How to retrieve assets by date created via API?

Use the Cloudinary Search API to retrieve assets from a specific folder and sort them by their `created_at` timestamp. This will allow you to identify and filter out X number of assets by date. The API returns a maximum of 500 assets per call, if you have more assets, you'll need to iterate over the results using the `next_cursor`. 

Below is an example in PHP:

$result = $cloudinary->searchApi() 
->expression('folder:"<FOLDER_NAME>"') 
->sortBy('created_at','desc') 
->maxResults(500) 
->nextCursor('xxx') --> iterate here with the next_cursor from the previous 
$result ->execute();

Here’s the same example using Node.js, let's say the maximum number of results we need is 200:

const cloudinary = require('cloudinary').v2; 

async function getOldestAssets(folderName, maxResults = 200) { 
   let assets = []; 
   let nextCursor = null; 
  do { 
      let result = await cloudinary.search 
         .expression(`folder:"${folderName}"`) 
         .sort_by('created_at', 'desc') // Sort in descending order to get the newest first 
         .max_results(500) 
         .next_cursor(nextCursor) 
         .execute(); 

      assets = assets.concat(result.resources); 
      nextCursor = result.next_cursor; 

    } while (nextCursor && assets.length < maxResults); 

  // Return the 200 oldest assets if there are at least 200 
  return assets.slice(-maxResults); 
} 


// Usage example 
getOldestAssets('folder_name') 
  .then(oldestAssets => { console.log('Oldest assets:', oldestAssets); }) 
  .catch(error => { console.error('Error fetching assets:', error); });