Paytm Checksum in Asp.net core

Question

In Paytm for generating checksums for .NET, DLL must be imported but I cannot use the dll in ASP.NET Core. Please let me know how to generate and validate a checksum.

Answer 1

As Paytm has updated Checksum class and modified checksum generation methods. Latest Nuget Package with Latest DLL from Paytm

You can find Updated documentation for Paytm Payment Gateway API Here

Answer 2

Depending on the version of .NET Core you are running, you might need to import System.Security.Cryptography.Algorithms

That said, you can generate an MD5 Checksum with the following

using (var md5 = MD5.Create())
{
    using (var stream = File.OpenRead(filename))
    {
         return Encoding.Default.GetString(md5.ComputeHash(stream));
    }
}

Answer 3

You would need to use .NET Core 2.0 and paytm dll for .net 4.5 (link given below). https://github.com/Paytm-Payments/Paytm_Web_Sample_Kit_dotNet/tree/master/.net_4.5

.NET Core 2.0 supports adding .NET Framework libraries as a reference. You would need to use paytm dll version compiled with .net framework 4.5 or above in order to add it to a .net core 2.0 project.

This worked for me.

Answer 4

you can find it here

https://www.nuget.org/packages/AstroBasic.PayTM.Library.NETCORE/

i have created this for my self, but feel free to use it.