ElPoyo
80 lines
2.7 KiB
JavaScript
80 lines
2.7 KiB
JavaScript
const fs = require('fs');
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const https = require('https');
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async function main() {
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const env = fs.readFileSync('functions/.env', 'utf8');
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const apiKey = env.split('\n').find(l => l.startsWith('API_MAPS=')).split('=')[1].replace(/"/g, '').trim();
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const data = JSON.stringify({
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"travelMode": "DRIVE",
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"routingPreference": "TRAFFIC_AWARE",
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"origin": { "address": "401 route du camping, 69850 Saint Martin en haut" },
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"destination": { "address": "Salle des fêtes, Orliénas" }
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});
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const options = {
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hostname: 'routes.googleapis.com',
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path: '/directions/v2:computeRoutes',
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method: 'POST',
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headers: {
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'Content-Type': 'application/json',
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'X-Goog-Api-Key': apiKey,
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'X-Goog-FieldMask': 'routes.distanceMeters,routes.duration,routes.polyline.encodedPolyline',
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'Content-Length': data.length
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}
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};
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const req = https.request(options, res => {
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let body = '';
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res.on('data', d => body += d);
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res.on('end', () => {
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const json = JSON.parse(body);
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const encoded = json.routes[0].polyline.encodedPolyline;
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console.log("Encoded string length:", encoded.length);
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// decode
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let index = 0, len = encoded.length;
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let lat = 0, lng = 0;
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const poly = [];
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while (index < len) {
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let b, shift = 0, result = 0;
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do {
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b = encoded.charCodeAt(index++) - 63;
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result |= (b & 0x1f) << shift;
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shift += 5;
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} while (b >= 0x20);
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let dlat = ((result & 1) !== 0 ? ~(result >> 1) : (result >> 1));
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lat += dlat;
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shift = 0;
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result = 0;
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do {
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b = encoded.charCodeAt(index++) - 63;
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result |= (b & 0x1f) << shift;
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shift += 5;
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} while (b >= 0x20);
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let dlng = ((result & 1) !== 0 ? ~(result >> 1) : (result >> 1));
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lng += dlng;
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poly.push([lat / 1e5, lng / 1e5]);
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}
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console.log("Decoded points:", poly.length);
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for(let i=0; i<5; i++) console.log(poly[i]);
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// Search for exploding coordinates
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for(let i=0; i<poly.length; i++) {
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if (Math.abs(poly[i][0]) > 90 || Math.abs(poly[i][1]) > 180) {
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console.log("EXPLODED AT INDEX", i, "POINT:", poly[i]);
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break;
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}
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}
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});
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});
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req.write(data);
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req.end();
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}
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main();
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