This URL returns JSON:
{
query: {
count: 1,
created: "2015-12-09T17:12:09Z",
lang: "en-US",
diagnostics: {},
...
}
}
I tried this, and it didn't work:
responseObj = readJsonFromUrl('http://query.yahooapis.com/v1/publ...');
var count = responseObj.query.count;
console.log(count) // should be 1
How can I get a JavaScript object from this URL's JSON response?
This question is related to
javascript
json
ES8(2017) try
obj = await (await fetch(url)).json();
async function load() {_x000D_
let url = 'https://my-json-server.typicode.com/typicode/demo/db';_x000D_
let obj = await (await fetch(url)).json();_x000D_
console.log(obj);_x000D_
}_x000D_
_x000D_
load();
_x000D_
you can handle errors by try-catch
async function load() {_x000D_
let url = 'http://query.yahooapis.com/v1/publ...';_x000D_
let obj = null;_x000D_
_x000D_
try {_x000D_
obj = await (await fetch(url)).json();_x000D_
} catch(e) {_x000D_
console.log('error');_x000D_
}_x000D_
_x000D_
console.log(obj);_x000D_
}_x000D_
_x000D_
load();
_x000D_
//Resolved
const fetchPromise1 = fetch(url);
fetchPromise1.then(response => {
console.log(response);
});
//Pending
const fetchPromise = fetch(url);
console.log(fetchPromise);
Axios is a promise based HTTP client for the browser and node.js.
It offers automatic transforms for JSON data and it's the official recommendation from the Vue.js team when migrating from the 1.0 version which included a REST client by default.
Performing a
GET
request// Make a request for a user with a given ID axios.get('http://query.yahooapis.com/v1/publ...') .then(function (response) { console.log(response); }) .catch(function (error) { console.log(error); });
Or even just axios(url)
is enough as a GET
request is the default.
async function fetchDataAsync() {_x000D_
const response = await fetch('paste URL');_x000D_
console.log(await response.json())_x000D_
_x000D_
}_x000D_
_x000D_
_x000D_
fetchDataAsync();
_x000D_
You can access JSON data by using fetch() in JavaScript
Update url parameter of fetch() with your url.
fetch(url)
.then(function(response){
return response.json();
})
.then(function(data){
console.log(data);
})
Hope It helps, it worked perfectly for me.
Define a function like:
fetchRestaurants(callback) {
fetch(`http://www.restaurants.com`)
.then(response => response.json())
.then(json => callback(null, json.restaurants))
.catch(error => callback(error, null))
}
Then use it like this:
fetchRestaurants((error, restaurants) => {
if (error)
console.log(error)
else
console.log(restaurants[0])
});
If you want to do it in plain javascript, you can define a function like this:
var getJSON = function(url, callback) {
var xhr = new XMLHttpRequest();
xhr.open('GET', url, true);
xhr.responseType = 'json';
xhr.onload = function() {
var status = xhr.status;
if (status === 200) {
callback(null, xhr.response);
} else {
callback(status, xhr.response);
}
};
xhr.send();
};
And use it like this:
getJSON('http://query.yahooapis.com/v1/public/yql?q=select%20%2a%20from%20yahoo.finance.quotes%20WHERE%20symbol%3D%27WRC%27&format=json&diagnostics=true&env=store://datatables.org/alltableswithkeys&callback',
function(err, data) {
if (err !== null) {
alert('Something went wrong: ' + err);
} else {
alert('Your query count: ' + data.query.count);
}
});
Note that data
is an object, so you can access its attributes without having to parse it.
this morning, i also had the same doubt and now its cleared i had just used JSON with 'open-weather-map'(https://openweathermap.org/) api and got data from the URL in the index.html file, the code looks like this:-
//got location_x000D_
var x = document.getElementById("demo");_x000D_
if (navigator.geolocation) {_x000D_
navigator.geolocation.getCurrentPosition(weatherdata);_x000D_
} else { _x000D_
x.innerHTML = "Geolocation is not supported by this browser.";_x000D_
}_x000D_
//fetch openweather map url with api key_x000D_
function weatherdata(position) {_x000D_
//put corrdinates to get weather data of that location_x000D_
fetch('https://api.openweathermap.org/data/2.5/weather?lat='+position.coords.latitude+'&lon='+position.coords.longitude+'&appid=b2c336bb5abf01acc0bbb8947211fbc6')_x000D_
.then(response => response.json())_x000D_
.then(data => {_x000D_
console.log(data);_x000D_
document.getElementById("demo").innerHTML = _x000D_
'<br>wind speed:-'+data.wind.speed + _x000D_
'<br>humidity :-'+data.main.humidity + _x000D_
'<br>temprature :-'+data.main.temp _x000D_
});_x000D_
}
_x000D_
<div id="demo"></div>
_x000D_
i had give api key openly because i had free subscription, just have a free subscriptions in beginning. you can find some good free api's and keys at "rapidapi.com"
With Chrome, Firefox, Safari, Edge, and Webview you can natively use the fetch API which makes this a lot easier, and much more terse.
If you need support for IE or older browsers, you can also use the fetch polyfill.
let url = 'https://example.com';
fetch(url)
.then(res => res.json())
.then((out) => {
console.log('Checkout this JSON! ', out);
})
.catch(err => { throw err });
Even though Node.js does not have this method built-in, you can use node-fetch which allows for the exact same implementation.
Source: Stackoverflow.com