An example how to use this library with viem.sh would be great.

[johanneskares]

The new kid on the block is viem.sh

It would be great to see an example with this library.

[johanneskares]

Here's how I solved it at the end:

import { DefenderRelayProvider } from "defender-relay-client/lib/web3";

const openZeppelinDefenderCredentials = {
  apiKey: process.env.OPENZEPPELIN_DEFENDER_API_KEY ?? "",
  apiSecret: process.env.OPENZEPPELIN_DEFENDER_SECRET ?? "",
};

const web3 = new DefenderRelayProvider(openZeppelinDefenderCredentials, {
  speed: "fast",
});

const client = createWalletClient({
  account: "0x79e084564564b4808559b17a9f6062342340", //  Your Defender Address goes here
  chain: getChain(),
  transport: custom({
    async request({ method, params }) {
      return await new Promise(function (resolve, reject) {
        web3.send({ method, params, jsonrpc: "2.0" }, (error, result) => {
          console.log("result", method, params, error, result);
          if (error != null || result?.error != null || result == null) {
            reject(error);
          } else {
            resolve(result.result);
          }
        });
      });
    },
  }),
});