Merge branch 'dev' into main
This commit is contained in:
Alexis
88
index.js
88
index.js
@@ -1,71 +1,101 @@
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const { createReadStream, readFileSync } = require('fs')
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const { join } = require('path')
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const express = require('express')
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const cors = require('cors')
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const morgan = require('morgan')
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const helmet = require("helmet");
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const json = require('big-json')
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const app = express()
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app.use(cors())
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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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const lookupTable = require('./rep-lookup')
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app.use(express.static(path.join(__dirname, 'public')))
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const app = express()
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const port = 3000
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// Add modules to express app
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app.use(cors())
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app.use(morgan('common'))
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app.use(helmet())
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// Static files
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app.use(express.static(join(__dirname, 'public')))
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/**
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* MAIN ROUTE
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* Query params :
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* latitude
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* longitude
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*/
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app.use('/rep', async (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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let { lat, lon } = req.query
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if (!lat || !lon) return
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// If the query doesn't contain the required params...
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if (!lat || !lon) {
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res.status(401).json({
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"message": "The request is missing geolocation data. You must use 'lat' and 'lon' in your query."
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});
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return
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}
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const closestCity = await fetch(
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lat = parseFloat(lat)
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lon = parseFloat(lon)
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// Gets closest city from gov api to establish region data
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const closestCity = await (await fetch(
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`https://geo.api.gouv.fr/communes?lat=${lat}&lon=${lon}`
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);
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const body = await closestCity.json();
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let codeDepartement = String(body[0]?.codeDepartement)
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)).json();
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let codeDepartement = String(closestCity[0].codeDepartement)
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if (!codeDepartement || codeDepartement === "") return
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// If somehow, the gov api can't find the nearest city...
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if (!codeDepartement || codeDepartement === "") {
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res.status(400).json({
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"message": "The geolocation wasn't able to pinpoint the region the coords were in."
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});
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return
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}
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// Changes dep code to format of filenames on server, ie "075"
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codeDepartement = codeDepartement.padStart(3, "0");
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const pathToFeatures = path.join(__dirname, `public/cirs/${codeDepartement}.json`)
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const readStream = fs.createReadStream(pathToFeatures)
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// Gets the associated features with a read and parse stream
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const pathToFeatures = join(__dirname, `public/cirs/${codeDepartement}.json`)
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const readStream = createReadStream(pathToFeatures)
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const parseStream = json.createParseStream()
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parseStream.on('data', (pojo) => {
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// Searches through all the geometries from the departement file data...
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gl = new GeoJsonGeometriesLookup(pojo)
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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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// Gets associated code for the country
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const code = gl.getContainers(pos).features[0]?.properties["REF"]
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// If no code is found, send a 404
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if (!code) {
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res.json({
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res.status(404).json({
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"message": "The requested data couldn't be found. Maybe it was moved or the data isn't generated properly."
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}).status(404).end();
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});
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return
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}
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const repFile = fs.readFileSync(path.join(__dirname, `public/reps/${lookupTable[code]}.json`), 'utf-8')
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// If a code is found, send the associated file containing the representant data
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const repFile = readFileSync(join(__dirname, `public/reps/${lookupTable[code]}.json`), 'utf-8')
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res.end(repFile)
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})
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readStream.pipe(parseStream);
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})
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app.listen(PORT, () => console.log(`Server listening on port: ${PORT}`));
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app.listen(port, () => console.log(`Server listening on port: ${port}`));
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/**
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* CUT DOWN CIRCO JSON
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*/
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// const f = fs.readFileSync(path.join(__dirname, 'public/circonscriptions-legislatives.json'), 'utf-8')
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// const f = fs.readFileSync(join(__dirname, 'public/circonscriptions-legislatives.json'), 'utf-8')
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// const data = JSON.parse(f)
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// const features = Object.values(data.features)
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@@ -78,7 +108,7 @@ app.listen(PORT, () => console.log(`Server listening on port: ${PORT}`));
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// "crs": { "type": "name", "properties": { "name": "urn:ogc:def:crs:OGC:1.3:CRS84" } },
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// "features": value
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// }
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// fs.writeFileSync(path.join(__dirname, `public/cirs/${key}.json`), JSON.stringify(output))
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// fs.writeFileSync(join(__dirname, `public/cirs/${key}.json`), JSON.stringify(output))
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// }
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// function groupBy(list, keyGetter) {
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62
package-lock.json
generated
62
package-lock.json
generated
@@ -9,7 +9,9 @@
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"big-json": "^3.2.0",
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"cors": "^2.8.5",
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"express": "^4.18.2",
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"geojson-geometries-lookup": "^0.5.0"
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"geojson-geometries-lookup": "^0.5.0",
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"helmet": "^6.1.5",
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"morgan": "^1.10.0"
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}
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},
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"node_modules/@turf/bbox": {
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@@ -118,6 +120,22 @@
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"node": ">=0.8"
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}
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},
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"node_modules/basic-auth": {
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"version": "2.0.1",
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"resolved": "https://registry.npmjs.org/basic-auth/-/basic-auth-2.0.1.tgz",
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"integrity": "sha512-NF+epuEdnUYVlGuhaxbbq+dvJttwLnGY+YixlXlME5KpQ5W3CnXA5cVTneY3SPbPDRkcjMbifrwmFYcClgOZeg==",
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"dependencies": {
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"safe-buffer": "5.1.2"
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},
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"engines": {
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"node": ">= 0.8"
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}
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},
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"node_modules/basic-auth/node_modules/safe-buffer": {
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"version": "5.1.2",
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"resolved": "https://registry.npmjs.org/safe-buffer/-/safe-buffer-5.1.2.tgz",
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"integrity": "sha512-Gd2UZBJDkXlY7GbJxfsE8/nvKkUEU1G38c1siN6QP6a9PT9MmHB8GnpscSmMJSoF8LOIrt8ud/wPtojys4G6+g=="
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},
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"node_modules/big-json": {
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"version": "3.2.0",
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"resolved": "https://registry.npmjs.org/big-json/-/big-json-3.2.0.tgz",
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@@ -419,6 +437,14 @@
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"url": "https://github.com/sponsors/ljharb"
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}
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},
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"node_modules/helmet": {
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"version": "6.1.5",
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"resolved": "https://registry.npmjs.org/helmet/-/helmet-6.1.5.tgz",
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"integrity": "sha512-UgAvdoG0BhF9vcCh/j0bWtElo2ZHHk6OzC98NLCM6zK03DEVSM0vUAtT7iR+oTo2Mi6sGelAH3tL6B/uUWxV4g==",
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"engines": {
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"node": ">=14.0.0"
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}
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},
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"node_modules/http-errors": {
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"version": "2.0.0",
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"resolved": "https://registry.npmjs.org/http-errors/-/http-errors-2.0.0.tgz",
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@@ -554,6 +580,32 @@
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"node": ">= 0.6"
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}
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},
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"node_modules/morgan": {
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"version": "1.10.0",
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"resolved": "https://registry.npmjs.org/morgan/-/morgan-1.10.0.tgz",
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"integrity": "sha512-AbegBVI4sh6El+1gNwvD5YIck7nSA36weD7xvIxG4in80j/UoK8AEGaWnnz8v1GxonMCltmlNs5ZKbGvl9b1XQ==",
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"dependencies": {
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"basic-auth": "~2.0.1",
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"debug": "2.6.9",
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"depd": "~2.0.0",
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"on-finished": "~2.3.0",
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"on-headers": "~1.0.2"
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},
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"engines": {
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"node": ">= 0.8.0"
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}
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},
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"node_modules/morgan/node_modules/on-finished": {
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"version": "2.3.0",
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"resolved": "https://registry.npmjs.org/on-finished/-/on-finished-2.3.0.tgz",
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"integrity": "sha512-ikqdkGAAyf/X/gPhXGvfgAytDZtDbr+bkNUJ0N9h5MI/dmdgCs3l6hoHrcUv41sRKew3jIwrp4qQDXiK99Utww==",
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"dependencies": {
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"ee-first": "1.1.1"
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},
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"engines": {
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"node": ">= 0.8"
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}
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},
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"node_modules/ms": {
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"version": "2.0.0",
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"resolved": "https://registry.npmjs.org/ms/-/ms-2.0.0.tgz",
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@@ -594,6 +646,14 @@
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"node": ">= 0.8"
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}
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},
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"node_modules/on-headers": {
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"version": "1.0.2",
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"resolved": "https://registry.npmjs.org/on-headers/-/on-headers-1.0.2.tgz",
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"integrity": "sha512-pZAE+FJLoyITytdqK0U5s+FIpjN0JP3OzFi/u8Rx+EV5/W+JTWGXG8xFzevE7AjBfDqHv/8vL8qQsIhHnqRkrA==",
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"engines": {
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"node": ">= 0.8"
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}
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},
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"node_modules/once": {
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"version": "1.4.0",
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"resolved": "https://registry.npmjs.org/once/-/once-1.4.0.tgz",
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@@ -6,7 +6,9 @@
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"big-json": "^3.2.0",
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"cors": "^2.8.5",
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"express": "^4.18.2",
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"geojson-geometries-lookup": "^0.5.0"
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"geojson-geometries-lookup": "^0.5.0",
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"helmet": "^6.1.5",
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"morgan": "^1.10.0"
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},
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"scripts": {
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"start": "node index.js"
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