Make XmlHttpRequest POST using JSON

Making XmlHttpRequest POST Using JSON 🌐📤

So, you want to make an AJAX POST request using JSON data using plain old JavaScript, huh? Well, you're in luck! In this blog post, I'll walk you through the steps to achieve just that. Let's get started!

The Problem 😩

You mentioned that the content-type is URL form encoded and it doesn't support nested JSONs. You also tried various serialize methods found on Stack Overflow but they all flatten your JSON into one format. Frustrating, right?

The Solution 💡

Fortunately, we have a solution for you that will allow you to send nested JSON data in your AJAX POST request. Here's how you can do it:

1. First, create an instance of the XMLHttpRequest object. This object allows us to make HTTP requests to a server.

   const xhr = new XMLHttpRequest();

2. Next, specify the URL you want to send the request to and set the request method to POST.

   const url = 'your_api_endpoint'; xhr.open('POST', url);

3. Set the request header to specify that you'll be sending JSON data.

   xhr.setRequestHeader('Content-Type', 'application/json');

4. Now, you need to convert your JSON object to a string using JSON.stringify(). This will properly format your nested JSON data.

   const data = { email: "hello@user.com", response: { name: "Tester", }, }; const json = JSON.stringify(data);

5. Finally, send the request with the JSON data using the send() method.

   xhr.send(json);

That's it! You've successfully made an AJAX POST request using JSON data, including nested JSONs. 🎉

Call-to-Action 🚀

Now that you have learned how to make XmlHttpRequest POST using JSON in plain JavaScript, it's time to put your new knowledge into practice. Take a moment to try it out in your own code and see how it works for you.

If you have any questions or encountered any issues along the way, don't hesitate to leave a comment below. I'd love to help you out!

Happy coding! 💻😄