Get a Canonical URL in Node.JS

If you are working with an HTML document and need to retrieve the canonical link, you don’t want to do a lot of comparison between documents and searching through HTML code to find it. By utilizing this simple API in Node.JS, you will be able to automatically get the rel=canonical URL of the HTML document — no hassle needed.

To kick off the operation, we can run this command to install the SDK:

npm install cloudmersive-convert-api-client --save

Or, we can add this snippet to our package.json:

"dependencies": {
    "cloudmersive-convert-api-client": "^2.6.3"
  }

With the installation out of the way, we can input our file or file URL and API key into the following code to call the function:

var CloudmersiveConvertApiClient = require('cloudmersive-convert-api-client');
var defaultClient = CloudmersiveConvertApiClient.ApiClient.instance;
// Configure API key authorization: Apikey
var Apikey = defaultClient.authentications['Apikey'];
Apikey.apiKey = 'YOUR API KEY';
var apiInstance = new CloudmersiveConvertApiClient.EditHtmlApi();
var opts = { 
  'inputFile': Buffer.from(fs.readFileSync("C:\\temp\\inputfile").buffer), // File | Optional: Input file to perform the operation on.
  'inputFileUrl': "inputFileUrl_example" // String | Optional: URL of a file to operate on as input.
};
var callback = function(error, data, response) {
  if (error) {
    console.error(error);
  } else {
    console.log('API called successfully. Returned data: ' + data);
  }
};
apiInstance.editHtmlHtmlGetRelCanonical(opts, callback);

To obtain your API key, visit the Cloudmersive website to register for a free account; this will provide 800 monthly calls across our multitude of APIs.