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modified: README.md
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‎index.copy.js‎

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import * as dotenv from 'dotenv';
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let WEATHERBIT_KEY = "";
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let WEATHERBIT_URI = "";
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dotenv.config();
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// dotenv.config()
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import request from 'request';
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import express from 'express';
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import bodyParser from 'body-parser';
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import {encryptAES, decryptAES} from './crypto.js';
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import awssdk from 'aws-sdk';
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if (process.env.NODE_ENV == 'production') {
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// Code for AWS Production Mode
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getAwsSecrets();
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} else if (process.env.NODE_ENV === 'awsdeploy') {
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WEATHERBIT_URI="https://api.weatherbit.io/v2.0/";
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WEATHERBIT_KEY="U2FsdGVkX18HMV5UUT9rJN76hOtIHDw1bH0beQYWH8a6E7uzKqskdgHvc6Nq2lO6O+GAb2vrcL+X8ZDqcGPuLw==";
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console.log("AWSDEPLOY mode!");
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} else {
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// Code for Development Mode
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WEATHERBIT_KEY = process.env.WEATHERBIT_KEY;
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WEATHERBIT_URI = process.env.WEATHERBIT_URI;
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}
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// Create network routing
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const app = express();
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// EJS is accessed by default in the views directory.
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app.set('view engine', 'ejs');
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// Allow access to 'public' folder where resources are available to this app
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app.use(express.static('public'));
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app.use(bodyParser.urlencoded({ extended: true }));
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// get the locale from the client-side via the ejs form
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app.get('/', (req, res) => {
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// console.dir(req.params);
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// console.dir(req.body);
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let apikey = encryptAES(WEATHERBIT_KEY);
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res.render('index', {xkey: apikey});
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})
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app.get('/weatherbit', (req, res) => {
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// console.log('render get weatherbit:');
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// console.dir(req.params)
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// console.dir(req.body);
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res.render('pages/weatherbit');
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})
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// Posting data to the client-side requires two API calls.
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// We implement the Promise.all() below to call and wait for all data to come back.
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app.post('/weatherbit', (req, res) => {
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let city = req.body.locale;
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let coords = [ req.body.lat, req.body.lng ];
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let promisedData;
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// console.log(coords[0], coords[1]);
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if (city.length > 0) {
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// get data by address
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promisedData = gatherWeatheBits(city);
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} else if (typeof(coords[0]) === "string") {
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// get data by latitude/longitude
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promisedData = gatherWeatheBits(coords);
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}
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promisedData.then( (data) => {
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res.render('pages/weatherbit', data);
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})
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});
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/*
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* function get AWS environment variables
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*/
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function getAwsSecrets() {
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var AWS = awssdk,
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region = "us-east-1",
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secretName = "techrolemi_weather_secret",
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secret,
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decodedBinarySecret;
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// Create a Secrets Manager client
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var client = new AWS.SecretsManager({
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region: region
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});
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client.getSecretValue({SecretId: secretName}, function(err, data) {
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if (err) {
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if (err.code === 'DecryptionFailureException')
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// Secrets Manager can't decrypt the protected secret text using the provided KMS key.
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// Deal with the exception here, and/or rethrow at your discretion.
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throw err;
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else if (err.code === 'InternalServiceErrorException')
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// An error occurred on the server side.
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// Deal with the exception here, and/or rethrow at your discretion.
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throw err;
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else if (err.code === 'InvalidParameterException')
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// You provided an invalid value for a parameter.
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// Deal with the exception here, and/or rethrow at your discretion.
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throw err;
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else if (err.code === 'InvalidRequestException')
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// You provided a parameter value that is not valid for the current state of the resource.
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// Deal with the exception here, and/or rethrow at your discretion.
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throw err;
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else if (err.code === 'ResourceNotFoundException')
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// We can't find the resource that you asked for.
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// Deal with the exception here, and/or rethrow at your discretion.
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throw err;
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}
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else {
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// Decrypts secret using the associated KMS key.
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// Depending on whether the secret is a string or binary, one of these fields will be populated.
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// console.log(data);
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if ('SecretString' in data) {
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secret = data.SecretString;
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var aesParams = JSON.parse(secret);
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// console.log(data.Name + " : " + data.SecretString);
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Object.entries(aesParams).forEach((entry) => {
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var [key, value] = entry;
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if (`${key}` === "WEATHERBIT_KEY") {
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WEATHERBIT_KEY = `${value}`;
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console.log("WEATHERBIT_KEY="+ WEATHERBIT_KEY);
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}
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else if (`${key}` === "WEATHERBIT_URI") {
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WEATHERBIT_URI = `${value}`;
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console.log("WEATHERBIT_URI="+WEATHERBIT_URI);
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}
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});
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} else {
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let buff = new Buffer(data.SecretBinary, 'base64');
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decodedBinarySecret = buff.toString('ascii');
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console.log("decodedBinarySecret: " + decodedBinarySecret);
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}
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}
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})
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}
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/*
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* Function retrieves weatherbit.io current conditions.
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* Used in the Promise call below.
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*/
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function getWeatherBitCurrentConditions(city){
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return new Promise(resolve => {
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if (Array.isArray(city) === true && typeof(city[0]) === "string") {
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city = "&lat=" + city[0] + "&lon=" + city[1];
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} else {
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city = "&city=" + city;
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}
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var Xcode = "";
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if (process.env.NODE_ENV === 'awsdeploy') {
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Xcode = JSON.parse(decryptAES(WEATHERBIT_KEY)).text;
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} else {
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Xcode = WEATHERBIT_KEY;
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}
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setTimeout(() => {
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let uriWeatherBitStr = `${WEATHERBIT_URI}current?units=I${city}&key=${Xcode}`;
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let retCode;
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if (WEATHERBIT_URI.length === 0) {
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console.log('Failed to get aws secrets!');
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return null;
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} else {
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console.log(uriWeatherBitStr);
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}
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try {
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request(uriWeatherBitStr, async function (err, response, body) {
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console.log(response.statusCode);
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if (response.statusCode == 429) {
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console.log("WARNING: You have exceeded your API call limit with weatherbit.io!");
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resolve(null);
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}
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if (response.statusCode == 200) {
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let weather = await JSON.parse(body).data[0];
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resolve(weather);
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} else {
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resolve(null);
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}
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})
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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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}, 300);
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}
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/*
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* Function retrieves weatherbit.io daily forecast.
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* Used in the Promise call below.
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*/
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function getWeatherBitDailyForecast(city){
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return new Promise(resolve => {
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if (Array.isArray(city) === true && typeof(city[0]) === "string") {
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city = "&lat=" + city[0] + "&lon=" + city[1];
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} else {
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city = "&city=" + city;
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}
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var Xcode = "";
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if (process.env.NODE_ENV === 'awsdeploy') {
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Xcode = JSON.parse(decryptAES(WEATHERBIT_KEY)).text;
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} else {
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Xcode = WEATHERBIT_KEY;
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}
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setTimeout(() => {
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let uriWeatherBitStr = `${WEATHERBIT_URI}forecast/daily?units=I${city}&key=${Xcode}`;
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let retCode;
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// console.log(uriWeatherBitStr);
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try {
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request(uriWeatherBitStr, async function (err, response, body) {
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console.log(response.statusCode);
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if (response.statusCode == 429) {
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console.log("WARNING: You have exceeded your API call limit with weatherbit.io!");
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resolve(null);
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}
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if (response.statusCode == 200) {
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retCode = await JSON.parse(body);
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resolve(retCode);
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} else {
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resolve(null);
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}
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})
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} catch (err) {
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console.log(err);
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}
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}, 500);
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})
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}
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function getWeatherBitAirQuality(city) {
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/* API_URL = https://api.weatherbit.io/v2.0/history/airquality?city=${city}&start_date=2022-10-03&end_date=2022-10-04&tz=local&key=${apikey} */
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return new Promise(resolve => {
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if (Array.isArray(city) === true && typeof(city[0]) === "string") {
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city = "?lat=" + city[0] + "&lon=" + city[1];
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} else {
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city = "?city=" + city;
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}
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var Xcode = "";
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if (process.env.NODE_ENV === 'awsdeploy') {
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Xcode = JSON.parse(decryptAES(WEATHERBIT_KEY)).text;
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} else {
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Xcode = WEATHERBIT_KEY;
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}
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setTimeout(() => {
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let e = new Date().toISOString().slice(0, 16).replace('T', ' ')
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let enddate = e.split(' ')[0];
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// add 1 day to enddate
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let s = new Date(enddate);
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s.setDate(s.getDate() - 1);
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s = s.toISOString().slice(0, 16).replace('T', ' ');
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let startdate = s.split(' ')[0];
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let retCode;
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let uriWeatherBitAPIStr = `${WEATHERBIT_URI}history/airquality${city}&start_date=${startdate}&end_date=${enddate}&key=${Xcode}`;
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// console.log(uriWeatherBitAPIStr);
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try {
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request(uriWeatherBitAPIStr, async function (err, response, body) {
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console.log(response.statusCode);
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if (response.statusCode == 429) {
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console.log("WARNING: You have exceeded your API call limit with weatherbit.io!");
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resolve(null);
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}
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if (response.statusCode == 200) {
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retCode = await JSON.parse(body);
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resolve(retCode);
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} else {
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resolve(null);
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}
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})
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} catch (err) {
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console.log(err);
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}
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}, 300);
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})
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}
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/*
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* Return multiple promises consists of currentConditions and dailyForecast data.
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*/
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async function gatherWeatheBits(city) {
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const [dailyForecast, currentConditions, airQuality,] = await Promise.all([
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getWeatherBitDailyForecast(city),
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getWeatherBitCurrentConditions(city),
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getWeatherBitAirQuality(city)
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]);
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// Make sure all promisses fulfilled.
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if (dailyForecast !== null && airQuality !== null && currentConditions !== null ) {
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let currentHour = new Date().getHours();
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// combine 3 promises into a huge rendering passing paramters:
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let combinedData = { locale: city, curStatus: 200, curData: currentConditions, foreStatus: 200, foreData: dailyForecast, airqStatus: 200, airqData: airQuality.data[currentHour], error: null };
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return combinedData;
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} else {
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return { locale: city, curStatus: 400, curData: null, foreStatus: 400, foreData: null, airqStatus: 400, airqData: null, error: null };
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}
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}
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// about page
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app.get('/about', function(req, res) {
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res.render('pages/about');
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});
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let port = process.env.PORT || 3000;
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// creating a server that is listening on ${port} for connections.
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app.listen(port, () => {
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console.log(`TechRolEmi weather report is listening on port ${port}`);
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});
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