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Add batch coupon code generation samples for all languages #3

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Add batch coupon generation sample for Ruby
ucjonathan Jan 9, 2026
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Add batch coupon generation sample for Python
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Add batch coupon generation sample for JavaScript
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Add batch coupon generation sample for TypeScript
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Add batch coupon generation sample for PHP
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Add batch coupon generation sample for Java
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Add batch coupon generation sample for C#
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185 changes: 185 additions & 0 deletions csharp/coupon/GenerateCouponCodesBatch.cs
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using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Threading;
using com.ultracart.admin.v2.Api;
using com.ultracart.admin.v2.Model;

namespace SdkSample.coupon
{
/// <summary>
/// Batch Coupon Code Generator
/// Generates large batches of coupon codes by calling the API repeatedly
///
/// Usage: bin/Debug/SdkSample.exe GenerateCouponCodesBatch <merchant_code> [total_codes] [output_file]
/// Example: bin/Debug/SdkSample.exe GenerateCouponCodesBatch 10OFF 10000 codes.csv
/// </summary>
public class GenerateCouponCodesBatch
{
private const int BATCH_SIZE = 1000;

public static void Execute(string[] args)
{
// Parse command line arguments
if (args.Length < 1)
{
Console.Error.WriteLine("Error: Merchant code is required");
Console.Error.WriteLine("Usage: bin/Debug/SdkSample.exe GenerateCouponCodesBatch <merchant_code> [total_codes] [output_file]");
Console.Error.WriteLine("Example: bin/Debug/SdkSample.exe GenerateCouponCodesBatch 10OFF 10000 codes.csv");
Environment.Exit(1);
}

string merchantCode = args[0];
int totalCodes = args.Length > 1 ? int.Parse(args[1]) : 10000;
string outputFile = args.Length > 2 ? args[2] :
$"coupon_codes_{merchantCode}_{DateTimeOffset.UtcNow.ToUnixTimeSeconds()}.csv";

// Validate inputs
if (totalCodes < 1 || totalCodes > 100000)
{
Console.Error.WriteLine($"Error: total_codes must be between 1 and 100,000 (got {totalCodes})");
Environment.Exit(1);
}

// Display header
Console.WriteLine("Batch Coupon Code Generator");
Console.WriteLine("=============================");
Console.WriteLine($"Merchant Code: {merchantCode}");
Console.WriteLine($"Total Codes: {totalCodes}");
Console.WriteLine($"Output File: {outputFile}");
Console.WriteLine();

try
{
// Initialize API client
CouponApi couponApi = new CouponApi(Constants.ApiKey);

// Look up coupon by merchant code
Console.WriteLine("Looking up coupon by merchant code...");
CouponResponse couponResponse = couponApi.GetCouponByMerchantCode(merchantCode);
int? couponOid = couponResponse.Coupon.CouponOid;
Console.WriteLine($"Found coupon OID: {couponOid}");
Console.WriteLine();

// Calculate batching
int numBatches = (int)Math.Ceiling((double)totalCodes / BATCH_SIZE);
List<string> allCodes = new List<string>();

Console.WriteLine($"Generating codes in batches of {BATCH_SIZE}...");
DateTime startTime = DateTime.Now;

// Generate codes in batches
for (int batchNum = 1; batchNum <= numBatches; batchNum++)
{
// Calculate batch size
int batchSize = (batchNum == numBatches)
? totalCodes - (batchNum - 1) * BATCH_SIZE
: BATCH_SIZE;

// Create request
CouponCodesRequest codesRequest = new CouponCodesRequest();
codesRequest.Quantity = batchSize;
codesRequest.ExpirationDts = DateTime.UtcNow.AddDays(365).ToString("yyyy-MM-ddTHH:mm:ssK");

// Call API with retry logic
int retryCount = 0;
bool success = false;

while (retryCount < 2 && !success)
{
try
{
CouponCodesResponse batchResponse = couponApi.GenerateCouponCodes(couponOid, codesRequest);
List<string> batchCodes = batchResponse.CouponCodes;
allCodes.AddRange(batchCodes);
success = true;

// Display progress
double elapsed = (DateTime.Now - startTime).TotalSeconds;
Console.WriteLine($"[{batchNum}/{numBatches}] Generated {batchSize} codes (Total: {allCodes.Count}) - Elapsed: {elapsed:F1}s");
}
catch (Exception e)
{
retryCount++;
if (retryCount < 2)
{
Console.WriteLine($"Warning: Batch {batchNum} failed, retrying...");
Thread.Sleep(2000); // exponential backoff
}
else
{
Console.Error.WriteLine($"Error: Failed to generate batch {batchNum} after retries");
Console.Error.WriteLine($"Details: {e.Message}");
Environment.Exit(1);
}
}
}

// Rate limiting - sleep between batches (except last)
if (batchNum < numBatches)
{
Thread.Sleep(750);
}
}

Console.WriteLine();
Console.WriteLine("Writing codes to CSV file...");

// Write to CSV
try
{
using (StreamWriter writer = new StreamWriter(outputFile))
{
// Write header
writer.WriteLine("code,generated_at,batch_number");

// Write codes
int batchNum = 1;
int codesInBatch = 0;
string timestamp = DateTime.UtcNow.ToString("yyyy-MM-ddTHH:mm:ssK");

foreach (string code in allCodes)
{
writer.WriteLine($"{code},{timestamp},{batchNum}");

codesInBatch++;
if (codesInBatch >= BATCH_SIZE)
{
batchNum++;
codesInBatch = 0;
}
}
}

Console.WriteLine($"Successfully saved {allCodes.Count} codes to: {outputFile}");
}
catch (Exception e)
{
Console.Error.WriteLine($"Error writing to file: {e.Message}");
Environment.Exit(1);
}

// Display summary
double totalTime = (DateTime.Now - startTime).TotalSeconds;
double avgTime = totalTime / numBatches;

Console.WriteLine();
Console.WriteLine("Summary:");
Console.WriteLine($"- Merchant Code: {merchantCode}");
Console.WriteLine($"- Coupon OID: {couponOid}");
Console.WriteLine($"- Total Codes Generated: {allCodes.Count}");
Console.WriteLine($"- Batches Processed: {numBatches}");
Console.WriteLine($"- Total Time: {totalTime:F1}s");
Console.WriteLine($"- Average per batch: {avgTime:F1}s");
Console.WriteLine($"- Output File: {Path.GetFullPath(outputFile)}");
}
catch (Exception ex)
{
Console.Error.WriteLine($"Error: Coupon with merchant code '{merchantCode}' not found");
Console.Error.WriteLine($"Details: {ex.Message}");
Environment.Exit(1);
}
}
}
}
176 changes: 176 additions & 0 deletions java/src/coupon/GenerateCouponCodesBatch.java
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package coupon;

import com.ultracart.admin.v2.CouponApi;
import com.ultracart.admin.v2.models.*;
import com.ultracart.admin.v2.util.ApiException;
import common.Constants;

import java.io.FileWriter;
import java.io.IOException;
import java.nio.file.Paths;
import java.time.Instant;
import java.time.temporal.ChronoUnit;
import java.util.ArrayList;
import java.util.List;

/**
* Batch Coupon Code Generator
* Generates large batches of coupon codes by calling the API repeatedly
*
* Usage: java -cp target/sdk_samples-1.0-SNAPSHOT.jar coupon.GenerateCouponCodesBatch <merchant_code> [total_codes] [output_file]
* Example: java -cp target/sdk_samples-1.0-SNAPSHOT.jar coupon.GenerateCouponCodesBatch 10OFF 10000 codes.csv
*/
public class GenerateCouponCodesBatch {
private static final int BATCH_SIZE = 1000;

public static void execute(String[] args) {
// Parse command line arguments
if (args.length < 1) {
System.err.println("Error: Merchant code is required");
System.err.println("Usage: java -cp target/sdk_samples-1.0-SNAPSHOT.jar coupon.GenerateCouponCodesBatch <merchant_code> [total_codes] [output_file]");
System.err.println("Example: java -cp target/sdk_samples-1.0-SNAPSHOT.jar coupon.GenerateCouponCodesBatch 10OFF 10000 codes.csv");
System.exit(1);
}

String merchantCode = args[0];
int totalCodes = args.length > 1 ? Integer.parseInt(args[1]) : 10000;
String outputFile = args.length > 2 ? args[2] :
"coupon_codes_" + merchantCode + "_" + System.currentTimeMillis() + ".csv";

// Validate inputs
if (totalCodes < 1 || totalCodes > 100000) {
System.err.println("Error: total_codes must be between 1 and 100,000 (got " + totalCodes + ")");
System.exit(1);
}

// Display header
System.out.println("Batch Coupon Code Generator");
System.out.println("=============================");
System.out.println("Merchant Code: " + merchantCode);
System.out.println("Total Codes: " + totalCodes);
System.out.println("Output File: " + outputFile);
System.out.println();

try {
// Initialize API client
CouponApi couponApi = new CouponApi(Constants.API_KEY);

// Look up coupon by merchant code
System.out.println("Looking up coupon by merchant code...");
CouponResponse couponResponse = couponApi.getCouponByMerchantCode(merchantCode, null);
Integer couponOid = couponResponse.getCoupon().getCouponOid();
System.out.println("Found coupon OID: " + couponOid);
System.out.println();

// Calculate batching
int numBatches = (int) Math.ceil((double) totalCodes / BATCH_SIZE);
List<String> allCodes = new ArrayList<>();

System.out.println("Generating codes in batches of " + BATCH_SIZE + "...");
long startTime = System.currentTimeMillis();

// Generate codes in batches
for (int batchNum = 1; batchNum <= numBatches; batchNum++) {
// Calculate batch size
int batchSize = (batchNum == numBatches)
? totalCodes - (batchNum - 1) * BATCH_SIZE
: BATCH_SIZE;

// Create request
CouponCodesRequest codesRequest = new CouponCodesRequest();
codesRequest.setQuantity(batchSize);
codesRequest.setExpirationDts(Instant.now().plus(365, ChronoUnit.DAYS).toString());

// Call API with retry logic
int retryCount = 0;
boolean success = false;

while (retryCount < 2 && !success) {
try {
CouponCodesResponse batchResponse = couponApi.generateCouponCodes(couponOid, codesRequest);
List<String> batchCodes = batchResponse.getCouponCodes();
allCodes.addAll(batchCodes);
success = true;

// Display progress
double elapsed = (System.currentTimeMillis() - startTime) / 1000.0;
System.out.printf("[%d/%d] Generated %d codes (Total: %d) - Elapsed: %.1fs%n",
batchNum, numBatches, batchSize, allCodes.size(), elapsed);
} catch (ApiException e) {
retryCount++;
if (retryCount < 2) {
System.out.println("Warning: Batch " + batchNum + " failed, retrying...");
Thread.sleep(2000); // exponential backoff
} else {
System.err.println("Error: Failed to generate batch " + batchNum + " after retries");
System.err.println("Details: " + e.getMessage());
System.exit(1);
}
}
}

// Rate limiting - sleep between batches (except last)
if (batchNum < numBatches) {
Thread.sleep(750);
}
}

System.out.println();
System.out.println("Writing codes to CSV file...");

// Write to CSV
try (FileWriter writer = new FileWriter(outputFile)) {
// Write header
writer.write("code,generated_at,batch_number\n");

// Write codes
int batchNum = 1;
int codesInBatch = 0;
String timestamp = Instant.now().toString();

for (String code : allCodes) {
writer.write(code + "," + timestamp + "," + batchNum + "\n");

codesInBatch++;
if (codesInBatch >= BATCH_SIZE) {
batchNum++;
codesInBatch = 0;
}
}

System.out.println("Successfully saved " + allCodes.size() + " codes to: " + outputFile);
} catch (IOException e) {
System.err.println("Error writing to file: " + e.getMessage());
System.exit(1);
}

// Display summary
double totalTime = (System.currentTimeMillis() - startTime) / 1000.0;
double avgTime = totalTime / numBatches;

System.out.println();
System.out.println("Summary:");
System.out.println("- Merchant Code: " + merchantCode);
System.out.println("- Coupon OID: " + couponOid);
System.out.println("- Total Codes Generated: " + allCodes.size());
System.out.println("- Batches Processed: " + numBatches);
System.out.printf("- Total Time: %.1fs%n", totalTime);
System.out.printf("- Average per batch: %.1fs%n", avgTime);
System.out.println("- Output File: " + Paths.get(outputFile).toAbsolutePath());

} catch (ApiException e) {
System.err.println("Error: Coupon with merchant code '" + merchantCode + "' not found");
System.err.println("Details: " + e.getMessage());
System.err.println("Status code: " + e.getCode());
System.exit(1);
} catch (InterruptedException e) {
System.err.println("Error: Thread interrupted");
System.err.println("Details: " + e.getMessage());
System.exit(1);
}
}

public static void main(String[] args) {
execute(args);
}
}
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