lon = v.position.longitude;
const route = item.route?.route_short_name || "???";
const isTrain = trains.includes(item);
const icon = isTrain ? trainIcon : busIcon;
const speed = v.position.speed ? (v.position.speed * 2.237).toFixed(0) + " mph" : "Stopped";
const popup = `
<b>${item.route?.route_long_name || route + " Service"}</b><br/>
Vehicle ID: ${id}<br/>
Route: ${route}<br/>
Speed: ${speed}<br/>
Updated: ${new Date(v.timestamp * 1000).toLocaleTimeString()}
`;
if (vehicleMarkersMap[id]) {
vehicleMarkersMap[id].setLatLng([lat, lon]);
vehicleMarkersMap[id].setPopupContent(popup);
} else {
const marker = L.marker([lat, lon], {
icon: icon,
rotationAngle: v.position.bearing || 0
}).bindPopup(popup)
.addTo(vehicleMarkers);
vehicleMarkersMap[id] = marker;
}
});
Object.keys(vehicleMarkersMap).forEach(id => {
if (!seenVehicleIds.has(id)) {
vehicleMarkers.removeLayer(vehicleMarkersMap[id]);
delete vehicleMarkersMap[id];
}
});
document.getElementById("status").textContent = `${allVehicles.length} vehicles • ${new Date().toLocaleTimeString()}`;
} catch (err) {
console.error("Update failed:", err);
document.getElementById("status").textContent = "Error";
}
}
async function loadRouteShape(routeId) {
if (!routeId) {
routeShapes.clearLayers();
return;
}
try {
const res = await fetch(`${API}/shape/${routeId}`);
const shapes = await res.json();
routeShapes.clearLayers();
const res2 = await fetch(`${API}/routes`);
const routes = await res2.json();
const route = routes.filter(r => r.route_short_name == routeId);
console.log(route[0])
const routeHexColor = `#${route[0].route_color}`;
shapes.forEach(shape => {
const points = shape.points.map(p => [p.lat, p.lon]);
L.polyline(points, { color: routeHexColor, weight: 5, opacity: 0.7 }).addTo(routeShapes);
});
if (shapes.length > 0) {
const bounds = L.latLngBounds(shapes[0].points.map(p => [p.lat, p.lon]));
map.fitBounds(bounds, { padding: [50, 50] });
}
} catch (e) { console.error("Shape load error:", e); }
}
document.getElementById("routeSelect").addEventListener("change", async (e) => {
currentRoute = e.target.value;
console.log(currentRoute == "")
if (currentRoute === "") {
loadAllRoutes();
loadStops();
}
else {
loadRouteShape(currentRoute);
loadStops(currentRoute);
}
updateVehicles();
});
function delay(ms) {
return new Promise(resolve => setTimeout(resolve, ms));
}
document.getElementById("refresh").addEventListener("click", updateVehicles);
async function loadAllRoutes() {
try {
const res = await fetch(`${API}/routes`);
const routes = await res.json();
routeShapes.clearLayers();
for (const route of routes) {
const routeId = route.route_short_name;
const routeHexColor = route.route_color ? `#${route.route_color}` : "#888";
const shapeRes = await fetch(`${API}/shape/${routeId}`);
const shapes = await shapeRes.json();
shapes.forEach(shape => {
const points = shape.points.map(p => [p.lat, p.lon]);
L.polyline(points, {
color: routeHexColor,
weight: 4,
opacity: 0.6
}).addTo(routeShapes);
});
//await delay(200);
}
const allPoints = [];
routeShapes.eachLayer(layer => {
allPoints.push(...layer.getLatLngs());
});
} catch (e) {
console.error("Error loading all routes:", e);
}
}
async function showVehicleSchedule(vehicleId) {
const scheduleDiv = document.getElementById("vehicleSchedule");
scheduleDiv.innerHTML = "Loading schedule...";
try {
const res = await fetch(`${API}/schedule/?vehicle=${vehicleId}`);
const schedule = await res.json();
if (!schedule.length) {
scheduleDiv.innerHTML = "<p>No schedule available.</p>";
return;
}
let html = `
<h3>Schedule for Vehicle ${vehicleId}</h3>
<table border="1" cellpadding="5" cellspacing="0">
<thead>
<tr>
<th>Stop</th>
<th>Arrival Time</th>
</tr>
</thead>
<tbody>
`;
schedule.forEach(stop => {
const time = new Date(stop.arrival_time * 1000).toLocaleTimeString();
html += `<tr><td>${stop.stop_name}</td><td>${time}</td></tr>`;
});
html += `</tbody></table>`;
scheduleDiv.innerHTML = html;
} catch (err) {
console.error("Error fetching schedule:", err);
scheduleDiv.innerHTML = "<p>Error loading schedule.</p>";
}
}
loadAllRoutes()
.then(() => loadStops())
.then(() => {
updateVehicles();
setInterval(updateVehicles, 10000); // Update every 10 seconds
})
.catch(err => {
console.error("Init failed:", err);
document.getElementById("status").textContent = "Failed to initialize";
});

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body {
margin: 0;
font-family: system-ui, sans-serif;
}
#map {
width: 100vw;
height: 80vh;
}
.controls {
position: absolute;
top: 10px;
left: 50%;
transform: translateX(-50%);
background: rgba(255, 255, 255, 0.95);
padding: 12px 20px;
border-radius: 12px;
box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
z-index: 1000;
text-align: center;
display: flex;
gap: 12px;
align-items: center;
flex-wrap: wrap;
justify-content: center;
}
select,
button {
padding: 10px;
font-size: 15px;
border-radius: 8px;
border: 1px solid #ccc;
}
button {
background: #0066cc;
color: white;
border: none;
cursor: pointer;
}
button:hover {
background: #0052a3;
}
.status {
font-weight: bold;
color: #0066cc;
}
.legend {
position: absolute;
top: 10px;
right: 10px;
background: white;
padding: 12px;
border-radius: 8px;
box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
z-index: 1000;
font-size: 13px;
}

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const express = require('express')
const path = require('path');
const app = express()
const gtfsRealtime = require("./tools/gtfsData")
app.use(express.static('public'))
app.use((req, res, next) => {
res.header('Access-Control-Allow-Origin', '*'); // or 'http://127.0.0.1:1001' for security
res.header('Access-Control-Allow-Headers', 'Origin, X-Requested-With, Content-Type, Accept');
next();
});
const port = 1001
app.get('/', (req, res) => {
res.sendFile(path.join(__dirname, 'public', 'index.html'));
})
app.get('/api/', (req, res) => {
res.json({ version: "0.0.1", status: "healthy" })
})
app.get('/api/train/', async (req, res) => {
res.json(await gtfsRealtime.getTrains())
})
app.get('/api/train/:routeId', async (req, res) => {
const routeId = req.params.routeId;
res.json(await gtfsRealtime.getTrainsByRoute(routeId))
})
app.get('/api/bus/', async (req, res) => {
res.json(await gtfsRealtime.getBuses())
})
app.get('/api/bus/:routeId', async (req, res) => {
const routeId = req.params.routeId;
res.json(await gtfsRealtime.getBusesByRoute(routeId))
})
app.get('/api/alert', async (req, res) => {
res.json(await gtfsRealtime.getAlerts())
})
app.get('/api/alert/:routeId', async (req, res) => {
const routeId = req.params.routeId;
res.json(await gtfsRealtime.getAlertsByRoute(routeId))
})
app.get('/api/schedule', async (req, res) => {
const { route, station } = req.query;
try {
let result;
if (route) {
result = await gtfsRealtime.getScheduleByRoute(route);
} else if (station) {
result = await gtfsRealtime.getScheduleByStationId(station);
} else {
return res.status(400).json({ error: "Please provide route, or station query parameter" });
}
if (!result || (Array.isArray(result) && result.length === 0)) {
return res.status(404).json({ error: "No schedule found" });
}
res.json(result);
} catch (err) {
console.error(err);
res.status(500).json({ error: "Internal server error" });
}
});
app.get('/api/routes', async (req, res) => {
res.json(await gtfsRealtime.getRoutes())
})
app.get('/api/shape/:routeId', async (req, res) => {
const routeId = req.params.routeId;
res.json(await gtfsRealtime.getShapeByRoute(routeId))
})
app.get('/api/stop', async (req, res) => {
res.json(await gtfsRealtime.getStops())
})
app.get('/api/stop/:routeId', async (req, res) => {
const routeId = req.params.routeId;
res.json(await gtfsRealtime.getStopsByRoute(routeId))
})
app.listen(port, () => {
console.log(`Example app listening on port ${port}`)
})

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@@ -1,27 +0,0 @@
[
{
"route_id": "701",
"start_location": "Draper City Center",
"end_location": "Salt Lake Central"
},
{
"route_id": "703",
"start_location": "Airport Station",
"end_location": "West Valley Central Station"
},
{
"route_id": "704",
"start_location": "Daybreak Parkway Station",
"end_location": "U. Of U. Medical Center Station"
},
{
"route_id": "720",
"start_location": "Provo Central Station",
"end_location": "Ogden Station"
},
{
"route_id": "750",
"start_location": "Fairmont Station",
"end_location": "Central Pointe Station"
}
]

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@@ -1,68 +0,0 @@
[
{
"vehicleId": "1003B",
"routeNum": "701",
"routeName": "Blue Line",
"destination": "To Salt Lake Central",
"bearing": 0.3,
"location": {
"latitude": 40.67723,
"longitude": -111.8941
}
},
{
"vehicleId": "1016B",
"routeNum": "701",
"routeName": "Blue Line",
"destination": "To Draper",
"bearing": 89.9,
"location": {
"latitude": 40.76929,
"longitude": -111.9005
}
},
{
"vehicleId": "1006A",
"routeNum": "701",
"routeName": "Blue Line",
"destination": "To Salt Lake Central",
"bearing": 358.6,
"location": {
"latitude": 40.76017,
"longitude": -111.8911
}
},
{
"vehicleId": "1028A",
"routeNum": "701",
"routeName": "Blue Line",
"destination": "To Draper",
"bearing": 179.9,
"location": {
"latitude": 40.74292,
"longitude": -111.8969
}
},
{
"vehicleId": "1004A",
"routeNum": "701",
"routeName": "Blue Line",
"destination": "To Salt Lake Central",
"bearing": 349,
"location": {
"latitude": 40.57289,
"longitude": -111.8852
}
},
{
"vehicleId": "1008A",
"routeNum": "701",
"routeName": "Blue Line",
"destination": "To Draper",
"bearing": 180.6,
"location": {
"latitude": 40.65089,
"longitude": -111.8982
}
}
]

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@@ -1,48 +0,0 @@
import express from "express";
import * as dal from "../dal/staticDal.js";
const router = express.Router();
router.get("/", (req, res) => {
let vehicles = dal.getVehicles();
const {routeNum, routeName, destination, minLat, maxLat, minLng, maxLng, limit} = req.query;
if (routeNum) vehicles = vehicles.filter(v => String(v.routeNum) === String(routeNum));
if (routeName) vehicles = vehicles.filter(v => v.routeName && v.routeName.toLowerCase().includes(String(routeName).toLowerCase()));
if (destination) vehicles = vehicles.filter(v => v.destination && v.destination.toLowerCase().includes(String(destination).toLowerCase()));
if (minLat || maxLat || minLng || maxLng) {
const minLatN = parseFloat(minLat ?? -90);
const maxLatN = parseFloat(maxLat ?? 90);
const minLngN = parseFloat(minLng ?? -180);
const maxLngN = parseFloat(maxLng ?? 180);
vehicles = vehicles.filter(v => {
const lat = parseFloat(v.location?.latitude);
const lng = parseFloat(v.location?.longitude);
return lat >= minLatN && lat <= maxLatN && lng >= minLngN && lng <= maxLngN;
});
}
let returned = vehicles.length;
if (limit) {
const lim = Math.max(1, Math.min(1000, parseInt(limit, 10) || 100));
vehicles = vehicles.slice(0, lim);
returned = vehicles.length;
}
res.json({meta: {returned}, data: vehicles});
});
router.get("/:id", (req, res) => {
const v = dal.getVehicleById(req.params.id);
if (!v) return res.status(404).json({error: "Vehicle Was Not Found"});
res.json({data: v});
});
export default router;

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@@ -1,12 +0,0 @@
import express from "express";
import app from "./app.js";
const PORT = process.env.PORT || 7653;
// Serve static files from "public" folder
app.use(express.static('public'));
// Start the server
app.listen(PORT, () => {
console.log(`Transit API running at http://localhost:${PORT}`);
});

324
tools/gtfsData.js Normal file
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const GtfsRealtimeBindings = require("gtfs-realtime-bindings");
const unzipper = require("unzipper");
const parse = require("csv-parse/sync").parse;
const TRAIN_ROUTES = ["701", "703", "704", "720", "750"];
const URL = "https://apps.rideuta.com/tms/gtfs/";
const URL_ROUTES = ["Vehicle", "TripUpdate", "Alert"];
const RT_POLLING = 3000;
let gtfs_data = null;
let gtfs_rt_v = null;
let gtfs_rt_t = null;
let gtfs_rt_a = null;
let gtfs_timestamp = null;
let updatePromise = null;
async function applyTripUpdates(stopTimes, tripId) {
await updateGtfsRt();
if (!gtfs_rt_t) return stopTimes;
const tripUpdateEntity = gtfs_rt_t.entity.find(e => e.tripUpdate?.trip?.tripId === tripId);
if (!tripUpdateEntity || !tripUpdateEntity.tripUpdate) return stopTimes;
const updates = tripUpdateEntity.tripUpdate.stopTimeUpdate || [];
const updateMap = new Map();
updates.forEach(u => {
if (u.stopId) updateMap.set(u.stopId, u);
});
return stopTimes.map(st => {
const update = updateMap.get(st.stop_id);
if (!update) return { ...st };
return {
...st,
arrival: update.arrival ? {
time: update.arrival.time,
delay: update.arrival.delay
} : undefined,
departure: update.departure ? {
time: update.departure.time,
delay: update.departure.delay
} : undefined,
scheduleRelationship: update.scheduleRelationship || 'SCHEDULED'
};
});
}
async function loadGtfsStaticInMemory() {
const url = "https://apps.rideuta.com/tms/gtfs/Static";
const res = await fetch(url);
if (!res.ok) throw new Error(`Failed: ${res.status} ${res.statusText}`);
const zipBuffer = Buffer.from(await res.arrayBuffer());
const directory = await unzipper.Open.buffer(zipBuffer);
const gtfs = {};
for (const entry of directory.files) {
if (!entry.path.endsWith(".txt")) continue; // only GTFS .txt files
const fileBuffer = await entry.buffer();
const text = fileBuffer.toString("utf8");
const rows = parse(text, { columns: true, skip_empty_lines: true });
const name = entry.path.replace(".txt", "");
gtfs[name] = rows;
}
return gtfs;
}
async function getTrains() {
await updateGtfsRt();
if (!gtfs_rt_v) return [];
const trains = [];
gtfs_rt_v.entity.forEach(entity => {
if (entity.vehicle) {
const tripId = entity.vehicle.trip.tripId;
const trip = gtfs_data.trips.find(t => t.trip_id === tripId);
//const stopTimes = gtfs_data.stop_times.filter(st => st.trip_id === tripId);
let route = null;
if (trip) {
route = gtfs_data.routes.find(r => r.route_id === trip.route_id);
}
if (route && TRAIN_ROUTES.find(r => r === route.route_short_name)) {
trains.push({
vehicle: entity.vehicle,
trip,
//stopTimes,
route
});
}
}
});
return trains;
}
async function getTrainsByRoute(route) {
const trains = await getTrains();
return trains.filter(t => t.route && t.route.route_short_name === route);
}
async function getBuses() {
await updateGtfsRt();
if (!gtfs_rt_v) return [];
const buses = [];
gtfs_rt_v.entity.forEach(entity => {
if (entity.vehicle) {
const tripId = entity.vehicle.trip.tripId;
const trip = gtfs_data.trips.find(t => t.trip_id === tripId);
//const stopTimes = gtfs_data.stop_times.filter(st => st.trip_id === tripId);
let route = null;
if (trip) {
route = gtfs_data.routes.find(r => r.route_id === trip.route_id);
}
if (route && !TRAIN_ROUTES.find(r => r === route.route_short_name)) {
buses.push({
vehicle: entity.vehicle,
trip,
//stopTimes,
route
});
}
}
});
return buses;
}
async function getBusesByRoute(route) {
const buses = await getBuses();
return buses.filter(b => b.route && b.route.route_short_name === route);
}
async function updateGtfsRt() {
if (!gtfs_data) gtfs_data = await loadGtfsStaticInMemory();
const now = Date.now();
if (!gtfs_timestamp || now - gtfs_timestamp >= RT_POLLING) {
if (!updatePromise) {
updatePromise = (async () => {
gtfs_timestamp = now;
try {
[gtfs_rt_v, gtfs_rt_t, gtfs_rt_a] = await Promise.all([
loadGtfsRt("Vehicle"),
loadGtfsRt("TripUpdate"),
loadGtfsRt("Alert")
]);
} catch (e) {
console.error("Failed to update RT feeds:", e);
} finally {
updatePromise = null;
}
})();
}
await updatePromise;
}
return { gtfs_rt_v,gtfs_rt_t,gtfs_rt_a };
}
async function loadGtfsRt(feedType = URL_ROUTES[0]) {
const response = await fetch(URL + feedType);
if (!response.ok) {
throw new Error(`HTTP ${response.status}: ${response.statusText}`);
}
const buffer = new Uint8Array(await response.arrayBuffer());
return GtfsRealtimeBindings.transit_realtime.FeedMessage.decode(buffer);
}
async function getAlerts() {
await updateGtfsRt();
const alerts = [];
if (!gtfs_rt_a) return [];
const routeMap = new Map(gtfs_data.routes.map(r => [r.route_id, r]));
gtfs_rt_a.entity.forEach(entity => {
const informedEntities = entity.alert?.informedEntity || [];
const routes = informedEntities
.map(e => e.routeId)
.filter(Boolean)
.map(routeId => routeMap.get(routeId))
.filter(Boolean);
alerts.push({ alert: entity.alert, routes });
});
return alerts;
}
async function getAlertsByRoute(route) {
const alerts = await getAlerts();
return alerts.filter(a =>
a.routes && a.routes.some(r => r.route_short_name === route)
);
}
async function getScheduleByRoute(route) {
await updateGtfsRt();
const matchingRoutes = gtfs_data.routes.filter(r => r.route_short_name === route);
if (!matchingRoutes.length) return [];
const trips = gtfs_data.trips.filter(t => matchingRoutes.some(r => r.route_id === t.route_id));
const schedulePromises = trips.map(async trip => {
let stopTimes = gtfs_data.stop_times.filter(st => st.trip_id === trip.trip_id);
stopTimes = await applyTripUpdates(stopTimes, trip.trip_id);
const routeObj = matchingRoutes.find(r => r.route_id === trip.route_id);
return { trip, stopTimes, route: routeObj };
});
return await Promise.all(schedulePromises);
}
async function getScheduleByStationId(stopId) {
await updateGtfsRt();
const stopTimes = gtfs_data.stop_times.filter(st => st.stop_id === stopId);
const schedulePromises = stopTimes.map(async st => {
const trip = gtfs_data.trips.find(t => t.trip_id === st.trip_id);
const route = trip ? gtfs_data.routes.find(r => r.route_id === trip.route_id) : null;
const updatedStopTimes = await applyTripUpdates([st], st.trip_id);
return { stopTime: updatedStopTimes[0], trip, route };
});
return await Promise.all(schedulePromises);
}
async function getShapeByRoute(route) {
if (!gtfs_data) {
await loadGtfsStaticInMemory();
};
const routes = gtfs_data.routes.filter(r => r.route_short_name === route);
if (!routes.length) return [];
const shapeIds = new Set();
gtfs_data.trips.forEach(trip => {
if (routes.some(r => r.route_id === trip.route_id) && trip.shape_id) {
shapeIds.add(trip.shape_id);
}
});
const shapes = [];
shapeIds.forEach(shapeId => {
const points = gtfs_data.shapes
.filter(s => s.shape_id === shapeId)
.sort((a, b) => parseInt(a.shape_pt_sequence) - parseInt(b.shape_pt_sequence))
.map(s => ({ lat: parseFloat(s.shape_pt_lat), lon: parseFloat(s.shape_pt_lon) }));
shapes.push({ shapeId, points });
});
return shapes;
}
async function getRoutes() {
if (!gtfs_data) {
gtfs_data = await loadGtfsStaticInMemory();
}
return gtfs_data.routes || [];
}
async function getStops() {
if (!gtfs_data) {
gtfs_data = await loadGtfsStaticInMemory();
}
return gtfs_data.stops || [];
}
async function getStopsByRoute(route) {
if (!gtfs_data) {
gtfs_data = await loadGtfsStaticInMemory();
}
const matchingRoutes = gtfs_data.routes.filter(r => r.route_short_name === route);
if (!matchingRoutes.length) return [];
const trips = gtfs_data.trips.filter(t => matchingRoutes.some(r => r.route_id === t.route_id));
const stopIds = new Set(
gtfs_data.stop_times
.filter(st => trips.some(trip => trip.trip_id === st.trip_id))
.map(st => st.stop_id)
);
return gtfs_data.stops.filter(s => stopIds.has(s.stop_id));
}
setInterval(async () => {
console.log("Refreshing static GTFS...");
gtfs_data = await loadGtfsStaticInMemory();
}, 24 * 60 * 60 * 1000);
module.exports = {
getStops,
getStopsByRoute,
getRoutes,
getTrains,
getBuses,
getTrainsByRoute,
getBusesByRoute,
getAlerts,
getAlertsByRoute,
getScheduleByRoute,
getScheduleByStationId,
getShapeByRoute,
updateGtfsRt,
loadGtfsStaticInMemory,
gtfs_rt_v,
gtfs_rt_t,
gtfs_rt_a,
}

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