105 lines
2.6 KiB
TypeScript
105 lines
2.6 KiB
TypeScript
import dotenv from 'dotenv'
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import express from 'express'
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import type { Request, Response } from 'express'
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import mongo from 'mongodb'
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import path from 'path'
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import { fileURLToPath } from 'url'
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dotenv.config()
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console.log('Starting with parameters:')
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console.table(
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['MONGO_SERVER', 'MONGO_DB'].map((parameter) => {
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return {
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parameter,
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value: process.env[parameter]
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}
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})
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)
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const app = express()
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app.listen(3000, () => {
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console.log('Listening on ' + 3000)
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})
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let db: mongo.Db
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async function connectToMongo() {
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try {
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const mongoUrl = `mongodb://${process.env.MONGO_SERVER}:27017`
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const client = await mongo.MongoClient.connect(mongoUrl)
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db = client.db(process.env.MONGO_DB)
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console.log('Connected succesfully to server')
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} catch (e) {
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console.log(e)
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setTimeout(connectToMongo, 5000)
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}
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}
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connectToMongo()
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function objectIdFromDate(date: Date) {
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return new mongo.ObjectId(Math.floor(date.getTime() / 1000).toString(16) + '0000000000000000')
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}
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app.use(function (req: Request, res: Response, next) {
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res.header('Access-Control-Allow-Origin', '*')
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res.header('Access-Control-Allow-Headers', 'Origin, X-Requested-With, Content-Type, Accept')
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next()
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})
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app.get('/type/:type/startDate/:startDate/endDate/:endDate/sample/:sample', async (req: Request, res: Response) => {
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const startDate = new Date(parseInt(req.params.startDate) * 1000)
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const endDate = new Date(parseInt(req.params.endDate) * 1000)
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const sample = parseInt(req.params.sample)
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const type = req.params.type
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const agg = [
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{
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$match: {
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$and: [
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{ _id: { $gt: objectIdFromDate(startDate), $lt: objectIdFromDate(endDate) } },
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{ type },
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{ value: { $ne: NaN } }
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]
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}
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},
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{
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$group: {
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_id: {
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$toDate: {
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$subtract: [
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{ $toLong: { $toDate: '$_id' } },
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{ $mod: [{ $toLong: { $toDate: '$_id' } }, 1000 * 60 * sample] }
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]
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}
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},
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value: { $avg: '$value' },
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date: { $min: { $toDate: '$_id' } }
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}
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},
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{
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$project: {
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_id: 0,
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value: { $round: ['$value', 1] },
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date: { $toLong: '$date' }
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}
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},
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{ $sort: { date: 1 } }
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]
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try {
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const docs = await db.collection('dht22').aggregate(agg).toArray()
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res.json(docs)
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} catch (err) {
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console.log(err)
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}
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})
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const __filename = fileURLToPath(import.meta.url)
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const __dirname = path.dirname(__filename)
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app.use(express.static(path.join(__dirname, '../dist')))
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app.get('/*', function (req: Request, res: Response) {
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res.sendFile(path.join(__dirname, '../dist/index.html'))
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})
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