C# - Email to PDF
PDF from Email sample in Email to PDF demonstrating ‘C#’
Program.cs
using Newtonsoft.Json;
using Newtonsoft.Json.Linq;
using System;
using System.Collections.Generic;
using System.Net;
using System.Threading;
namespace ByteScoutWebApiExample
{
class Program
{
// The authentication key (API Key).
// Get your own by registering at https://app.pdf.co
const String API_KEY = "***********************************";
// Source Email file to convert
// You can also upload your own file into PDF.co and use it as url. Check "Upload File" samples for code snippets: https://github.com/bytescout/pdf-co-api-samples/tree/master/File%20Upload/
const string SourceFileUrl = @"https://bytescout-com.s3-us-west-2.amazonaws.com/files/demo-files/cloud-api/email-to-pdf/sample.eml";
// Ouput file path
const string DestinationFile = @"output.pdf";
// (!) Make asynchronous job
const bool Async = true;
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);
try
{
// URL for `PDF FROM Email` API call
var url = "https://api.pdf.co/v1/pdf/convert/from/email";
// Prepare requests params as JSON
Dictionary<string, object> parameters = new Dictionary<string, object>();
// Link to input EML or MSG file to be converted.
// You can pass link to file from Google Drive, Dropbox or another online file service that can generate shareable links.
// You can also use built-in PDF.co cloud storage located at https://app.pdf.co/files or upload your file as temporary file right before making this API call (see Upload and Manage Files section for more details on uploading files via API).
parameters.Add("url", SourceFileUrl);
// True by default.
// Set to true to automatically embeds all attachments from original input email MSG or EML fileas files into final output PDF.
// Set to false if you don’t want to embed attachments so it will convert only the body of input email.
parameters.Add("embedAttachments", true);
// true by default.
// Converts attachments that are supported by API (doc, docx, html, png, jpg etc) into PDF and merges into output final PDF.
// Non-supported file types are added as PDF attachments (Adobe Reader or another viewer maybe required to view PDF attachments).
// Set to false if you don’t want to convert attachments from original email and want to embed them as original files (as embedded pdf attachments).
parameters.Add("convertAttachments", true);
// Can be Letter, A4, A5, A6 or custom size like 200x200
parameters.Add("paperSize", "Letter");
// Name of output PDF
parameters.Add("name", "email-with-attachments");
// Set to true to run as async job in background (recommended for heavy documents).
parameters.Add("async", Async);
// Convert dictionary of params to JSON
string jsonPayload = JsonConvert.SerializeObject(parameters);
// 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)
{
// Asynchronous job ID
string jobId = json["jobId"].ToString();
// URL of generated JSON file available after the job completion; it will contain URLs of result PDF files.
string resultFileUrl = json["url"].ToString();
// Check the job status in a loop.
// If you don't want to pause the main thread you can rework the code
// to use a separate thread for the status checking and completion.
do
{
string status = CheckJobStatus(jobId); // Possible statuses: "working", "failed", "aborted", "success".
// Display timestamp and status (for demo purposes)
Console.WriteLine(DateTime.Now.ToLongTimeString() + ": " + status);
if (status == "success")
{
// Download output file
webClient.DownloadFile(resultFileUrl, DestinationFile);
Console.WriteLine("Generated PDF file saved as \"{0}\" file.", DestinationFile);
break;
}
else if (status == "working")
{
// Pause for a few seconds
Thread.Sleep(3000);
}
else
{
Console.WriteLine(status);
break;
}
}
while (true);
}
else
{
Console.WriteLine(json["message"].ToString());
}
}
catch (WebException e)
{
Console.WriteLine(e.ToString());
}
webClient.Dispose();
Console.WriteLine();
Console.WriteLine("Press any key...");
Console.ReadKey();
}
/// <summary>
/// Checks Job Status
/// </summary>
static string CheckJobStatus(string jobId)
{
using (WebClient webClient = new WebClient())
{
// Set API Key
webClient.Headers.Add("x-api-key", API_KEY);
string url = "https://api.pdf.co/v1/job/check?jobid=" + jobId;
string response = webClient.DownloadString(url);
JObject json = JObject.Parse(response);
return Convert.ToString(json["status"]);
}
}
}
}
Program.cs
using System;
using System.Collections.Generic;
using System.IO;
using System.Net;
using System.Threading;
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 = "***********************************";
// Source Email file. Both MSG or EML extensions are supported
const string SourceFile = @".\sample.eml";
// Ouput file path
const string DestinationFile = @"output.pdf";
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);
// 1. RETRIEVE THE PRESIGNED URL TO UPLOAD THE FILE.
// * If you already have a direct file URL, skip to the step 3.
// Prepare URL for `Get Presigned URL` API call
string query = Uri.EscapeUriString(string.Format(
"https://api.pdf.co/v1/file/upload/get-presigned-url?contenttype=application/octet-stream&name={0}",
Path.GetFileName(SourceFile)));
try
{
// Execute request
string response = webClient.DownloadString(query);
// Parse JSON response
JObject json = JObject.Parse(response);
if (json["error"].ToObject<bool>() == false)
{
// Get URL to use for the file upload
string uploadUrl = json["presignedUrl"].ToString();
string uploadedFileUrl = json["url"].ToString();
// 2. UPLOAD THE FILE TO CLOUD.
webClient.Headers.Add("content-type", "application/octet-stream");
webClient.UploadFile(uploadUrl, "PUT", SourceFile); // You can use UploadData() instead if your file is byte[] or Stream
webClient.Headers.Remove("content-type");
// 3. Perform convert to PDF
// URL for `PDF FROM Email` API call
var url = "https://api.pdf.co/v1/pdf/convert/from/email";
// Prepare requests params as JSON
Dictionary<string, object> parameters = new Dictionary<string, object>();
// Link to input EML or MSG file to be converted.
// You can pass link to file from Google Drive, Dropbox or another online file service that can generate shareable links.
// You can also use built-in PDF.co cloud storage located at https://app.pdf.co/files or upload your file as temporary file right before making this API call (see Upload and Manage Files section for more details on uploading files via API).
parameters.Add("url", uploadedFileUrl);
// True by default.
// Set to true to automatically embeds all attachments from original input email MSG or EML fileas files into final output PDF.
// Set to false if you don’t want to embed attachments so it will convert only the body of input email.
parameters.Add("embedAttachments", true);
// true by default.
// Converts attachments that are supported by API (doc, docx, html, png, jpg etc) into PDF and merges into output final PDF.
// Non-supported file types are added as PDF attachments (Adobe Reader or another viewer maybe required to view PDF attachments).
// Set to false if you don’t want to convert attachments from original email and want to embed them as original files (as embedded pdf attachments).
parameters.Add("convertAttachments", true);
// Can be Letter, A4, A5, A6 or custom size like 200x200
parameters.Add("paperSize", "Letter");
// Name of output PDF
parameters.Add("name", "email-with-attachments");
// Set to true to run as async job in background (recommended for heavy documents).
parameters.Add("async", true);
// Convert dictionary of params to JSON
string jsonPayload = JsonConvert.SerializeObject(parameters);
// Execute POST request with JSON payload
response = webClient.UploadString(url, jsonPayload);
// Parse JSON response
json = JObject.Parse(response);
if (json["error"].ToObject<bool>() == false)
{
// Asynchronous job ID
string jobId = json["jobId"].ToString();
// URL of generated TXT file that will be available after the job completion
string resultFileUrl = json["url"].ToString();
// Check the job status in a loop.
// If you don't want to pause the main thread you can rework the code
// to use a separate thread for the status checking and completion.
do
{
string status = CheckJobStatus(jobId); // Possible statuses: "working", "failed", "aborted", "success".
// Display timestamp and status (for demo purposes)
Console.WriteLine(DateTime.Now.ToLongTimeString() + ": " + status);
if (status == "success")
{
// Download output file
webClient.DownloadFile(resultFileUrl, DestinationFile);
Console.WriteLine("Generated PDF file saved as \"{0}\" file.", DestinationFile);
break;
}
else if (status == "working")
{
// Pause for a few seconds
Thread.Sleep(2000);
}
else
{
Console.WriteLine(status);
break;
}
}
while (true);
}
else
{
Console.WriteLine(json["message"].ToString());
}
}
else
{
Console.WriteLine(json["message"].ToString());
}
}
catch (WebException e)
{
Console.WriteLine(e.ToString());
}
webClient.Dispose();
Console.WriteLine();
Console.WriteLine("Press any key...");
Console.ReadKey();
}
/// <summary>
/// Checks Job Status
/// </summary>
static string CheckJobStatus(string jobId)
{
using (WebClient webClient = new WebClient())
{
// Set API Key
webClient.Headers.Add("x-api-key", API_KEY);
string url = "https://api.pdf.co/v1/job/check?jobid=" + jobId;
string response = webClient.DownloadString(url);
JObject json = JObject.Parse(response);
return Convert.ToString(json["status"]);
}
}
}
}
Program.cs
using System;
using RestSharp;
namespace HelloWorldApplication {
class HelloWorld {
static void Main(string[] args) {
var client = new RestClient("https://api.pdf.co/v1/pdf/convert/from/email");
client.Timeout = -1;
var request = new RestRequest(Method.POST);
request.AddHeader("Content-Type", "application/json");
request.AddHeader("x-api-key", "{{x-api-key}}");
// You can also upload your own file into PDF.co and use it as url. Check "Upload File" samples for code snippets: https://github.com/bytescout/pdf-co-api-samples/tree/master/File%20Upload/
request.AddParameter("application/json", "{\n \"url\": \"https://bytescout-com.s3-us-west-2.amazonaws.com/files/demo-files/cloud-api/email-to-pdf/sample.eml\",\n \"embedAttachments\": true,\n \"name\": \"email-with-attachments\",\n \"async\": false,\n \"encrypt\": false,\n \"profiles\": \"{\\\"orientation\\\": \\\"landscape\\\", \\\"paperSize\\\": \\\"letter\\\" }\"\n}", ParameterType.RequestBody);
IRestResponse response = client.Execute(request);
Console.WriteLine(response.Content);
}
}
}
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.