How to generate a UPC-A barcode as a PNG file in Node.JS

Setting up a barcode generating function can be a bit challenging. That’s why we took the liberty of doing it for you from start to finish. We’ve packaged up the result in an API that can be accessed with a simple function call. Prepare to save a ton of time on generating UPC-A format barcodes.

Install our API first. Simply add this reference to your package.json.

"dependencies": {
    "cloudmersive-barcodeapi-client": "^1.1.2"
  }

Now call generateBarcodeUPCA:

var CloudmersiveBarcodeapiClient = require('cloudmersive-barcodeapi-client');
var defaultClient = CloudmersiveBarcodeapiClient.ApiClient.instance;
// Configure API key authorization: Apikey
var Apikey = defaultClient.authentications['Apikey'];
Apikey.apiKey = 'YOUR API KEY';
// Uncomment the following line to set a prefix for the API key, e.g. "Token" (defaults to null)
//Apikey.apiKeyPrefix = 'Token';
var apiInstance = new CloudmersiveBarcodeapiClient.GenerateBarcodeApi();
var value = "value_example"; // String | UPC-A barcode value to generate from
var callback = function(error, data, response) {
if (error) {
console.error(error);
} else {
console.log('API called successfully. Returned data: ' + data);
}
};
apiInstance.generateBarcodeUPCA(value, callback);

That’s it! Any string value entered will be converted into barcode format and sent back by the API as a PNG file. Simple as that.