PDF.co Web API – Barcode Reader API – C# – Read Barcode From URL

PDF.co Web API – Barcode Reader API – C# – Read Barcode From URL

Program.cs

using System;
using System.IO;
using System.Net;
using Newtonsoft.Json.Linq;

namespace ByteScoutWebApiExample
{
	class Program
	{
		// The authentication key (API Key).
		// Get your own by registering at https://app.pdf.co/documentation/api
		const String API_KEY = "***********************************";
		
		// Direct URL of source file (image or PDF) to search barcodes in.
		const string SourceFileURL = "https://s3-us-west-2.amazonaws.com/bytescout-com/files/demo-files/cloud-api/barcode-reader/sample.pdf";
		// Comma-separated list of barcode types to search. 
		// See valid barcode types in the documentation https://app.pdf.co/documentation/api/1.0/barcode/read_from_url.html
		const string BarcodeTypes = "Code128,Code39,Interleaved2of5,EAN13";
		// Comma-separated list of page indices (or ranges) to process. Leave empty for all pages. Example: '0,2-5,7-'.
		const string Pages = "";

		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);

			// Prepare URL for `Barcode Reader` API call
			string query = Uri.EscapeUriString(string.Format("https://api.pdf.co/v1/barcode/read/from/url?types={0}&pages={1}&url={2}", 
				BarcodeTypes,
				Pages,
				SourceFileURL));

			try
			{
				// Execute request
				string response = webClient.DownloadString(query);

				// Parse JSON response
				JObject json = JObject.Parse(response);

				if (json["error"].ToObject<bool>() == false)
				{
					// Display found barcodes in console
					foreach (JToken token in json["barcodes"])
					{
						Console.WriteLine("Found barcode:");
						Console.WriteLine("  Type: " + token["TypeName"]);
						Console.WriteLine("  Value: " + token["Value"]);
						Console.WriteLine("  Document Page Index: " + token["Page"]);
						Console.WriteLine("  Rectangle: " + token["Rect"]);
						Console.WriteLine("  Confidence: " + token["Confidence"]);
						Console.WriteLine();
					}
				}
				else
				{
					// Display service reported error
					Console.WriteLine(json["message"].ToString());
				}
			}
			catch (WebException e)
			{
				// Display request error
				Console.WriteLine(e.ToString());
			}

			webClient.Dispose();


			Console.WriteLine();
			Console.WriteLine("Press any key...");
			Console.ReadKey();
		}
	}
}

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