WalletConnectSharp

WalletConnectSharp is an implementation of the WalletConnect protocol (currently only v1) using .NET and (optinoally) NEthereum. This library implements the WalletConnect Technical Specification in .NET to allow C# dApps makers to add support for the open WalletConnect protocol.

Usage

First you must define the ClientMeta you would like to send along with your connect request. This is what is shown in the Wallet UI

var metadata = new ClientMeta()
{
    Description = "This is a test of the Nethereum.WalletConnect feature",
    Icons = new[] {"https://app.warriders.com/favicon.ico"},
    Name = "WalletConnect Test",
    URL = "https://app.warriders.com"
};

Once you have the metadata, you can create the WalletConnect object

var walletConnect = new WalletConnect(metadata);
Console.WriteLine(walletConnect.URI);

This will print the wc connect code into the console. You can transform this text into a QR code or use it for deep linking. Once you have the wc link displayed to the user, you can then call Connect(). The Connect() function will block until either a successful or rejected session response

var walletConnectData = await walletConnect.Connect();

This function returns a Task<WCSessionData> object, so it can be awaited if your using async/await. The WCSessionData has data about the current session (accounts, chainId, etc..)

Console.WriteLine(walletConnectData.accounts[0]);
Console.WriteLine(walletConnectData.chainId);

Connecting with NEthereum

With the above, you have enough to use the base WalletConnect protocol. However, this library comes with an NEthereum provider implementation. To use it, you simply invoke CreateProvider(url) or CreateProvider(IClient). You are required to specify an additional RPC URL or a custom IClient because the WalletConnect protocol does not perform read operations (eth_call, eth_estimateGas, etc..), so you must provide either an Infura Project ID, a node's HTTP url for HttpProvider or a custom IClient.

Here is an example

var web3 = new Web3(walletConnect.CreateProvider(new Uri("https://mainnet.infura.io/v3/<infruaId>"));

Examples

There are examples in the examples directory. If you are using VS Code, you can invoke the console example by running the .NET Core Launch (console) launch configuration. For more information on debugging and launch configurations, refer to the VS Code documentation