Download Helper Data Json -
This is the most common method for web applications. It uses a and a hidden anchor element to trigger the download immediately. javascript
If you are using specific tools, they often have built-in helper functions: Download helper data json
function downloadHelperData(dataObj, fileName = 'helper-data.json') { // 1. Convert the JavaScript object to a formatted JSON string const jsonStr = JSON.stringify(dataObj, null, 2); // 2. Create a Blob or Data URI with the JSON content const dataUri = 'data:application/json;charset=utf-8,' + encodeURIComponent(jsonStr); // 3. Create a temporary 'a' element to trigger the download const linkElement = document.createElement('a'); linkElement.setAttribute('href', dataUri); linkElement.setAttribute('download', fileName); // 4. Append to body, click, and then remove it document.body.appendChild(linkElement); linkElement.click(); linkElement.remove(); } Use code with caution. Copied to clipboard This is the most common method for web applications
If you need to serve the file from a backend, ensure you set the correct header ( Content-Type: application/json ) to either display it or force a download using Content-Disposition . 3. Native Export Features Convert the JavaScript object to a formatted JSON
Use the st.download_button component. You can pass the data directly as a string or read it from a local file path.
It doesn't require a jQuery dependency or an existing HTML element on the page.