Generate PDF Invoice From HTML Template - C#
PDF from HTML Template sample in C# demonstrating ‘Generate PDF Invoice From HTML Template’
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 = "***********************************";
static void Main(string[] args)
{
// --TemplateID--
/*
Please follow below steps to create your own HTML Template and get "templateId".
1. Add new html template in app.pdf.co/templates/html
2. Copy paste your html template code into this new template. Sample HTML templates can be found at "https://github.com/bytescout/pdf-co-api-samples/tree/master/PDF%20from%20HTML%20template/TEMPLATES-SAMPLES"
3. Save this new template
4. Copy it’s ID to clipboard
5. Now set ID of the template into “templateId” parameter
*/
// HTML template using built-in template
// see https://app.pdf.co/templates/html/2/edit
var templateId = 2;
// Data to fill the template
string templateData = File.ReadAllText(@".\invoice_data.json");
// Destination PDF file name
string destinationFile = @".\result.pdf";
// Create standard .NET web client instance
WebClient webClient = new WebClient();
// Set API Key
webClient.Headers.Add("x-api-key", API_KEY);
webClient.Headers.Add("Content-Type", "application/json");
try
{
// URL for `HTML to PDF` API call
string url = Uri.EscapeUriString(string.Format(
"https://api.pdf.co/v1/pdf/convert/from/html?name={0}",
Path.GetFileName(destinationFile)));
// Prepare requests params as JSON
Dictionary<string, object> parameters = new Dictionary<string, object>();
parameters.Add("name", Path.GetFileName(destinationFile));
parameters.Add("templateId", templateId);
parameters.Add("templateData", templateData);
// Convert dictionary of params to JSON
string jsonPayload = JsonConvert.SerializeObject(parameters);
// Execute request
string response = webClient.UploadString(url, jsonPayload);
// Parse JSON response
JObject json = JObject.Parse(response);
if (json["error"].ToObject<bool>() == false)
{
// Get URL of generated PDF file
string resultFileUrl = json["url"].ToString();
webClient.Headers.Remove("Content-Type"); // remove the header required for only the previous request
// Download the PDF file
webClient.DownloadFile(resultFileUrl, destinationFile);
Console.WriteLine("Generated PDF document saved as \"{0}\" file.", destinationFile);
}
else
{
Console.WriteLine(json["message"].ToString());
}
}
catch (WebException e)
{
Console.WriteLine(e.ToString());
}
webClient.Dispose();
Console.WriteLine();
Console.WriteLine("Press any key to exit...");
Console.ReadKey();
}
}
}
invoice_data.json
{
"invoice_id": "1234567",
"invoice_date": "April 30, 2016",
"invoice_dateDue": "May 15, 2016",
"paid": false,
"issuer_name": "Acme Inc",
"issuer_company": "Acme International",
"issuer_address": "City, Street 3rd",
"issuer_email": "support@example.com",
"issuer_website": "http://example.com",
"client_name": "Food Delivery Inc.",
"client_company": "Food Delivery International",
"client_address": "New York, Some Street, 42",
"client_email": "client@example.com",
"items": [
{
"name": "Setting up new web-site",
"price": 250
},
{
"name": "Website Content Addition",
"price": 700
},
{
"name": "Database Setup",
"price": 200
},
{
"name": "Record Digitalization",
"price": 1800
},
{
"name": "Cloud Storage",
"price": 500
},
{
"name": "Short Messages",
"price": 35
},
{
"name": "Search Engine Optimization",
"price": 200
},
{
"name": "Priority Support",
"price": 75
},
{
"name": "Configuring mail server and mailboxes",
"price": 50
}
],
"tax": 0.065,
"discount": 0.01,
"note": "Thank You For Your Business!"
}
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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