33 lines
849 B
JavaScript
33 lines
849 B
JavaScript
const express = require('express');
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const app = express();
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const PORT = 3000;
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const fs = require('fs');
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const path = require('path');
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const GeoJsonGeometriesLookup = require("geojson-geometries-lookup");
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app.use(express.static(path.join(__dirname, 'public')));
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app.use('/', (req, res) => {
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const lat = parseFloat(req.query.lat);
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const lon = parseFloat(req.query.lon);
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if (!lat || !lon) return
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const f = fs.readFileSync(path.join(__dirname, 'public/circonscriptions-legislatives.json'), 'utf-8');
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const data = JSON.parse(f)
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gl = new GeoJsonGeometriesLookup(data);
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const pos = {
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type: "Point",
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coordinates: [lon, lat],
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};
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res.json({
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"code": gl.getContainers(pos).features[0]?.properties["REF"]
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})
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})
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app.listen(PORT, () => console.log(`Server listening on port: ${PORT}`));
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