QR Code With Redundancy Setting - C#
Barcode Generator sample in C# demonstrating ‘QR Code With Redundancy Setting’
Program.cs
using System;
using System.Collections.Generic;
using System.IO;
using System.Net;
using Newtonsoft.Json;
using Newtonsoft.Json.Linq;
namespace ByteScoutWebApiExample
{
class Program
{
// The authentication key (API Key).
// Get your own by registering at https://app.pdf.co
const String API_KEY = "************************************";
// Result file name
const string ResultFileName = @".\barcode.png";
// Barcode type. See valid barcode types in the documentation https://apidocs.pdf.co/#barcode-generator
const string BarcodeType = "QRCode";
// Barcode value
const string BarcodeValue = "QR123456\nhttps://pdf.co\nhttps://bytescout.com";
static void Main(string[] args)
{
// Create standard .NET web client instance
WebClient webClient = new WebClient();
// Set API Key
webClient.Headers.Add("x-api-key", API_KEY);
/*
Valid error correction levels:
----------------------------------
Low - [default] Lowest error correction level. (Approx. 7% of codewords can be restored).
Medium - Medium error correction level. (Approx. 15% of codewords can be restored).
Quarter - Quarter error correction level (Approx. 25% of codewords can be restored).
High - Highest error correction level (Approx. 30% of codewords can be restored).
*/
// Set "Custom Profiles" parameter
var Profiles = @"{ ""profiles"": [ { ""profile1"": { ""Options.QRErrorCorrectionLevel"": ""Quarter"" } } ] }";
// Prepare requests params as JSON
// See documentation: https://apidocs.pdf.co/#barcode-generator
Dictionary<string, string> parameters = new Dictionary<string, string>();
parameters.Add("name", Path.GetFileName(ResultFileName));
parameters.Add("type", BarcodeType);
parameters.Add("value", BarcodeValue);
parameters.Add("profiles", Profiles);
// Convert dictionary of params to JSON
string jsonPayload = JsonConvert.SerializeObject(parameters);
try
{
// URL of "Barcode Generator" endpoint
string url = "https://api.pdf.co/v1/barcode/generate";
// Execute POST request with JSON payload
string response = webClient.UploadString(url, jsonPayload);
// Parse JSON response
JObject json = JObject.Parse(response);
if (json["error"].ToObject<bool>() == false)
{
// Get URL of generated barcode image file
string resultFileURI = json["url"].ToString();
// Download generated image file
webClient.DownloadFile(resultFileURI, ResultFileName);
Console.WriteLine("Generated barcode saved to \"{0}\" file.", ResultFileName);
}
else
{
Console.WriteLine(json["message"].ToString());
}
}
catch (WebException e)
{
Console.WriteLine(e.ToString());
}
finally
{
webClient.Dispose();
}
Console.WriteLine();
Console.WriteLine("Press any key...");
Console.ReadKey();
}
}
}
PDF.co Web API: the Web API with a set of tools for documents manipulation, data conversion, data extraction, splitting and merging of documents. Includes image recognition, built-in OCR, barcode generation and barcode decoders to decode bar codes from scans, pictures and pdf.
Download Source Code (.zip)
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