Implement payment gatway of coinpayments

Question

Hi, I am face problem in Implement payment gatway of coinpayments in C# .please can anyone help .....this payment getway implement in C# language and throught API

Nanddeep Nachan · Answer

Try by adding below lines at beginning of your code ServicePointManager.Expect100Continue = true ; ServicePointManager.SecurityProtocol = SecurityProtocolType.Tls12;

Nanddeep Nachan · Answer

Here is Full fledged C# wrapper for Coinpayments API: https://github.com/rockstardev/CoinpaymentsApi

saleem usmani · Answer

Thanks for reply Nanddeep Nachan Sir , I am change our code acordding to your but face same problem still please any one suggetion sir , error : - The request was aborted: Could not create SSL/TLS secure channel.

Nanddeep Nachan · Answer

Also, plesae refer thread here: https://www.c-sharpcorner.com/forums/ssl-httpwebrequest-in-c-sharp-could-not-create-ssltls-secure-channel

saleem usmani · Answer

Hi Nanddeep Nachan Sir, I am implement in WebBased website not project i am using c# code in our web code from https://www.coinpayments.net/apidoc-code -> C# Library. public Dictionary CallAPI( string cmd, SortedList parms = null ) { if (parms == null ) { parms = new SortedList(); } parms[ "version" ] = "1" ; parms[ "key" ] = s_pubkey; parms[ "cmd" ] = cmd; parms[ "format" ] = "json" ; string post_data = "" ; foreach (KeyValuePair parm in parms) { if (post_data.Length > 0) { post_data += "&" ; } post_data += parm.Key + "=" + Uri.EscapeDataString(parm.Value); } byte [] keyBytes = encoding.GetBytes(s_privkey); byte [] postBytes = encoding.GetBytes(post_data); var hmacsha512 = new System.Security.Cryptography.HMACSHA512(keyBytes); string hmac = BitConverter.ToString(hmacsha512.ComputeHash(postBytes)).Replace( "-" , string .Empty); // do the post: ServicePointManager.SecurityProtocol = SecurityProtocolType.Ssl3 | SecurityProtocolType.Tls; System.Net.WebClient cl = new System.Net.WebClient(); cl.Headers.Add( "Content-Type" , "application/x-www-form-urlencoded" ); cl.Headers.Add( "HMAC" , hmac); cl.Encoding = encoding; var ret = new Dictionary(); try { string resp = cl.UploadString( "https://www.coinpayments.net/api.php" , post_data); var decoder = new System.Web.Script.Serialization.JavaScriptSerializer(); ret = decoder.Deserialize>(resp); } catch (System.Net.WebException e) { ret[ "error" ] = "Exception while contacting CoinPayments.net: " + e.Message; } catch (Exception e) { ret[ "error" ] = "Unknown exception: " + e.Message; } lblmsg.Text = ret[ "error" ]; return ret; } Code call on Button click event protected void btn_Click( object sender, EventArgs e) { CallAPI( "get_basic_info" , null ); } use this code and get error-: The request was aborted: Could not create SSL/TLS secure channel. Please help sir

saleem usmani · Answer

please anyone help.......................