Implemented Endpoints for usage of google place api
This commit is contained in:
Timo John
parent
49d207473b
commit
bf0a71c63c
@ -4,4 +4,5 @@ DB_HOST=lhinderberger.dev
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DB_USER=root
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DB_PASSWORD=devtest
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DB_PORT=3306
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DATABASE=travopti
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DATABASE=travopti
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GOOGLE_CLOUD_APIS=AIzaSyCeMBLfpqTp0IVB7Xipx6ekRQFUBjPacQc
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275
backend/app.js
275
backend/app.js
@ -1,275 +0,0 @@
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const express = require('express')
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const moment = require('moment')
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const _ = require('lodash')
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const score = require('./util/score')
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const transformer = require('./util/transformer')
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const base = require('./util/base64')
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const app = express()
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const port = 3000
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//const multiplier_temp = 5
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const multiplier = {
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temperature_mean_max: 5,
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precipitation: 3.5,
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raindays: 3,
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sunhours: 2.5,
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}
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const samplePresets = [
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{
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id: 29837,
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parameter: "temperature",
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label: "warm",
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values: [22, 25]
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}
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]
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app.get('/', (req, res) => res.send('Hello Timo!'))
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app.get('/v1/regions', (req, res) => getAllRegions().then(x => res.json({ data: x })))
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app.get('/v1/presets', (req, res) => res.json({ data: samplePresets }))
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app.get('/v1/search', searchHandler)
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app.get('/v1/climate/update', climateUpdateHandler)
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app.listen(port, () => console.log(`Travopti backend listening at http://localhost:${port}`))
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function climateUpdateHandler(req, res) {
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let parameter = []
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if (req.query.startDate) parameter.push(req.query.startDate)
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if (req.query.endDate) parameter.push(req.query.endDate)
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climate.update(...parameter).then(x => {
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res.send(x)
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}).catch(e => {
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let result = {
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message: 'error during update process. check backend logs.',
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error: e
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}
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res.send(result)
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}
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)
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}
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function searchHandler(req, res) {
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let response = {}
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response.meta = {
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params: req.params,
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query: req.query,
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headers: req.headers
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}
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let q = req.query.q ? base.base64ToObj(req.query.q) : req.query
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console.log('Q:', q)
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let queryObj = {}
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if (q.temperature) queryObj['temperature_mean_max'] = q.temperature
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if (q.precipitation) queryObj['precipitation'] = q.precipitation
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if (q.raindays) queryObj['raindays'] = q.raindays
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if (q.sunhours) queryObj['sunhours'] = q.sunhours
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scoreAndSearch(q.from, q.to, queryObj).then(searchResults => {
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response.data = searchResults
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res.json(response)
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}).catch(e => {
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console.log(e)
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res.json(e.message)
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})
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}
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async function scoreAndSearch(from, to, queries) {
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// TODO break funtion into parts when implementing non-climate queries and modularize (new file)
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console.log('search')
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// get Min and Max values for each Parameter
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const minMax = await getClimateMinMax()
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// randomize if empty queries
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if (_.isEmpty(queries)) {
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let t = _.round(_.random(minMax.min.temperature_mean_max, minMax.max.temperature_mean_max - 5), 0)
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let p = _.round(_.random(minMax.min.precipitation, minMax.max.precipitation - 50), 0)
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let r = _.round(_.random(minMax.min.raindays, minMax.max.raindays - 5), 0)
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let s = _.round(_.random(minMax.min.sunhours, minMax.max.sunhours - 50), 0)
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queries.temperature_mean_max = `${t},${t + 5}`
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queries.precipitation = `${p},${p + 50}`
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queries.raindays = `${r},${r + 5}`
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queries.sunhours = `${s},${s + 50}`
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}
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queries = oldToNewQuerySyntax(queries)
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console.log(queries)
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// TODO simplify and remove support for old query syntaax
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let monthFrom = 0
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let monthTo = 0
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let dayFrom = 0
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let dayTo = 0
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if (_.isNumber(from) && _.isNumber(to)) {
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let dateFrom = moment(from).toDate()
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let dateTo = moment(to).toDate()
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monthFrom = dateFrom.getMonth()
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monthTo = dateTo.getMonth()
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dayFrom = dateFrom.getDay()
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dayTo = dateTo.getDay()
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if (moment(dateFrom).add(23, 'hours').isAfter(moment(dateTo))) throw new Error("ERR: 'to' must be at least one day after 'from'.")
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} else {
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// to still support old query syntax
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let re = /([12]\d{3}-(0[1-9]|1[0-2])-(0[1-9]|[12]\d|3[01]))/i;
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monthFrom = Number(from.split("-")[1])
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monthTo = Number(to.split("-")[1])
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dayFrom = Number(from.split("-")[2])
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dayTo = Number(to.split("-")[2])
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if (!from.match(re) || !to.match(re)) throw new Error("ERR: invalid parameter:", from, to)
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if (moment(from, 'YYYY-MM-DD').add(23, 'hours').isAfter(moment(to, 'YYYY-MM-DD'))) throw new Error("ERR: 'to' must be at least one day after 'from'.")
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}
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// -- Prepare search --
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// to calculate average if traveldates are in more than one month
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let travelPeriods = []
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if (monthFrom === monthTo) {
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let element = {
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month: monthFrom,
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days: dayTo - dayFrom
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}
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travelPeriods.push(element)
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} else {
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for (let index = monthFrom; index <= monthTo; index++) {
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let element = {}
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if (index === monthFrom) {
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element = {
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month: index,
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days: 32 - dayFrom
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}
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} else if (index === monthTo) {
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element = {
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month: index,
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days: dayTo
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}
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} else {
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element = {
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month: index,
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days: 30
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}
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}
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travelPeriods.push(element)
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}
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}
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// calculate detail scores
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let detailScores = await Promise.all(travelPeriods.map(async period => {
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period.climate = await getAllRegionsWithClimatePerMonth(period.month)
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period.scores = {}
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Object.entries(queries).forEach(([key, value]) => {
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// console.log('key',key)
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// console.log('val', value)
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period.scores[key] = calculateScores(key, period.climate, value[0], value[1], minMax)
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});
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return period
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}));
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// calculate ratio and transform into target object
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return {
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results: transformer.transform(detailScores),
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debug: {
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detailScores: detailScores,
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minMax: minMax
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}
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}
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}
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function calculateScores(type, regionDataRows, searchLowParam, searchMaxParam, minMax) {
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console.log('calculateScores for', type)
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let result = regionDataRows.map(x => {
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const sc = Math.round(score.calculateScoreRange(minMax.min[type], minMax.max[type], multiplier[type], x[type], searchLowParam, searchMaxParam) * 100) / 100
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return {
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region_id: x.region_id,
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type: type,
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value: x[type],
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score: x[type] === null ? null : sc
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}
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})
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return result
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}
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async function getClimateMinMax() {
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console.log('getClimateMinMax')
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const sqlMin = `SELECT
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MIN(temperature_mean) AS temperature_mean,
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MIN(temperature_mean_min) AS temperature_mean_min,
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MIN(temperature_mean_max) AS temperature_mean_max,
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MIN(precipitation) AS precipitation,
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MIN(raindays) AS raindays,
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MIN(sunshine) AS sunhours
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FROM region_climate`
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const sqlMax = `SELECT
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MAX(temperature_mean) AS temperature_mean,
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MAX(temperature_mean_min) AS temperature_mean_min,
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MAX(temperature_mean_max) AS temperature_mean_max,
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MAX(precipitation) AS precipitation,
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MAX(raindays) AS raindays,
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MAX(sunshine) AS sunhours
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FROM region_climate`
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const [qResMin, qResMax] = await Promise.all([getQueryRows(sqlMin), getQueryRows(sqlMax)])
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//console.log(qResMin)
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return { min: qResMin[0], max: qResMax[0] }
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}
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async function getQueryRows(sql) {
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//console.log('getQueryRows')
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const [rows, fields] = await db.execute(sql)
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return rows
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}
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function getAllRegions() {
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const sql = `SELECT
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regions.id AS region_id,
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regions.region AS name,
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regions.country_id AS country_id,
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countries.country AS country,
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regions.meteostat_id AS meteostat_id
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FROM regions
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JOIN countries
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ON regions.country_id = countries.id`
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return getQueryRows(sql)
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}
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function getClimatePerRegionAndMonth(regionId, month) {
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console.log('getClimatePerRegionAndMonth')
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const sql = `SELECT region_id, AVG(temperature_mean), AVG(temperature_mean_min), AVG(temperature_mean_max), AVG(precipitation), AVG(sunshine) FROM region_climate WHERE month = ${month} AND region_id = ${regionId}`
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return getQueryRows(sql)
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}
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function getAllRegionsWithClimatePerMonth(month) {
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console.log('getAllRegionsWithClimatePerMonth')
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const sql = `SELECT
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region_climate.region_id AS region_id,
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regions.country_id AS country_id,
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regions.region AS name,
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ROUND(AVG(region_climate.temperature_mean), 1) AS temperature_mean,
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ROUND(AVG(region_climate.temperature_mean_min), 1) AS temperature_mean_min,
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ROUND(AVG(region_climate.temperature_mean_max), 1) AS temperature_mean_max,
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ROUND(AVG(region_climate.precipitation), 1) AS precipitation,
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ROUND(AVG(region_climate.raindays), 1) AS raindays,
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ROUND(AVG(region_climate.sunshine), 1) AS sunhours
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FROM region_climate JOIN regions ON region_climate.region_id = regions.id WHERE region_climate.month = ${month} GROUP BY region_id`
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return getQueryRows(sql)
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}
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function oldToNewQuerySyntax(queries) {
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let res = {}
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try {
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if (queries.temperature_mean_max) res.temperature_mean_max = [queries.temperature_mean_max.split(',')[0], queries.temperature_mean_max.split(',')[1]]
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if (queries.precipitation) res.precipitation = [queries.precipitation.split(',')[0], queries.precipitation.split(',')[1]]
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if (queries.raindays) res.raindays = [queries.raindays.split(',')[0], queries.raindays.split(',')[1]]
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if (queries.sunhours) res.sunhours = [queries.sunhours.split(',')[0], queries.sunhours.split(',')[1]]
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console.log('queries successfully transformed');
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} catch (error) {
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console.log('queries are ok');
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return queries
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}
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return res
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}
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@ -15,6 +15,7 @@ const search = require("./routes/search");
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const regions = require("./routes/regions");
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const countries = require("./routes/countries");
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const climate = require("./routes/climate");
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const places = require("./routes/place");
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const app = express();
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@ -33,6 +34,7 @@ const app = express();
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app.use(regions(dbConn));
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app.use(countries(dbConn));
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app.use(climate(dbConn));
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app.use(places(dbConn));
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app.use((err, req, res, next) => {
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// 500
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18
backend/models/getPlace.js
Normal file
18
backend/models/getPlace.js
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@ -0,0 +1,18 @@
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const axios = require("axios")
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const getPlacePhoto = require("./getPlacePhoto.js")
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module.exports = async (q) => {
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const res = await axios.get(
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`https://maps.googleapis.com/maps/api/place/findplacefromtext/json?inputtype=textquery&fields=photos,formatted_address,name,rating,opening_hours,geometry&input=${q}&key=${process.env.GOOGLE_CLOUD_APIS}`)
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console.log(res.data)
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// Photo url is not returned since it overuses Google Place API
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/*
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for (let candidate of res.data.candidates) {
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for (let photo of candidate.photos) {
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photo.url = await getPlacePhoto(photo.photo_reference)
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}
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}
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*/
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return res.data
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}
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19
backend/models/getPlaceNearby.js
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19
backend/models/getPlaceNearby.js
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@ -0,0 +1,19 @@
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const axios = require("axios")
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const getPlacePhoto = require("./getPlacePhoto.js")
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const radius = 20000
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const rankby = "prominence"
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module.exports = async (lat, lng) => {
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const res = await axios.get(
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`https://maps.googleapis.com/maps/api/place/nearbysearch/json?location=${lat},${lng}&radius=${radius}&rankby=${rankby}&key=${process.env.GOOGLE_CLOUD_APIS}`
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);
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// Photo url is not returned since it overuses Google Place API
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/*
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for (let result of res.data.results) {
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for (let photo of result.photos) {
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photo.url = await getPlacePhoto(photo.photo_reference)
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}
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}*/
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return res.data
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}
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10
backend/models/getPlacePhoto.js
Normal file
10
backend/models/getPlacePhoto.js
Normal file
@ -0,0 +1,10 @@
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const axios = require("axios")
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module.exports = async (photoref) => {
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const res = await axios.get(
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`https://maps.googleapis.com/maps/api/place/photo?photoreference=${photoref}&maxwidth=1600&key=${process.env.GOOGLE_CLOUD_APIS}`
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);
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const url = res.request.res.responseUrl
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return url
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}
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@ -2,7 +2,7 @@
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"name": "cc-data-backend",
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"version": "1.0.0",
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"description": "",
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"main": "app.js",
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"main": "index.js",
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"scripts": {
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"start": "nodemon ./index.js"
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},
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23
backend/routes/place.js
Normal file
23
backend/routes/place.js
Normal file
@ -0,0 +1,23 @@
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const router = require("express").Router()
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const getPlace = require("../models/getPlace.js")
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const getPlaceNearby = require("../models/getPlaceNearby.js")
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const getPlacePhoto = require("../models/getPlacePhoto.js")
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module.exports = dbConn => {
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router.get("/api/v1/place", async (req, res) => {
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const place = await getPlace(req.query.q)
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res.json(place)
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});
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router.get("/api/v1/place/nearby", async (req, res) => {
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const place = await getPlaceNearby(req.query.lat, req.query.lng)
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res.json(place)
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});
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router.get("/api/v1/place/photo", async (req, res) => {
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const photo = await getPlacePhoto(req.query.photoref)
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res.json(photo)
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});
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return router;
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};
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