Scan and block sensitive photos and content in Node.JS

Cloudmersive

Apr 13, 2019·1 min read

In this article, we will scan photos for sensitive content, such as nudity, violence, and other potentially offensive material. Based on a sensitivity score, we can then choose to block or not block this content.

This is actually pretty easy to accomplish. The first thing we need to do is add a reference to our package.json for the image library:

"dependencies": {
    "cloudmersive-image-api-client": "^1.1.4"
  }

Now we will simply call nsfwClassify:

var CloudmersiveImageApiClient = require('cloudmersive-image-api-client');
var defaultClient = CloudmersiveImageApiClient.ApiClient.instance;// Configure API key authorization: Apikey
var Apikey = defaultClient.authentications['Apikey'];
Apikey.apiKey = 'YOUR API KEY';var apiInstance = new CloudmersiveImageApiClient.NsfwApi();var imageFile = Buffer.from(fs.readFileSync("C:\\temp\\inputfile.jpg").buffer); // File | Image file to perform the operation on.  Common file formats such as PNG, JPEG are supported.var callback = function(error, data, response) {
  if (error) {
    console.error(error);
  } else {
    console.log('API called successfully. Returned data: ' + data);
  }
};
apiInstance.nsfwClassify(imageFile, callback);

This will return a data structure with three values — Successful, which indicates whether the classification operation was sucessful; Score which is between 0.0 and 1.0, and any values above 0.8 are high probability NSFW content; and finally ClassificationOutcome which is an enum that helps you identify the classification of the image.

You can get an API key from Cloudmersive that includes 50,000 API calls/month at no cost and with no expiration.