feat(wip): add bundler client example and why it's worse

Author: moldy530

account-kit/infra/src/client/viem.ts

@@ -0,0 +1,33 @@
+import { createBundlerClient } from "viem/account-abstraction";
+import type { AlchemySmartAccountClientConfig } from "./smartAccountClient";
+
+// Yea this isn't great or going to work well, we should just keep using our smart account client, but change the account type to match the viem one
+export const foo = (params: AlchemySmartAccountClientConfig) => {
+  const cl = createBundlerClient({
+    transport: params.transport,
+    chain: params.chain,
+    paymasterContext: { policyId: params.policyId },
+    paymaster: {
+      async getPaymasterStubData(parameters) {
+        if (!("policyId" in parameters.context)) {
+          throw new Error("policyId is required");
+        }
+
+        throw new Error(
+          "this is the biggest issue with viem's approach. we can't skip gas estimation during paymaster flows..."
+        );
+      },
+      async getPaymasterData(parameters) {
+        throw new Error("port over the paymaster data middleware");
+      },
+    },
+    userOperation: {
+      // This doesn't have the ability to skip gas estimation AFAICT
+      estimateFeesPerGas(parameters) {
+        throw new Error("port over the fee estimator middleware");
+      },
+    },
+  });
+
+  return cl;
+};