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To send a JSON HTTP request in JavaScript, you can use the XMLHttpRequest object or the fetch API. Below is an example using the fetch API to send a JSON object and include the current date in the filename.
Example using Fetch API
const data = {name: "John Doe",age: 30};const date = new Date().toISOString().split('T')[0]; // Get current date in YYYY-MM-DD formatconst filename = `data_${date}.json`;fetch('https://example.com/api', {method: 'POST',headers: {'Content-Type': 'application/json'},body: JSON.stringify(data)})then(response => response.json())then(data => {console.log('Success:', data);})catch((error) => {console.error('Error:', error);});Copied!✕CopyExample using XMLHttpRequest
const xhr = new XMLHttpRequest();const url = 'https://example.com/api';const data = JSON.stringify({name: "John Doe",age: 30});xhr.open("POST", url, true);xhr.setRequestHeader("Content-Type", "application/json");xhr.onreadystatechange = function () {if (xhr.readyState === 4 && xhr.status === 200) {const jsonResponse = JSON.parse(xhr.responseText);console.log(jsonResponse);}};xhr.send(data);Copied!✕Copy Request: json () method - Web APIs | MDN
JSON XMLHttpRequest - W3Schools
A common use of JSON is to read data from a web server, and display the data in a web page. This chapter will teach you, in 4 easy steps, how to read JSON data, using XMLHttp.
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