typescript server api

server/index.ts

@@ -1,22 +1,29 @@
-/* eslint-env node */
-require('dotenv').config()
-const express = require('express')
-const app = express()
-const path = require('path')
-const mongo = require('mongodb')
-const MongoClient = mongo.MongoClient
+import dotenv from 'dotenv'
+import express from 'express'
+import type { Request, Response } from 'express'
+import mongo from 'mongodb'
+import path from 'path'
+import { fileURLToPath } from 'url'
+
+dotenv.config()
+
 console.log('Starting with parameters:')
 const parameters = ['PORT', 'MONGO_SERVER', 'MONGO_DB']
 parameters.forEach((parameter) => console.log(`${parameter}=${process.env[parameter]}`))
+
+const app = express()
+
 app.listen(process.env.PORT, () => {
   console.log('Listening on ' + process.env.PORT)
 })
 
-let db
+let db: mongo.Db
+const mongoClient = mongo.MongoClient
+
 async function connectToMongo() {
   try {
     const mongoUrl = `mongodb://${process.env.MONGO_SERVER}:27017`
-    const client = await MongoClient.connect(mongoUrl, { useNewUrlParser: true })
+    const client = await mongoClient.connect(mongoUrl)
     db = client.db(process.env.MONGO_DB)
     console.log('Connected succesfully to server')
   } catch (e) {
@@ -27,15 +34,19 @@ async function connectToMongo() {
 
 connectToMongo()
 
-app.use(function (req, res, next) {
+function objectIdFromDate(date: Date) {
+  return new mongo.ObjectId(Math.floor(date.getTime() / 1000).toString(16) + '0000000000000000')
+}
+
+app.use(function (req: Request, res: Response, next) {
   res.header('Access-Control-Allow-Origin', '*')
   res.header('Access-Control-Allow-Headers', 'Origin, X-Requested-With, Content-Type, Accept')
   next()
 })
 
-app.get('/type/:type/startDate/:startDate/endDate/:endDate/sample/:sample', async (req, res) => {
-  const startDate = new Date(req.params.startDate * 1000)
-  const endDate = new Date(req.params.endDate * 1000)
+app.get('/type/:type/startDate/:startDate/endDate/:endDate/sample/:sample', async (req: Request, res: Response) => {
+  const startDate = new Date(parseInt(req.params.startDate) * 1000)
+  const endDate = new Date(parseInt(req.params.endDate) * 1000)
   const sample = parseInt(req.params.sample)
   const type = req.params.type
   const agg = [
@@ -79,45 +90,11 @@ app.get('/type/:type/startDate/:startDate/endDate/:endDate/sample/:sample', asyn
   }
 })
 
-// app.get('/v0/type/:type/startDate/:startDate/endDate/:endDate/sample/:sample', async (req, res) => {
-//   const startDate = new Date(req.params.startDate * 1000)
-//   const endDate = new Date(req.params.endDate * 1000)
-//   const sample = parseInt(req.params.sample)
-//   const query = {
-//     _id: {
-//       $gt: objectIdFromDate(startDate),
-//       $lt: objectIdFromDate(endDate)
-//     },
-//     type: req.params.type,
-//     value: {
-//       $ne: NaN
-//     }
-//   }
-//   try {
-//     const docs = await db.collection('dht22').find(query).toArray()
-//     const sampledDocs = docs
-//       .filter((value, index) => index % sample === 0)
-//       .map((doc) => {
-//         return { ...doc, date: dateFromObjectId(doc._id) }
-//       })
-//     res.json(sampledDocs)
-//   } catch (err) {
-//     console.log(err)
-//   }
-// })
-
-function objectIdFromDate(date) {
-  return mongo.ObjectId(Math.floor(date.getTime() / 1000).toString(16) + '0000000000000000')
-}
-
-// function dateFromObjectId(objectId) {
-//   return Math.floor(mongo.ObjectId(objectId).getTimestamp().getTime() / 1000)
-// }
+const __filename = fileURLToPath(import.meta.url)
+const __dirname = path.dirname(__filename)
 
 app.use(express.static(path.join(__dirname, '../dist')))
 
-app.get('/*', function (req, res) {
+app.get('/*', function (req: Request, res: Response) {
   res.sendFile(path.join(__dirname, '../dist/index.html'))
 })
-
-module.exports = app

server/tsconfig.json

@@ -0,0 +1,12 @@
+{
+  "compilerOptions": {
+    /* Visit https://aka.ms/tsconfig to read more about this file */
+    "target": "es2016",                                  /* Set the JavaScript language version for emitted JavaScript and include compatible library declarations. */
+    "module": "ESNext",                                /* Specify what module code is generated. */
+    "moduleResolution": "NodeNext",                     /* Specify how TypeScript looks up a file from a given module specifier. */
+    "esModuleInterop": true,                             /* Emit additional JavaScript to ease support for importing CommonJS modules. This enables 'allowSyntheticDefaultImports' for type compatibility. */
+    "forceConsistentCasingInFileNames": true,            /* Ensure that casing is correct in imports. */
+    "strict": true,                                      /* Enable all strict type-checking options. */
+    "skipLibCheck": true                                 /* Skip type checking all .d.ts files. */
+  }
+}