This content originally appeared on DEV Community and was authored by Rohit Sharma
Hello everyone, today we'll be going to create a weather app with help of HTML,CSS and Javascript. For this we'll be using open weather map api. Just follow the basic steps to get your free API ID.
HTML
We need city name as a input from user and two button.
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>WeatHere</title>
<link rel="stylesheet" href="style.css">
</head>
<body>
<div class="container">
<h1>Weather All-Around</h1>
<div id="input">
<input type="text" class="cityname">
<input type="submit" value="Check Weather" class="btn">
<button class="locBtn"><img src="https://img.icons8.com/external-kmg-design-outline-color-kmg-design/32/000000/external-pin-map-and-navigation-kmg-design-outline-color-kmg-design-2.png"/></button>
</div>
<div id="output">
</div>
</div>
<script src="main.js"></script>
</body>
</html>
CSS
You can style this as your wish.
Javascript
You should check the documentation of open weather API for more clarity.
The basic structure url looks like this
https://api.openweathermap.org/data/2.5/weather?q=cityName&units=metric&appid=1ebc5861bba83e0214cd8df3b995ffca
So, every time we have to change the value of cityName.
In case, we don't know the city name then we can use our device location to get weather update. For this the url looks like this
https://api.openweathermap.org/data/2.5/weather?lat=latitude&lon=longitude&units=metric&appid=1ebc5861bba83e0214cd8df3b995ffca.
So, every time we have to change the value of latitude and longitude for this we use Geolocation API
So, now we declare the variables in our program
let city = document.querySelector('.cityname');
let btn = document.querySelector('.btn');
let locBtn = document.querySelector('.locBtn');
let output = document.getElementById('output');
Now add addEventListener to btn. We listen for a click event and on click we will call checkWeather() function.
btn.addEventListener('click',checkWeather);
function checkWeather(){
fetch('https://api.openweathermap.org/data/2.5/weather?q='+city.value+'&units=metric&appid=1ebc5861bba83e0214cd8df3b995ffca')
.then(response => response.json())
.then(data =>{
console.log(data);
output.innerHTML = data['main']['temp']+'°C'+`<br>`+data['weather'][0]['description'];
output.style.cssText ='background:#c3ffe5; text-align:center; width:150px;'
})
.catch(err=>alert("error"));
}
If user want to check weather using his current location. We have to add addEventListener to locBtn and on clicking the button we call another function showPosition()
locBtn.addEventListener('click',showPosition);
function showPosition() {
if(navigator.geolocation) {
navigator.geolocation.getCurrentPosition(function(position) {
var lat = position.coords.latitude;
var lon = position.coords.longitude;
// document.getElementById("lat").innerHTML = lat;
// document.getElementById("lon").innerHTML = lon;
fetch('https://api.openweathermap.org/data/2.5/weather?lat='+lat+'&lon='+lon+'&units=metric&appid=1ebc5861bba83e0214cd8df3b995ffca')
.then(response => response.json())
.then(data =>{
output.innerHTML =`<h4>`+ data['main']['temp']+'°C and Location: ' +data['name']+`<br>`+data['weather'][0]['description']+`</h4>`;
output.style.cssText ='background:#c3ffe5; text-align:center; width:150px;'
})
.catch(err=>alert("error"));
});
} else {
alert("Sorry, your browser does not support HTML5 geolocation.");
}
}
Hope this tutorial is helpful for you
If you wish to support my work buy me a coffee
This content originally appeared on DEV Community and was authored by Rohit Sharma
Rohit Sharma | Sciencx (2022-02-10T09:55:12+00:00) Weather App using HTML,CSS and JS. Retrieved from https://www.scien.cx/2022/02/10/weather-app-using-htmlcss-and-js/
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