Merge branch 'backend' of https://git.nathanspackman.com/PRO150-Group/Project into backend

revert Postgres DAL

.gitea/workflows/deploy.yaml

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+name: Deploy Express API
+
+on:
+  push:
+    branches:
+      - backend
+      - main
+
+jobs:
+  deploy:
+    runs-on: linux_amd64
+
+    steps:
+      # Checkout code
+      - uses: actions/checkout@v3
+
+      # Pull latest code
+      - name: Pull latest code
+        run: |
+          cd /var/www/myapp/Project
+          git reset --hard
+          git pull origin main
+
+      # Install dependencies
+      - name: Install dependencies
+        run: |
+          cd /var/www/myapp/Project
+          npm install
+
+      # Kill existing process (optional)
+      - name: Stop previous instance
+        run: |
+          pkill -f "node .*app.js" || true
+          pkill -f "node .*start.js" || true
+
+      # Start app in background
+      - name: Start app
+        run: |
+          cd /var/www/myapp/Project
+          nohup npm start > app.log 2>&1 &
+

.gitignore

@@ -0,0 +1,2 @@
+/node_modules
+/traxer_api/.codeedit

README.md

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 # Project
 
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app.js

@@ -0,0 +1,22 @@
+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;

package-lock.json

@@ -0,0 +1,846 @@
+{
+  "name": "project",
+  "version": "1.0.0",
+  "lockfileVersion": 3,
+  "requires": true,
+  "packages": {
+    "": {
+      "name": "project",
+      "version": "1.0.0",
+      "license": "ISC",
+      "dependencies": {
+        "cors": "^2.8.5",
+        "express": "^5.1.0"
+      }
+    },
+    "node_modules/accepts": {
+      "version": "2.0.0",
+      "resolved": "https://registry.npmjs.org/accepts/-/accepts-2.0.0.tgz",
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+      "license": "MIT",
+      "dependencies": {
+        "mime-types": "^3.0.0",
+        "negotiator": "^1.0.0"
+      },
+      "engines": {
+        "node": ">= 0.6"
+      }
+    },
+    "node_modules/body-parser": {
+      "version": "2.2.0",
+      "resolved": "https://registry.npmjs.org/body-parser/-/body-parser-2.2.0.tgz",
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+        "content-type": "^1.0.5",
+        "debug": "^4.4.0",
+        "http-errors": "^2.0.0",
+        "iconv-lite": "^0.6.3",
+        "on-finished": "^2.4.1",
+        "qs": "^6.14.0",
+        "raw-body": "^3.0.0",
+        "type-is": "^2.0.0"
+      },
+      "engines": {
+        "node": ">=18"
+      }
+    },
+    "node_modules/bytes": {
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package.json

@@ -0,0 +1,22 @@
+{
+  "name": "project",
+  "version": "1.0.0",
+  "description": "",
+  "main": "app.js",
+  "scripts": {
+    "test": "echo \"Error: no test specified\" && exit 1",
+    "start": "node start.js"
+  },
+  "repository": {
+    "type": "git",
+    "url": "https://git.nathanspackman.com/PRO150-Group/Project"
+  },
+  "keywords": [],
+  "author": "",
+  "license": "ISC",
+  "type": "module",
+  "dependencies": {
+    "cors": "^2.8.5",
+    "express": "^5.1.0"
+  }
+}

public/app.js

@@ -0,0 +1,208 @@
+
+var streets = L.tileLayer('https://{s}.tile.openstreetmap.org/{z}/{x}/{y}.png', {
+  attribution: '© OpenStreetMap contributors'
+});
+
+L.tileLayer("https://{s}.tile.openstreetmap.org/{z}/{x}/{y}.png", {
+  attribution: '© <a href="https://www.openstreetmap.org/copyright">OpenStreetMap</a>',
+}).addTo(map);
+
+const API_URL = "http://localhost:7653/api/v0/";
+const ROUTE_STYLES = {
+  "701": { color: "#0074D9", train: "🔵", stop: "🔹" },
+  "704": { color: "#2ECC40", train: "🟢", stop: "🟩" },
+  "703": { color: "#FF4136", train: "🔴", stop: "🔺" },
+  "750": { color: "#B10DC9", train: "🟣", stop: "🔮" },
+  "720": { color: "#000000", train: "⚪", stop: "🔷" }
+};
+
+
+function buildIcon(emoji, bearing) {
+  const svg = `
+  <svg xmlns="http://www.w3.org/2000/svg" width="32" height="32">
+    <text x="50%" y="50%" text-anchor="middle"
+          dominant-baseline="central" font-size="26"
+          font-family="Apple Color Emoji, Segoe UI Emoji, NotoColorEmoji, sans-serif"
+          >
+      ${emoji}
+    </text>
+  </svg>`;
+
+  return L.divIcon({
+    html: svg,
+    className: "emoji-icon",
+    iconSize: [32, 32],
+    iconAnchor: [16, 16],
+    popupAnchor: [0, -16]
+  });
+}
+
+function addMarker(lat, lon, content, icon) {
+  if (!isNaN(lat) && !isNaN(lon)) {
+    const marker = L.marker([lat, lon], { icon: icon }).addTo(map);
+    if (content) marker.bindPopup(content);
+  } else {
+    console.warn("Invalid coordinates:", latitude, longitude);
+  }
+}
+
+
+function drawPolyLine(polylinePoints, color) {
+  L.polyline(polylinePoints, { color, weight: 4, opacity: 0.8 }).addTo(map);
+}
+
+function drawLine(route) {
+  fetch(API_URL + "routepaths/" + route)
+    .then(res => res.json())
+    .then(data => {
+      const trains = data.data;
+      const filtered = route ? trains.filter(t => t.routeId == route) : trains;
+      filtered.forEach(t => {
+        addMarker(t.location.latitude, t.location.longitude, t.routeName + ": Vehicle " + t.vehicleId, trainEmojiIcon);
+      });
+    })
+    .catch(err => console.error("Error fetching trains:", err));
+}
+
+function drawLines() {
+  MJR_LINES.forEach(drawLine);
+}
+
+
+let stopMarkers = {};
+function getStopsByRoute(route) {
+  fetch(API_URL + 'stops/' + route)
+    .then(res => res.json())
+    .then(data => {
+      const stops = data.data;
+      stops.forEach(s => {
+          const lat = parseFloat(s.stop_lat);
+          const lon = parseFloat(s.stop_lon);
+        addMarker(lat,lon, s.stop_name + " - " + s.stop_desc, stopsEmojiIcon);
+      });
+    })
+    .catch(err => console.error("Error fetching stops:", err));
+}
+
+let trainMarkers = {};
+let filterType = "all";
+
+const filterSelect = document.getElementById("filterSelect");
+if (filterSelect) {
+  filterSelect.addEventListener("change", (e) => {
+    filterType = e.target.value;
+  });
+}
+
+function refreshVehicles() {
+  fetch(API_URL + "vehicles")
+    .then(res => res.json())
+    .then(data => {
+      let vehicles = data.data;
+
+      if (filterType === "lrt") {
+        vehicles = vehicles.filter(v => LRT_LINES.includes(v.routeNum) || FRONTRUNNER.includes(v.routeNum));
+      }
+
+      vehicles = vehicles.filter(v => MJR_LINES.includes(v.routeNum));
+
+      Object.keys(trainMarkers).forEach(id => {
+        if (!vehicles.find(v => v.vehicleId == id)) {
+          map.removeLayer(trainMarkers[id]);
+          delete trainMarkers[id];
+        }
+      });
+
+      vehicles.forEach(v => {
+        const { vehicleId, routeNum, routeName, speed, bearing } = v;
+        const lat = v.location.latitude;
+        const lon = v.location.longitude;
+        const icon = buildIcon(ROUTE_STYLES[routeNum].train, bearing);
+
+        if (!trainMarkers[vehicleId]) {
+          const marker = L.marker([lat, lon], { icon })
+            .bindPopup(`${routeName}<br>Vehicle ${vehicleId}<br>Speed: ${(speed*2.23694).toFixed(1)} mph`)
+            .addTo(map);
+          marker.vehicleData = v;
+          trainMarkers[vehicleId] = marker;
+        } else {
+          if (trainMarkers[vehicleId].slideTo) {
+            trainMarkers[vehicleId].slideTo([lat, lon], { duration: 1000 });
+          } else {
+            trainMarkers[vehicleId].setLatLng([lat, lon]);
+          }
+          trainMarkers[vehicleId].setIcon(icon);
+          trainMarkers[vehicleId].vehicleData = v;
+        }
+      });
+    })
+    .catch(err => console.error("Error refreshing vehicles:", err));
+}
+
+
+let userMarker, accuracyCircle;
+const ON_BOARD_RADIUS = 50; // meters
+
+if (navigator.geolocation) {
+  navigator.geolocation.getCurrentPosition(
+    (position) => {
+      const lat = position.coords.latitude;
+      const lon = position.coords.longitude;
+
+      userMarker = L.circleMarker([lat, lon], {
+        radius: 8,
+        fillColor: "#007AFF",
+        color: "#fff",
+        weight: 2,
+        opacity: 1,
+        fillOpacity: 0.9
+      }).addTo(map);
+      userMarker.bindPopup("You are here").openPopup();
+
+      accuracyCircle = L.circle([lat, lon], {
+        radius: position.coords.accuracy,
+        color: "#007AFF",
+        fillColor: "#007AFF",
+        fillOpacity: 0.2
+      }).addTo(map);
+
+      map.setView([lat, lon], 13);
+    },
+    (err) => console.warn("Geolocation error:", err.message),
+    { enableHighAccuracy: true, timeout: 500, maximumAge: 0 }
+  );
+
+  navigator.geolocation.watchPosition(
+    (position) => {
+      const userLat = position.coords.latitude;
+      const userLon = position.coords.longitude;
+
+      if (userMarker) userMarker.setLatLng([userLat, userLon]);
+      if (accuracyCircle) accuracyCircle.setLatLng([userLat, userLon]).setRadius(position.coords.accuracy);
+
+      const vehicles = Object.values(trainMarkers).map(m => m.vehicleData);
+      let closest = null, minDistance = Infinity;
+
+      vehicles.forEach(v => {
+        const distance = map.distance([userLat, userLon], [v.location.latitude, v.location.longitude]);
+        if (distance < minDistance) {
+          minDistance = distance;
+          closest = v;
+        }
+      });
+
+      if (closest && minDistance <= ON_BOARD_RADIUS) {
+        console.log(`User is on vehicle ${closest.vehicleId} (${closest.routeNum})`);
+      }
+    },
+    (err) => console.warn("Geolocation watch error:", err.message),
+    { enableHighAccuracy: true, maximumAge: 0 }
+  );
+} else {
+  console.warn("Geolocation not supported by this browser.");
+}
+
+drawLines();
+MJR_LINES.forEach(r => getStopsByRoute(r));
+refreshVehicles();
+setInterval(refreshVehicles, 1000);

public/index.html

@@ -0,0 +1,24 @@
+<!DOCTYPE html>
+<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>

src/dal/data/routes.json

@@ -0,0 +1,27 @@
+[
+  {
+    "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"
+  }
+]

src/dal/data/vehicles.json

@@ -0,0 +1,68 @@
+[
+  {
+    "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
+    }
+  }
+]

src/dal/postgresDAL.js

@@ -0,0 +1,159 @@
+import pg from "pg";
+
+const pool = new pg.Pool({
+  connectionString: "postgresql://nate@localhost:5432/gtfs"
+});
+
+async function dbQuery(sql, params = []) {
+  const client = await pool.connect();
+  try {
+    const res = await client.query(sql, params);
+    return res.rows;
+  } finally {
+    client.release();
+  }
+}
+
+function toNumber(v) {
+  const n = Number(v);
+  return Number.isFinite(n) ? n : undefined;
+}
+
+
+export async function getVehicles() {
+  const rows = await dbQuery(
+    `SELECT vehicle_id, route_num, route_name, destination,
+            bearing, speed, latitude, longitude
+     FROM vehicles`
+  );
+
+  return rows.map((v) => ({
+    vehicleId: v.vehicle_id,
+    routeNum: v.route_num,
+    routeName: v.route_name,
+    destination: v.destination,
+    bearing: v.bearing == null ? undefined : toNumber(v.bearing),
+    speed: v.speed == null ? undefined : toNumber(v.speed),
+    location: {
+      latitude: toNumber(v.latitude),
+      longitude: toNumber(v.longitude),
+    },
+  }));
+}
+
+export async function getVehicleById(id) {
+  if (id == null) return null;
+
+  const rows = await dbQuery(
+    `SELECT vehicle_id, route_num, route_name, destination,
+            bearing, speed, latitude, longitude
+     FROM vehicles
+     WHERE vehicle_id = $1`,
+    [String(id)]
+  );
+
+  if (!rows.length) return null;
+  const v = rows[0];
+
+  return {
+    vehicleId: v.vehicle_id,
+    routeNum: v.route_num,
+    routeName: v.route_name,
+    destination: v.destination,
+    bearing: v.bearing == null ? undefined : toNumber(v.bearing),
+    speed: v.speed == null ? undefined : toNumber(v.speed),
+    location: {
+      latitude: toNumber(v.latitude),
+      longitude: toNumber(v.longitude),
+    },
+  };
+}
+
+
+export async function getRoutes() {
+  const rows = await dbQuery(`SELECT data FROM routes ORDER BY route_id`);
+  return rows.map((r) => r.data);
+}
+
+export async function getRouteById(routeId) {
+  if (routeId == null) return null;
+
+  const rows = await dbQuery(
+    `SELECT data FROM routes WHERE route_id = $1`,
+    [String(routeId)]
+  );
+
+  return rows[0]?.data || null;
+}
+
+
+export async function getRoutePathsMap() {
+  const rows = await dbQuery(`SELECT route_id, path FROM route_paths`);
+  const map = {};
+  for (const row of rows) {
+    map[String(row.route_id)] = row.path;
+  }
+  return map;
+}
+
+export async function getRoutePath(routeId) {
+  if (routeId == null) return null;
+
+  const rows = await dbQuery(
+    `SELECT path FROM route_paths WHERE route_id = $1`,
+    [String(routeId)]
+  );
+
+  return rows[0]?.path || null;
+}
+
+
+function transformationStationRow(row) {
+  return {
+    stop_id: row.stop_id,
+    stop_code: row.stop_code,
+    stop_name: row.stop_name,
+    stop_desc: row.stop_desc,
+    location: {
+      latitude: toNumber(row.latitude),
+      longitude: toNumber(row.longitude),
+    },
+    stop_url: row.stop_url,
+    location_type: row.location_type,
+    parent_station: row.parent_station,
+    lines: row.lines, // text[]
+  };
+}
+
+export async function getStationsRaw() {
+  const rows = await dbQuery(`SELECT * FROM stations`);
+  return rows;
+}
+
+export async function getStations() {
+  const rows = await dbQuery(`SELECT * FROM stations`);
+  return rows.map(transformationStationRow);
+}
+
+export async function getStopsByRoute(routeId) {
+  if (routeId == null) return [];
+  const rows = await dbQuery(
+    `SELECT * FROM stations WHERE lines @> ARRAY[$1]::text[]`,
+    [String(routeId)]
+  );
+  return rows.map(transformationStationRow);
+}
+
+export async function getStationById(id) {
+  if (id == null) return null;
+
+  const rows = await dbQuery(
+    `SELECT * FROM stations WHERE stop_id = $1`,
+    [String(id)]
+  );
+
+  if (!rows.length) return null;
+  return transformationStationRow(rows[0]);
+}
+
+

src/dal/staticDal.js

@@ -0,0 +1,192 @@
+import fs from "fs";
+import path from "path";
+
+const dataDir = path.join(process.cwd(), "src", "dal", "data");
+
+function readJSON(name) {
+  try {
+    const p = path.join(dataDir, name);
+
+    if (!fs.existsSync(p)) return null;
+    return JSON.parse(fs.readFileSync(p, "utf8"));
+  } catch {
+    return null;
+  }
+}
+
+function toNumber(v) {
+  const n = Number(v);
+  return Number.isFinite(n) ? n : undefined;
+}
+
+export function getVehicles() {
+  const raw = readJSON("vehicles.json");
+
+  if (!Array.isArray(raw)) return [];
+  return raw.map(v => {
+    const loc = v.location || {};
+
+    return {
+      vehicleId: v.vehicleId,
+      routeNum: v.routeNum,
+      routeName: v.routeName,
+      destination: v.destination,
+      bearing: v.bearing == null ? undefined : toNumber(v.bearing),
+      speed: v.speed == null ? undefined : toNumber(v.speed),
+      location: {
+        latitude: toNumber(loc.latitude),
+        longitude: toNumber(loc.longitude)
+      }
+    };
+
+  });
+
+}
+
+export function getVehicleById(id) {
+  if (id == null) return null;
+  const vehicles = getVehicles();
+
+  return vehicles.find(v => String(v.vehicleId) === String(id)) || null;
+}
+
+export function getRoutes() {
+  const raw = readJSON("routes.json");
+
+  if (!Array.isArray(raw)) return [];
+  return raw;
+}
+
+export function getRouteById(routeId) {
+  if (routeId == null) return null;
+  const routes = getRoutes();
+
+  return routes.find(r => String(r.route_id) === String(routeId)) || null;
+}
+
+function readRoutepathsRaw() {
+  const raw = readJSON("routePath.json");
+
+  if (!Array.isArray(raw)) return [];
+  return raw;
+}
+
+export function getRoutePathsMap() {
+  const raw = readRoutepathsRaw();
+  const map = {};
+
+  for (const item of raw) {
+    if (!item || typeof item !== "object" || Array.isArray(item)) continue;
+    const keys = Object.keys(item);
+
+    if (keys.length !== 1) continue;
+    const k = String(keys[0]);
+
+    if (Array.isArray(item[k])) map[k] = item[k];
+  }
+
+  return map;
+}
+
+export function getRoutePath(routeId) {
+  if (routeId == null) return null;
+  const map = getRoutePathsMap();
+  const key = String(routeId);
+
+  return Object.prototype.hasOwnProperty.call(map, key) ? map[key] : null;
+}
+
+export function getStationsRaw() {
+  return readJSON("stations.json") || null;
+}
+
+export function getStations() {
+  const raw = getStationsRaw(); 
+
+  if (raw == null) return [];
+  if (Array.isArray(raw)) {
+    const isArrayOfMaps = raw.every(item => typeof item === "object" && !Array.isArray(item) && Object.values(item).every(v => Array.isArray(v)));
+    if (isArrayOfMaps) return raw.flatMap(item => Object.values(item).flat());
+    return raw;
+  }
+  if (typeof raw === "object") {
+    return Object.values(raw).flat();
+  }
+  return [];
+
+}
+
+function transformationStation(s) {
+  return {
+    stop_id: s.stop_id,
+    stop_code: s.stop_code,
+    stop_name: s.stop_name,
+    stop_desc: s.stop_desc,
+    location: { latitude: toNumber(s.stop_lat), longitude: toNumber(s.stop_lon) },
+    stop_url: s.stop_url,
+    location_type: s.location_type,
+    parent_station: s.parent_station,
+    lines: s.lines
+  };
+}
+
+export function getStopsByRoute(routeId) {
+  if (routeId == null) return [];
+  const raw = getStationsRaw();
+  
+  if (raw == null) return [];
+  if (typeof raw === "object" && !Array.isArray(raw)) {
+    const arr = raw[routeId];
+    if (!Array.isArray(arr)) return [];
+    return arr.map(transformationStation);
+  }
+
+  if (Array.isArray(raw)) {
+    const matchesFromArrayMaps = [];
+    for (const item of raw) {
+      if (typeof item === "object" && !Array.isArray(item) && Object.prototype.hasOwnProperty.call(item, routeId)) {
+        const arr = item[routeId];
+        if (Array.isArray(arr)) matchesFromArrayMaps.push(...arr.map(transformationStation));
+      }
+    }
+    if (matchesFromArrayMaps.length) return matchesFromArrayMaps;
+
+    return raw.filter(s => Array.isArray(s.lines) && s.lines.map(String).includes(String(routeId))).map(transformationStation);
+  }
+
+  return [];
+}
+
+export function getStationById(id) {
+  if (id == null) return null;
+  const raw = getStationsRaw();
+  if (raw == null) return null;
+
+  if (typeof raw === "object" && !Array.isArray(raw)) {
+    for (const key of Object.keys(raw)) {
+      const arr = raw[key];
+      if (!Array.isArray(arr)) continue;
+      const found = arr.find(s => String(s.stop_id) === String(id) || String(s.stationId) === String(id));
+      if (found) return transformationStation(found);
+    }
+    return null;
+  }
+
+  if (Array.isArray(raw)) {
+    const isArrayOfMaps = raw.every(item => typeof item === "object" && !Array.isArray(item) && Object.values(item).every(v => Array.isArray(v)));
+    if (isArrayOfMaps) {
+      for (const item of raw) {
+        for (const key of Object.keys(item)) {
+          const arr = item[key];
+          const found = arr.find(s => String(s.stop_id) === String(id));
+          if (found) return transformationStation(found);
+        }
+      }
+      return null;
+    }
+    const found = raw.find(s => String(s.stop_id) === String(id) || String(s.stationId) === String(id));
+    return found ? transformationStation(found) : null;
+  }
+
+  return null;
+}

src/routes/routes.js

@@ -0,0 +1,69 @@
+import express from "express";
+import * as dal from "../dal/staticDal.js";
+
+const router = express.Router();
+
+router.get("/routes", (req, res) => {
+  const routes = dal.getRoutes();
+
+  res.json({meta: {returned: routes.length}, data: routes});
+});
+
+router.get("/routes/:routeId", (req, res) => {
+  const routeId = req.params.routeId;
+  const route = dal.getRouteById(routeId);
+
+  if (!route) return res.status(404).json({error: "Route Was Not Found"});
+  const stations = dal.getStopsByRoute(routeId);
+
+  res.json({data: {route, stations}});
+});
+
+router.get("/route/:routeId", (req, res) => {
+  const routeId = req.params.routeId;
+  const route = dal.getRouteById(routeId);
+
+  if (!route) return res.status(404).json({error: "Route Was Not Found"});
+  const stations = dal.getStopsByRoute(routeId);
+  
+  res.json({data: {route, stations}});
+});
+
+router.get("/routepaths/:routeId", (req, res) => {
+  const routeId = req.params.routeId;
+  const rp = dal.getRoutePath(routeId);
+
+  if (!rp) return res.status(404).json({error: "RoutePath Was Not Found"});
+  res.json({meta: {routeId: String(routeId), returned: Array.isArray(rp) ? rp.length : 0}, data: rp});
+});
+
+router.get("/routes/:routeId/stations", (req, res) => {
+  const routeId = req.params.routeId;
+  const stations = dal.getStopsByRoute(routeId);
+
+  res.json({meta: {routeId: String(routeId), returned: stations.length}, data: stations});
+});
+
+router.get("/stops/:routeId", (req, res) => {
+  const routeId = req.params.routeId;
+  const stations = dal.getStopsByRoute(routeId);
+
+  res.json({meta: {routeId: String(routeId), returned: stations.length}, data: stations});
+});
+
+router.get("/stations", (req, res) => {
+  const route = req.query.route;
+  const stations = route ? dal.getStopsByRoute(route) : dal.getStations();
+
+  res.json({meta: {returned: stations.length}, data: stations});
+});
+
+router.get("/station/:stationId", (req, res) => {
+  const stationId = req.params.stationId;
+  const station = dal.getStationById(stationId);
+
+  if (!station) return res.status(404).json({error: "Station Was Not Found"});
+  res.json({data: station});
+});
+
+export default router;

src/routes/vehicles.js

@@ -0,0 +1,48 @@
+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;

start.js

@@ -0,0 +1,12 @@
+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}`);
+});