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| 1 | using System; | |
| 2 | using System.Collections.Generic; | |
| 3 | using System.IO; | |
| 4 | using System.IO.Compression; | |
| 5 | using System.Linq; | |
| 6 | using System.Text; | |
| 7 | - | using System.Web.Script.Serialization; // Needs Reference to 'System.Web.Extensions.dll' |
| 7 | + | using System.Web.Script.Serialization; // Needs reference to 'System.Web.Extensions.dll' |
| 8 | - | using ZMQ; // Needs Reference to 'clrzmq.dll' and adding 'libzmq.dll' to project |
| 8 | + | using ZMQ; // Needs reference to 'clrzmq.dll' and adding 'libzmq.dll' to project |
| 9 | // 'clrzmq' can be found at: https://github.com/zeromq/clrzmq/downloads | |
| 10 | ||
| 11 | namespace EMDR_Client | |
| 12 | {
| |
| 13 | public class Program | |
| 14 | {
| |
| 15 | private static void Main() | |
| 16 | {
| |
| 17 | using (var context = new Context()) | |
| 18 | {
| |
| 19 | using (var subscriber = context.Socket(SocketType.SUB)) | |
| 20 | {
| |
| 21 | //Connect to the first publicly available relay. | |
| 22 | subscriber.Connect("tcp://relay-linode-atl-1.eve-emdr.com:8050");
| |
| 23 | ||
| 24 | // Disable filtering. | |
| 25 | subscriber.SetSockOpt(SocketOpt.SUBSCRIBE, Encoding.UTF8.GetBytes(""));
| |
| 26 | ||
| 27 | // Alternatively 'Subscribe' can be used | |
| 28 | //subscriber.Subscribe("", Encoding.UTF8);
| |
| 29 | ||
| 30 | while (true) | |
| 31 | {
| |
| 32 | try | |
| 33 | {
| |
| 34 | // Receive compressed raw market data. | |
| 35 | var receivedData = subscriber.Recv(); | |
| 36 | ||
| 37 | // The following code lines remove the need of 'zlib' usage; | |
| 38 | // 'zlib' actually uses the same algorith as 'DeflateStream'. | |
| 39 | // To make the data compatible for 'DeflateStream', we only have to remove | |
| 40 | // the four last bytes which are the adler32 checksum and | |
| 41 | // the two first bytes which are the 'zlib' header. | |
| 42 | byte[] decompressed; | |
| 43 | byte[] choppedRawData = new byte[(receivedData.Length - 4)]; | |
| 44 | Array.Copy(receivedData, choppedRawData, choppedRawData.Length); | |
| 45 | choppedRawData = choppedRawData.Skip(2).ToArray(); | |
| 46 | ||
| 47 | // Decompress the raw market data. | |
| 48 | using (MemoryStream inStream = new MemoryStream(choppedRawData)) | |
| 49 | using (MemoryStream outStream = new MemoryStream()) | |
| 50 | {
| |
| 51 | DeflateStream outZStream = new DeflateStream(inStream, CompressionMode.Decompress); | |
| 52 | outZStream.CopyTo(outStream); | |
| 53 | decompressed = outStream.ToArray(); | |
| 54 | } | |
| 55 | ||
| 56 | // Transform data into JSON strings. | |
| 57 | string marketJson = Encoding.UTF8.GetString(decompressed); | |
| 58 | ||
| 59 | // Un-serialize the JSON data to a dictionary. | |
| 60 | var serializer = new JavaScriptSerializer(); | |
| 61 | var dictionary = serializer.Deserialize<Dictionary<string, object>>(marketJson); | |
| 62 | ||
| 63 | // Dump the market data to console or, you know, do more fun things here. | |
| 64 | foreach (KeyValuePair<string, object> pair in dictionary) | |
| 65 | {
| |
| 66 | Console.WriteLine("{0}: {1}", pair.Key, pair.Value);
| |
| 67 | } | |
| 68 | Console.WriteLine(); | |
| 69 | } | |
| 70 | catch (ZMQ.Exception ex) | |
| 71 | {
| |
| 72 | Console.WriteLine("ZMQ Exception occurred : {0}", ex.Message);
| |
| 73 | } | |
| 74 | } | |
| 75 | } | |
| 76 | } | |
| 77 | } | |
| 78 | } | |
| 79 | } |