Run this command to install the SDK:

npm install cloudmersive-barcodeapi-client --save

Or add this snippet to your package.json:

  "dependencies": {
    "cloudmersive-barcodeapi-client": "^1.1.5"

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';

var apiInstance = new CloudmersiveBarcodeapiClient.GenerateBarcodeApi();

var value = "value_example"; // String | UPC-E barcode value to generate from

var callback = function(error, data, response) {
  if (error) {
  } else {
    console.log('API called successfully. Returned data: ' + data);
apiInstance.generateBarcodeUPCE(value, callback);

Run this command to install the SDK:

pip install cloudmersive-barcode-api-client

from __future__ import print_function
import time
import cloudmersive_barcode_api_client
from import ApiException
from pprint import pprint

# Configure API key authorization: Apikey
configuration = cloudmersive_barcode_api_client.Configuration()
configuration.api_key['Apikey'] = 'YOUR_API_KEY'

# create an instance of the API class
api_instance = cloudmersive_barcode_api_client.GenerateBarcodeApi(cloudmersive_barcode_api_client.ApiClient(configuration))
value = 'value_example' # str | UPC-E barcode value to generate from

    # Generate a UPC-E code barcode as PNG file
    api_response = api_instance.generate_barcode_upce(value)
except ApiException as e:
    print("Exception when calling GenerateBarcodeApi->generate_barcode_upce: %s\n" % e)

Run this command to install the SDK:

Install-Package Cloudmersive.APIClient.NET.Barcode -Version 3.0.2

using System;
using System.Diagnostics;
using Cloudmersive.APIClient.NET.Barcode.Api;
using Cloudmersive.APIClient.NET.Barcode.Client;
using Cloudmersive.APIClient.NET.Barcode.Model;

namespace Example
    public class GenerateBarcodeUPCEExample
        public void main()
            // Configure API key authorization: Apikey
            Configuration.Default.AddApiKey("Apikey", "YOUR_API_KEY");

            var apiInstance = new GenerateBarcodeApi();
            var value = value_example;  // string | UPC-E barcode value to generate from

                // Generate a UPC-E code barcode as PNG file
                byte[] result = apiInstance.GenerateBarcodeUPCE(value);
            catch (Exception e)
                Debug.Print("Exception when calling GenerateBarcodeApi.GenerateBarcodeUPCE: " + e.Message );

To install with Maven, add a reference to the repository in pom.xml:


And add a reference to the dependency in pom.xml:


To install with Gradle, add it in your root build.gradle at the end of repositories:

allprojects {
	repositories {
		maven { url '' }

And add the dependency in build.gradle:

dependencies {
        implementation 'com.github.Cloudmersive:Cloudmersive.APIClient.Java:v4.25'

// Import classes:
//import com.cloudmersive.client.invoker.ApiClient;
//import com.cloudmersive.client.invoker.ApiException;
//import com.cloudmersive.client.invoker.Configuration;
//import com.cloudmersive.client.invoker.auth.*;
//import com.cloudmersive.client.GenerateBarcodeApi;

ApiClient defaultClient = Configuration.getDefaultApiClient();

// Configure API key authorization: Apikey
ApiKeyAuth Apikey = (ApiKeyAuth) defaultClient.getAuthentication("Apikey");
Apikey.setApiKey("YOUR API KEY");
// Uncomment the following line to set a prefix for the API key, e.g. "Token" (defaults to null)

GenerateBarcodeApi apiInstance = new GenerateBarcodeApi();
String value = "value_example"; // String | UPC-E barcode value to generate from
try {
    byte[] result = apiInstance.generateBarcodeUPCE(value);
} catch (ApiException e) {
    System.err.println("Exception when calling GenerateBarcodeApi#generateBarcodeUPCE");

Run this command to install the SDK:

Add the Objective-C client to your Podfile:

pod 'CloudmersiveBarcodeApiClient', '~> 1.0'

CMDefaultConfiguration *apiConfig = [CMDefaultConfiguration sharedConfig];

// Configure API key authorization: (authentication scheme: Apikey)
[apiConfig setApiKey:@"YOUR_API_KEY" forApiKeyIdentifier:@"Apikey"];

NSString* value = value_example; // UPC-E barcode value to generate from

CMGenerateBarcodeApi*apiInstance = [[CMGenerateBarcodeApi alloc] init];

// Generate a UPC-E code barcode as PNG file
[apiInstance generateBarcodeUPCEWithValue:value
          completionHandler: ^(NSData* output, NSError* error) {
                        if (output) {
                            NSLog(@"%@", output);
                        if (error) {
                            NSLog(@"Error calling CMGenerateBarcodeApi->generateBarcodeUPCE: %@", error);

Add the Ruby client to your Gemfile:

gem 'cloudmersive-barcode-api-client', '~> 2.0.3'

# load the gem
require 'cloudmersive-barcode-api-client'
# setup authorization
CloudmersiveBarcodeApiClient.configure do |config|
  # Configure API key authorization: Apikey
  config.api_key['Apikey'] = 'YOUR API KEY'
  # Uncomment the following line to set a prefix for the API key, e.g. 'Bearer' (defaults to nil)
  #config.api_key_prefix['Apikey'] = 'Bearer'

api_instance =

value = 'value_example' # String | UPC-E barcode value to generate from

  #Generate a UPC-E code barcode as PNG file
  result = api_instance.generate_barcode_upce(value)
  p result
rescue CloudmersiveBarcodeApiClient::ApiError => e
  puts "Exception when calling GenerateBarcodeApi->generate_barcode_upce: #{e}"

Download and copy the /client folder into your Apex project:

Download Apex Client

SwagGenerateBarcodeApi api = new SwagGenerateBarcodeApi();
SwagClient client = api.getClient();

// Configure API key authorization: Apikey
ApiKeyAuth Apikey = (ApiKeyAuth) client.getAuthentication('Apikey');
Apikey.setApiKey('YOUR API KEY');

Map<String, Object> params = new Map<String, Object>{
    'value' => 'value_example'

try {
    // cross your fingers
    Blob result = api.generateBarcodeUPCE(params);
} catch (Swagger.ApiException e) {
    // ...handle your exceptions

Install libcurl in your C/C++ project:

CURL *curl;
CURLcode res;
curl = curl_easy_init();
if(curl) {
     curl_easy_setopt(curl, CURLOPT_CUSTOMREQUEST, "POST");
     curl_easy_setopt(curl, CURLOPT_URL, "");
     curl_easy_setopt(curl, CURLOPT_FOLLOWLOCATION, 1L);
     curl_easy_setopt(curl, CURLOPT_DEFAULT_PROTOCOL, "https");
     struct curl_slist *headers = NULL;
     headers = curl_slist_append(headers, "Content-Type: application/x-www-form-urlencoded");
     headers = curl_slist_append(headers, "Apikey: YOUR-API-KEY-HERE");
     curl_easy_setopt(curl, CURLOPT_HTTPHEADER, headers);
     const char *data = "0=%3C&1=s&2=t&3=r&4=i&5=n&6=g&7=%3E";
     curl_easy_setopt(curl, CURLOPT_POSTFIELDS, data);
     res = curl_easy_perform(curl);
curl --location --request POST '' \
--header 'Content-Type: application/x-www-form-urlencoded' \
--header 'Apikey: YOUR-API-KEY-HERE' \
--data-urlencode '0=<' \
--data-urlencode '1=s' \
--data-urlencode '2=t' \
--data-urlencode '3=r' \
--data-urlencode '4=i' \
--data-urlencode '5=n' \
--data-urlencode '6=g' \
--data-urlencode '7=>'
import Foundation
#if canImport(FoundationNetworking)
import FoundationNetworking

var semaphore = DispatchSemaphore (value: 0)

let parameters = "0=%3C&1=s&2=t&3=r&4=i&5=n&6=g&7=%3E"
let postData = .utf8)

var request = URLRequest(url: URL(string: "")!,timeoutInterval: Double.infinity)
request.addValue("application/x-www-form-urlencoded", forHTTPHeaderField: "Content-Type")
request.addValue("YOUR-API-KEY-HERE", forHTTPHeaderField: "Apikey")

request.httpMethod = "POST"
request.httpBody = postData

let task = URLSession.shared.dataTask(with: request) { data, response, error in 
     guard let data = data else {
          print(String(describing: error))
     print(String(data: data, encoding: .utf8)!)


This code snippet uses the built-in JavaScript XHR request capability

var data = "0=%3C&1=s&2=t&3=r&4=i&5=n&6=g&7=%3E";

var xhr = new XMLHttpRequest();
xhr.withCredentials = true;

xhr.addEventListener("readystatechange", function() {
     if(this.readyState === 4) {
});"POST", "");
xhr.setRequestHeader("Content-Type", "application/x-www-form-urlencoded");
xhr.setRequestHeader("Apikey", "YOUR-API-KEY-HERE");

package main

import (

func main() {

     url := ""
     method := "POST"

     payload := strings.NewReader("0=%3C&1=s&2=t&3=r&4=i&5=n&6=g&7=%3E")

     client := &http.Client {
     req, err := http.NewRequest(method, url, payload)

     if err != nil {
     req.Header.Add("Content-Type", "application/x-www-form-urlencoded")
     req.Header.Add("Apikey", "YOUR-API-KEY-HERE")

     res, err := client.Do(req)
     if err != nil {
     defer res.Body.Close()

     body, err := ioutil.ReadAll(res.Body)
     if err != nil {

Walkthrough Video