Some time ago , There have been many disasters in China , Zhengzhou high tech Zone, where we were located at that time, experienced water and power cuts , It's frightening to think of it ！
So I decided to build a complete real-time weather warning project , Mainly used Node.JS And a third-party free interface for aggregating data ,api The management interface is developed by us apipost, There is no particularly advanced technology stack , It's mainly about casting a brick to attract jade , I hope that's helpful ！
One 、 Free weather forecast interface
There are many free weather on the Internet API Interface , What I use here is the interface for aggregating data , The relative stability of large factories .
To apply for the address ：https://www.juhe.cn/docs/api/...
After successful application , A request will be generated in the personal Center key, When sending the interface , Want to use .
Two 、 Use the weather forecast interface and generate program code
According to the usage instructions of aggregated data , We can use the interface debugging tool to debug the interface , We use ApiPost test .
You can see... After the request is successful json The format is as follows ：
{
"reason": " The query is successful !",
"result": {
"city": " zhengzhou ",
"realtime": {
"temperature": "24",
"humidity": "100",
"info": " Light rain ",
"wid": "07",
"direct": " northeasterly wind ",
"power": "2 level ",
"aqi": "32"
},
"future": [
{
"date": "2021-07-23",
"temperature": "23/28℃",
"weather": " Light rain turns to overcast ",
"wid": {
"day": "07",
"night": "02"
},
"direct": " East wind turns north "
},
{
"date": "2021-07-24",
"temperature": "24/31℃",
"weather": " Light rain turns cloudy ",
"wid": {
"day": "07",
"night": "01"
},
"direct": " The northeast wind turns to the east wind "
},
{
"date": "2021-07-25",
"temperature": "23/31℃",
"weather": " cloudy ",
"wid": {
"day": "01",
"night": "01"
},
"direct": " East wind to southeast wind "
},
{
"date": "2021-07-26",
"temperature": "24/31℃",
"weather": " Light rain ",
"wid": {
"day": "07",
"night": "07"
},
"direct": " northeasterly wind "
},
{
"date": "2021-07-27",
"temperature": "23/31℃",
"weather": " Light rain turns sunny ",
"wid": {
"day": "07",
"night": "00"
},
"direct": " Northeast to South "
}
]
},
"error_code": 0
}To this step , We've got the future 7 Days of weather data .
The third step ： utilize nodemailer stay NodeJS Middle mail
nodeJS Of nodemailer For sending mail , useful . Install with the following command to use ：npm install nodemailer
The following is a function I wrote to send mail , The mailbox account and authorization code can be obtained from the corresponding mailbox service provider .
/**
* nodeJS Send E-mail
*
* */
function sendEmail(text){
let nodemailer = require('nodemailer');
let transporter = nodemailer.createTransport({
service:"126", // mailbox
secure:true, // Secure send mode
auth:{
user:"be***[email protected]", // Sender email
pass:"MLQ***PYU"// Authorization code , Get... From a mail service provider ,126 The email address is ：https://help.mail.163.com/faq.do?m=list&categoryID=197
}
})
let mailOptions = {
from:"be***[email protected]", // Sender email , Just keep consistent with the sender's mailbox above
to:"[email protected]", // Recipient email , That is, the mailbox that receives the weather forecast in real time
subject:" Real time weather monitoring system ", // Email subject （ title ）
text:text // Email solicitation
}
transporter.sendMail(mailOptions,(err,data) => {
if(err){
console.log(err);
res.json({status:400,msg:"send fail....."})
}else{
console.log(data);
res.json({status:200,msg:" Mail sent successfully ....."})
}
})
}
// Test email
sendEmail(' It's raining ')
Create a new one weather.js , The content is the above code , adopt node weather.js
You can test email sending .
Send successfully , Email received successfully .
Step four ： stay nodeJS Get the weather regularly and send it to the specified mailbox
Click on ApiPost The generation in the upper right corner NodeJS（Request） Code , Can be generated in nodejs Program code for requesting aggregate weather interface in , We combine setInterval The above requirements can be realized .
All codes are as follows ：
/**
* nodeJS Send E-mail
*
* */
function sendEmail(text){
let nodemailer = require('nodemailer');
let transporter = nodemailer.createTransport({
service:"126", // mailbox
secure:true, // Secure send mode
auth:{
user:"be***[email protected]", // Sender email
pass:"MLQ***PYU"// Authorization code , Get... From a mail service provider ,126 The email address is ：https://help.mail.163.com/faq.do?m=list&categoryID=197
}
})
let mailOptions = {
from:"be***[email protected]", // Sender email , Just keep consistent with the sender's mailbox above
to:"[email protected]", // Recipient email , That is, the mailbox that receives the weather forecast in real time
subject:" Real time weather monitoring system ", // Email subject （ title ）
text:text // Email solicitation
}
transporter.sendMail(mailOptions,(err,data) => {
if(err){
console.log(err);
res.json({status:400,msg:"send fail....."})
}else{
console.log(data);
res.json({status:200,msg:" Mail sent successfully ....."})
}
})
}
setInterval(function(){
var request = require('request');
var headers = {
'User-Agent': 'Apipost client Runtime/+https://www.apipost.cn/'
};
var options = {
url: 'http://apis.juhe.cn/simpleWeather/query?city=%E9%83%91%E5%B7%9E&key=8763efe2a90b025c03e03fef95621cbc',
headers: headers
};
function callback(error, response, body) {
let json = JSON.parse(body);
console.log(json.result)
if (!error && response.statusCode == 200) {
sendEmail(' The future weather in Zhengzhou ' + json.result.future[0].weather)
}
}
request(options, callback);
}, 300000); thus , All the systems have been built . We just need to find a small server to execute node weather.js
Command every 5 Send the weather conditions to the designated mailbox once a minute , Of course , You can also send... As needed .
matters needing attention ：
Because the Chinese code may be in request So the city name is the best encode once （ Right click ）.
Welcome to comment and exchange , understand ApiPost The latest news ~
