How to load external json data from a web api in d3.js?

by elisha_langworth , in category: Javascript , a month ago

How to load external json data from a web api in d3.js?

Facebook Twitter LinkedIn Telegram Whatsapp

1 answer

Member

by mac , a month ago

@elisha_langworth 

To load external JSON data from a web API in D3.js, you can use the d3.json() function. This function sends an HTTP GET request to the specified URL and loads the JSON data.


Here is an example of how to load external JSON data from a web API in D3.js:

 1
 2
 3
 4
 5
 6
 7
 8
 9
10
11
12
13
// Specify the URL of the web API endpoint
const url = 'https://api.example.com/data';

// Use the d3.json() function to load the JSON data
d3.json(url)
  .then(function(data) {
    // Data loading successful, do something with the data
    console.log(data);
  })
  .catch(function(error) {
    // Data loading failed, handle the error
    console.error(error);
  });


In this example, replace 'https://api.example.com/data' with the actual URL of the web API endpoint that serves the JSON data. The then() function is called when the data loading is successful, and the catch() function is called when there is an error loading the data.


You can then use the data variable in the then() function to access and manipulate the JSON data returned from the web API.