find a market
This commit is contained in:
Creat0r
3
.vscode/settings.json
vendored
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3
.vscode/settings.json
vendored
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@ -0,0 +1,3 @@
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{
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"liveServer.settings.port": 5501
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}
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@ -125,6 +125,12 @@
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</div>
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</button>
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<button class="button" onclick="window.location.href='/supermarket-finder'">
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<div class="button-inner">
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<span class="button-text">Find a market</span>
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</div>
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</button>
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<footer><i id="footer-text"></i></footer>
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<script>
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// Ladeanimation beim Laden der Seite anzeigen
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6
package-lock.json
generated
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6
package-lock.json
generated
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{
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"name": "test.creative-crafter.de",
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"lockfileVersion": 3,
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"requires": true,
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"packages": {}
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}
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270
supermarket-finder/app.js
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270
supermarket-finder/app.js
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// app.js - Modern, idiot-proof, client-only (Overpass + Leaflet)
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// Features: Dark mode toggle (persist), caching (5 min), top-5 list, multiple Overpass endpoints fallback
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// --- UI elements
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const findBtn = document.getElementById('findBtn');
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const resetBtn = document.getElementById('resetBtn');
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const statusEl = document.getElementById('status');
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const outputEl = document.getElementById('output');
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const themeSwitch = document.getElementById('themeSwitch');
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// --- Map state
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let map, userMarker, shopMarker;
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// --- Overpass endpoints fallback (CORS-friendly mirrors)
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const OVERPASS_ENDPOINTS = [
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'https://overpass-api.de/api/interpreter',
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'https://overpass.kumi.systems/api/interpreter',
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'https://lz4.overpass-api.de/api/interpreter'
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];
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// --- small helpers
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function setStatus(txt) { statusEl.textContent = txt; }
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function showHTML(html) { outputEl.innerHTML = html; outputEl.style.display = 'block'; }
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function clearOutput() { outputEl.innerHTML = ''; outputEl.style.display = 'none'; }
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function roundCoord(x){ return Math.round(x*10000)/10000; } // for cache key
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// --- caching: simple localStorage cache (keyed by rounded coords)
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// stores { ts: timestamp_ms, payload: {...} }
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const CACHE_TTL = 1000 * 60 * 5; // 5 minutes
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function getCacheKey(lat, lon, radius=3000){ return `osm_nearest_${roundCoord(lat)}_${roundCoord(lon)}_${radius}`;}
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function readCache(key){
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try {
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const s = localStorage.getItem(key);
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if(!s) return null;
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const obj = JSON.parse(s);
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if(Date.now() - obj.ts > CACHE_TTL) { localStorage.removeItem(key); return null; }
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return obj.payload;
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} catch(e){ return null; }
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}
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function writeCache(key, payload){
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try { localStorage.setItem(key, JSON.stringify({ ts: Date.now(), payload })); } catch(e){}
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}
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// --- haversine distance (meters)
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function haversine(lat1, lon1, lat2, lon2){
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const R = 6371e3;
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const toRad = d => d * Math.PI / 180;
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const φ1 = toRad(lat1), φ2 = toRad(lat2);
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const Δφ = toRad(lat2 - lat1), Δλ = toRad(lon2 - lon1);
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const a = Math.sin(Δφ/2)**2 + Math.cos(φ1)*Math.cos(φ2)*Math.sin(Δλ/2)**2;
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return R * 2 * Math.atan2(Math.sqrt(a), Math.sqrt(1-a));
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}
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// --- build Overpass QL
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function buildQuery(lat, lon, radius=3000, maxResults=30){
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return `
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[out:json][timeout:25];
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(
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node["shop"~"supermarket|grocery|convenience"](around:${radius},${lat},${lon});
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way["shop"~"supermarket|grocery|convenience"](around:${radius},${lat},${lon});
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relation["shop"~"supermarket|grocery|convenience"](around:${radius},${lat},${lon});
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);
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out center ${maxResults};
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`;
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}
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// --- try endpoints sequentially
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async function queryOverpass(query){
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let lastError = null;
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for(const ep of OVERPASS_ENDPOINTS){
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try {
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console.log('Trying Overpass endpoint:', ep);
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const resp = await fetch(ep, {
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method: 'POST',
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headers: { 'Content-Type': 'text/plain' },
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body: query,
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mode: 'cors'
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});
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if(!resp.ok){
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const t = await resp.text().catch(()=>null);
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lastError = { endpoint: ep, status: resp.status, text: t };
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console.warn('Overpass returned non-OK', lastError);
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continue;
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}
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const data = await resp.json();
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return { data, endpoint: ep };
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} catch(err){
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lastError = { endpoint: ep, message: err.message || String(err) };
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console.warn('Overpass fetch error', lastError);
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continue;
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}
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}
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const e = new Error('All Overpass endpoints failed');
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e.details = lastError;
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throw e;
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}
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// --- map helpers
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function initMap(lat=20, lon=0, zoom=2){
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if(!map){
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map = L.map('map', { zoomControl:true, attributionControl: true }).setView([lat, lon], zoom);
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L.tileLayer('https://{s}.tile.openstreetmap.org/{z}/{x}/{y}.png', { maxZoom: 19 }).addTo(map);
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} else {
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map.setView([lat, lon], zoom);
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}
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}
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function setMarkers(userLat, userLon, shopLat, shopLon, shopName){
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if(userMarker) userMarker.remove(); if(shopMarker) shopMarker.remove();
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userMarker = L.marker([userLat, userLon]).addTo(map).bindPopup('You are here').openPopup();
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shopMarker = L.marker([shopLat, shopLon]).addTo(map).bindPopup(shopName || 'Supermarket');
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const bounds = L.latLngBounds([[userLat, userLon],[shopLat, shopLon]]);
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map.fitBounds(bounds.pad(0.2));
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}
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// --- main search flow
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async function findNearest(){
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clearOutput();
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setStatus('Requesting your location — please allow location access.');
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if(!navigator.geolocation){
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setStatus('Geolocation not supported by your browser.');
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return;
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}
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navigator.geolocation.getCurrentPosition(async pos=>{
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const lat = pos.coords.latitude;
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const lon = pos.coords.longitude;
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const radius = 3000;
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setStatus(`Location acquired: ${lat.toFixed(5)}, ${lon.toFixed(5)} — searching within ${radius} m...`);
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initMap(lat, lon, 15);
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const cacheKey = getCacheKey(lat, lon, radius);
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const cached = readCache(cacheKey);
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if(cached){
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setStatus(`Using cached result (${Math.round((cached.sourceAge||0)/1000)}s ago).`);
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renderResults(cached.payload, lat, lon);
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return;
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}
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const q = buildQuery(lat, lon, radius, 40);
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try {
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const { data, endpoint } = await queryOverpass(q);
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if(!data || !Array.isArray(data.elements) || data.elements.length === 0){
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setStatus('No supermarkets found within radius. Try increasing radius or moving closer to shops.');
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showHTML(`<div style="color:#d97706;font-weight:700">No supermarkets found within ${radius} m.</div><div style="color:var(--muted);margin-top:8px">Endpoint: ${endpoint || 'none'}</div>`);
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return;
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}
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// build candidate list with usable coords + distance
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const candidates = [];
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for(const el of data.elements){
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let elLat = null, elLon = null;
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if(el.type === 'node'){ elLat = el.lat; elLon = el.lon; }
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else if(el.type === 'way' || el.type === 'relation'){
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if(el.center && typeof el.center.lat === 'number'){ elLat = el.center.lat; elLon = el.center.lon; }
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else continue;
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} else continue;
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const dist = Math.round(haversine(lat, lon, elLat, elLon));
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candidates.push({ el, lat: elLat, lon: elLon, dist });
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}
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if(candidates.length === 0){
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setStatus('No usable coordinates in results.');
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showHTML(`<div style="color:var(--muted)">Overpass returned results, but none had usable coordinates.</div>`);
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return;
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}
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candidates.sort((a,b)=>a.dist - b.dist);
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// prepare a compact payload to cache & render
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const payload = {
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endpoint,
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results: candidates.slice(0,10).map(c => ({
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id: c.el.id,
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type: c.el.type,
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name: c.el.tags?.name || c.el.tags?.operator || 'Unnamed',
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lat: c.lat,
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lon: c.lon,
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dist: c.dist
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}))
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};
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// cache it
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writeCache(cacheKey, { payload, sourceAge:0 });
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// store sourceAge in payload for immediate display clarity
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payload.sourceAge = 0;
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renderResults(payload, lat, lon);
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setStatus(`Found ${payload.results.length} nearby supermarkets (endpoint: ${endpoint}).`);
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} catch(err){
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console.error('Search failed', err);
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const msg = err?.message || 'Search failed';
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setStatus('Search failed — see details below.');
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showHTML(`<div style="color:darkred;font-weight:700">${msg}</div><div style="color:var(--muted);margin-top:8px">Possible reason: Overpass endpoint unreachable or rate-limited. Try again later or use a different network.</div>`);
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}
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}, err=>{
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if(err.code === 1) setStatus('Location access denied. Allow location permissions for this site.');
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else if(err.code === 2) setStatus('Position unavailable.');
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else if(err.code === 3) setStatus('Timeout while getting location.');
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else setStatus('Unknown geolocation error.');
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}, { enableHighAccuracy:true, maximumAge:0, timeout:20000 });
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}
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// --- render results to UI
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function renderResults(payload, originLat, originLon){
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if(!payload || !Array.isArray(payload.results)) { showHTML('<div>No results to display.</div>'); return; }
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const nearest = payload.results[0];
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let html = `<div><h1 class="result-title">${escapeHtml(nearest.name)}</h1>`;
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html += `<div class="distance">${(nearest.dist/1000).toFixed(2)} km · ${nearest.dist} m away</div>`;
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const mapsLink = `https://www.openstreetmap.org/${nearest.type}/${nearest.id}`;
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const directionsLink = `https://www.openstreetmap.org/directions?engine=fossgis_osrm_car&route=${originLat},${originLon};${nearest.lat},${nearest.lon}`;
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html += `<div class="actions"><a class="big-link" href="${mapsLink}" target="_blank" rel="noopener">🗺 View on OSM</a> <a class="big-link" href="${directionsLink}" target="_blank" rel="noopener">🚗 Directions</a></div>`;
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html += `<div style="margin-top:10px;color:var(--muted)">Endpoint: ${escapeHtml(payload.endpoint || 'unknown')}</div>`;
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// top list
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html += `<hr style="margin:12px 0">`;
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html += `<div style="font-weight:700;margin-bottom:8px">Other nearby supermarkets (top ${Math.min(5,payload.results.length)}):</div><ol class="results-list">`;
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const top = payload.results.slice(0,5);
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for(const r of top){
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const rlink = `https://www.openstreetmap.org/${r.type}/${r.id}`;
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html += `<li><a href="${rlink}" target="_blank" rel="noopener">${escapeHtml(r.name)}</a> — ${(r.dist/1000).toFixed(2)} km</li>`;
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}
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html += `</ol></div>`;
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showHTML(html);
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// place markers on map
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initMap(originLat, originLon, 15);
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setMarkers(originLat, originLon, nearest.lat, nearest.lon, nearest.name);
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}
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// small utility to escape html
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function escapeHtml(s){ return String(s).replace(/[&<>"']/g, c => ({'&':'&','<':'<','>':'>','"':'"',"'":'''}[c])); }
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// --- theme handling (persist)
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function applyTheme(dark){
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if(dark) document.documentElement.setAttribute('data-theme','dark');
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else document.documentElement.removeAttribute('data-theme');
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try { localStorage.setItem('theme_dark', dark ? '1' : '0'); } catch(e){}
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}
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function initTheme(){
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const stored = localStorage.getItem('theme_dark');
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if(stored === null){
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// default follow prefers-color-scheme (dark) or light
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const prefersDark = window.matchMedia && window.matchMedia('(prefers-color-scheme: dark)').matches;
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themeSwitch.checked = prefersDark;
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applyTheme(prefersDark);
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} else {
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const dark = stored === '1';
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themeSwitch.checked = dark;
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applyTheme(dark);
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}
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}
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themeSwitch.addEventListener('change', () => applyTheme(themeSwitch.checked));
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initTheme();
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// --- reset
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resetBtn.addEventListener('click', () => {
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clearOutput();
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setStatus('Tap "Find" and allow location access.');
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if(map) { map.setView([20,0],2); if(userMarker){ userMarker.remove(); userMarker=null;} if(shopMarker){ shopMarker.remove(); shopMarker=null;} }
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});
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// --- init minimal map on load
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document.addEventListener('DOMContentLoaded', () => {
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try{ initMap(20,0,2); } catch(e){ console.warn('Leaflet init failed', e); }
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// bind find
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findBtn.addEventListener('click', findNearest);
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});
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195
supermarket-finder/index.html
Normal file
195
supermarket-finder/index.html
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@ -0,0 +1,195 @@
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<!doctype html>
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<html lang="en-US">
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<head>
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<meta charset="utf-8" />
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<meta name="viewport" content="width=device-width,initial-scale=1" />
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<title>Nearest Supermarket — Modern</title>
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<!-- Inter font (modern) -->
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<link href="https://fonts.googleapis.com/css2?family=Inter:wght@300;400;600;700;800&display=swap" rel="stylesheet">
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|
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<!-- Leaflet CSS -->
|
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<link rel="stylesheet" href="https://unpkg.com/leaflet/dist/leaflet.css" />
|
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|
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<style>
|
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:root{
|
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--bg: #ffffff;
|
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--card: #ffffff;
|
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--text: #0f1724;
|
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--muted: #6b7280;
|
||||
--blue: #0b54a0; /* darker blue for Light mode */
|
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--blue-accent: #0b54a0;
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--success: #16a34a;
|
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--radius: 14px;
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--glass: rgba(255,255,255,0.6);
|
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}
|
||||
|
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/* Dark theme variables (apply via [data-theme="dark"]) */
|
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:root[data-theme="dark"]{
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||||
--bg: #000000;
|
||||
--card: #0b0b0c;
|
||||
--text: #ffffff;
|
||||
--muted: #9ca3af;
|
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--blue: #59b7ff; /* lighter blue for Dark mode */
|
||||
--blue-accent: #59b7ff;
|
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--glass: rgba(255,255,255,0.04);
|
||||
}
|
||||
|
||||
html,body{
|
||||
height:100%;
|
||||
margin:0;
|
||||
font-family: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial;
|
||||
background: linear-gradient(180deg, var(--bg), var(--bg));
|
||||
color: var(--text);
|
||||
-webkit-font-smoothing:antialiased;
|
||||
-moz-osx-font-smoothing:grayscale;
|
||||
}
|
||||
|
||||
header{
|
||||
display:flex;
|
||||
align-items:center;
|
||||
justify-content:space-between;
|
||||
gap:12px;
|
||||
padding:14px 18px;
|
||||
background: linear-gradient(90deg, var(--blue) 0%, color-mix(in srgb, var(--blue) 60%, black 40%) 100%);
|
||||
color:white;
|
||||
box-shadow: 0 6px 20px rgba(2,6,23,0.12);
|
||||
}
|
||||
.brand { font-weight:700; font-size:1.1rem; }
|
||||
.subtitle { font-weight:500; opacity:0.92; font-size:0.92rem; }
|
||||
|
||||
main{
|
||||
max-width:880px;
|
||||
margin:18px auto;
|
||||
padding:12px;
|
||||
}
|
||||
|
||||
.controls {
|
||||
display:flex;
|
||||
gap:12px;
|
||||
align-items:center;
|
||||
margin-bottom:12px;
|
||||
flex-wrap:wrap;
|
||||
}
|
||||
|
||||
.btn-primary{
|
||||
background: var(--blue-accent);
|
||||
color: white;
|
||||
border: none;
|
||||
padding: 14px 18px;
|
||||
border-radius: 12px;
|
||||
font-weight:700;
|
||||
font-size:1.02rem;
|
||||
cursor:pointer;
|
||||
box-shadow: 0 8px 24px color-mix(in srgb, var(--blue-accent) 12%, transparent);
|
||||
transition: transform .08s ease, box-shadow .12s ease;
|
||||
}
|
||||
.btn-primary:active{ transform: translateY(1px); }
|
||||
.btn-ghost{
|
||||
background: var(--glass);
|
||||
border: 1px solid rgba(0,0,0,0.06);
|
||||
color: var(--text);
|
||||
padding:12px 14px;
|
||||
border-radius: 10px;
|
||||
cursor:pointer;
|
||||
font-weight:600;
|
||||
}
|
||||
|
||||
.theme-toggle {
|
||||
margin-left:auto;
|
||||
display:flex;
|
||||
gap:10px;
|
||||
align-items:center;
|
||||
}
|
||||
|
||||
#status {
|
||||
margin-top:8px;
|
||||
color:var(--muted);
|
||||
font-size:0.96rem;
|
||||
min-height:1.2rem;
|
||||
}
|
||||
|
||||
.layout {
|
||||
display:grid;
|
||||
grid-template-columns: 1fr 420px;
|
||||
gap:16px;
|
||||
}
|
||||
@media(max-width:980px){
|
||||
.layout { grid-template-columns: 1fr; }
|
||||
}
|
||||
|
||||
.card {
|
||||
background: var(--card);
|
||||
border-radius: var(--radius);
|
||||
padding:14px;
|
||||
box-shadow: 0 6px 24px rgba(2,6,23,0.06);
|
||||
}
|
||||
|
||||
#output {
|
||||
min-height:140px;
|
||||
}
|
||||
|
||||
h1.result-title { margin:0; font-size:1.15rem; font-weight:700; color:var(--text); }
|
||||
.distance { font-size:1.05rem; font-weight:700; margin-top:6px; color:var(--muted); }
|
||||
.actions { margin-top:12px; display:flex; gap:8px; flex-wrap:wrap; }
|
||||
|
||||
.big-link {
|
||||
background:var(--blue);
|
||||
color:white;
|
||||
padding:10px 14px;
|
||||
border-radius:10px;
|
||||
text-decoration:none;
|
||||
font-weight:700;
|
||||
display:inline-block;
|
||||
}
|
||||
|
||||
#map { height:520px; border-radius:12px; overflow:hidden; }
|
||||
|
||||
ol.results-list { margin:12px 0 0 18px; padding:0; color:var(--muted); }
|
||||
ol.results-list li { margin:8px 0; }
|
||||
|
||||
footer { text-align:center; color:var(--muted); margin-top:18px; font-size:0.9rem; }
|
||||
|
||||
/* little accessibility */
|
||||
.sr-only { position:absolute; left:-9999px; top:auto; width:1px; height:1px; overflow:hidden; }
|
||||
</style>
|
||||
</head>
|
||||
<body>
|
||||
<header>
|
||||
<div>
|
||||
<div class="brand">Nearest Supermarket</div>
|
||||
<div class="subtitle">Find the closest grocery — fast & offline-friendly</div>
|
||||
</div>
|
||||
|
||||
<div class="theme-toggle">
|
||||
<label for="themeSwitch" style="font-weight:600;color:rgba(255,255,255,0.9);margin-right:8px">Dark</label>
|
||||
<input id="themeSwitch" type="checkbox" aria-label="Toggle dark mode" />
|
||||
</div>
|
||||
</header>
|
||||
|
||||
<main>
|
||||
<div class="controls">
|
||||
<button id="findBtn" class="btn-primary" aria-live="polite">🔍 Find nearest supermarket</button>
|
||||
<button id="resetBtn" class="btn-ghost">↺ Reset</button>
|
||||
<div id="status" aria-live="polite">Tap "Find" and allow location access.</div>
|
||||
</div>
|
||||
|
||||
<div class="layout">
|
||||
<div class="card" id="leftCard">
|
||||
<div id="output" aria-live="polite" class="card" style="padding:12px;"></div>
|
||||
</div>
|
||||
|
||||
<div class="card" id="rightCard">
|
||||
<div id="map"></div>
|
||||
</div>
|
||||
</div>
|
||||
|
||||
<footer>Data from OpenStreetMap • Uses Overpass API • Works fully in your browser</footer>
|
||||
</main>
|
||||
|
||||
<!-- Leaflet -->
|
||||
<script src="https://unpkg.com/leaflet/dist/leaflet.js"></script>
|
||||
<!-- App -->
|
||||
<script src="app.js"></script>
|
||||
</body>
|
||||
</html>
|
||||
33
test.tx
Normal file
33
test.tx
Normal file
@ -0,0 +1,33 @@
|
||||
npm start
|
||||
|
||||
> supermarket-finder@1.0.0 start
|
||||
> node server.js
|
||||
|
||||
(node:77996) [MODULE_TYPELESS_PACKAGE_JSON] Warning: Module type of file:///C:/Users/.../Documents/.../pivat/test.creative-crafter.de/tools/supermarket-finder/server.js is not specified and it doesn't parse as CommonJS.
|
||||
Reparsing as ES module because module syntax was detected. This incurs a performance overhead.
|
||||
To eliminate this warning, add "type": "module" to C:\Users\...\Documents\...\pivat\test.creative-crafter.de\tools\supermarket-finder\package.json.
|
||||
(Use `node --trace-warnings ...` to show where the warning was created)
|
||||
node:events:497
|
||||
throw er; // Unhandled 'error' event
|
||||
^
|
||||
|
||||
Error: listen EADDRINUSE: address already in use :::3000
|
||||
at Server.setupListenHandle [as _listen2] (node:net:1940:16)
|
||||
at listenInCluster (node:net:1997:12)
|
||||
at Server.listen (node:net:2102:7)
|
||||
at Function.listen (C:\Users\...\Documents\...\pivat\test.creative-crafter.de\tools\supermarket-finder\node_modules\express\lib\application.js:635:24)
|
||||
at file:///C:/Users/.../Documents/.../pivat/test.creative-crafter.de/tools/supermarket-finder/server.js:87:5
|
||||
at ModuleJob.run (node:internal/modules/esm/module_job:345:25)
|
||||
at async onImport.tracePromise.__proto__ (node:internal/modules/esm/loader:651:26)
|
||||
at async asyncRunEntryPointWithESMLoader (node:internal/modules/run_main:117:5)
|
||||
Emitted 'error' event on Server instance at:
|
||||
at emitErrorNT (node:net:1976:8)
|
||||
at process.processTicksAndRejections (node:internal/process/task_queues:90:21) {
|
||||
code: 'EADDRINUSE',
|
||||
errno: -4091,
|
||||
syscall: 'listen',
|
||||
address: '::',
|
||||
port: 3000
|
||||
}
|
||||
|
||||
Node.js v22.19.0
|
||||
Reference in New Issue
Block a user