trade: prevent create wallet when rpc getLogs req fails

trade.renegade.fi/app/api/get-logs/route.ts

@@ -0,0 +1,36 @@
+import { chain } from "@/lib/viem"
+import { NextRequest } from "next/server"
+import { createPublicClient, http, parseAbiItem } from "viem"
+
+export const runtime = "edge"
+
+// Necessary because public RPC does not support getting logs
+const viemClient = createPublicClient({
+  chain,
+  transport: http(process.env.RPC_URL),
+})
+
+export async function GET(req: NextRequest) {
+  try {
+    const blinderShare = BigInt(
+      req.nextUrl.searchParams.get("blinderShare") || "0"
+    )
+    if (!blinderShare) {
+      throw new Error("Blinder share is required")
+    }
+    const logs = await viemClient.getLogs({
+      address: process.env.NEXT_PUBLIC_DARKPOOL_CONTRACT,
+      event: parseAbiItem(
+        "event WalletUpdated(uint256 indexed wallet_blinder_share)"
+      ),
+      args: {
+        wallet_blinder_share: blinderShare,
+      },
+      fromBlock: BigInt(process.env.FROM_BLOCK || 0),
+    })
+    return new Response(JSON.stringify({ logs: logs.length }))
+  } catch (error) {
+    console.error(error)
+    return new Response(JSON.stringify({ error }), { status: 500 })
+  }
+}

trade.renegade.fi/app/providers.tsx

@@ -21,8 +21,11 @@ import {
   createConfig as createSDKConfig,
   useStatus,
 } from "@renegade-fi/react"
-import { focusManager } from "@tanstack/react-query"
-import { QueryClient, QueryClientProvider } from "@tanstack/react-query"
+import {
+  QueryClient,
+  QueryClientProvider,
+  focusManager,
+} from "@tanstack/react-query"
 import { ReactQueryDevtools } from "@tanstack/react-query-devtools"
 import { ConnectKitProvider, getDefaultConfig } from "connectkit"
 import dayjs from "dayjs"

trade.renegade.fi/components/steppers/create-stepper/steps/default-step.tsx

@@ -18,7 +18,7 @@ import {
   Text,
 } from "@chakra-ui/react"
 import { useConfig } from "@renegade-fi/react"
-import { connect } from "@renegade-fi/react/actions"
+import { connect, getSkRoot } from "@renegade-fi/react/actions"
 import { CircleHelp, Unplug } from "lucide-react"
 import { toast } from "sonner"
 import { useLocalStorage } from "usehooks-ts"
@@ -66,7 +66,17 @@ export function DefaultStep() {
           throw new Error("Invalid signature")
         }
         config.setState((x) => ({ ...x, seed: data }))
-        const res = await connect(config)
+        const skRoot = getSkRoot(config)
+        const blinderShare = config.utils.derive_blinder_share(skRoot)
+
+        // Check if WalletUpdated events exist onchain
+        const logs = await fetch(`/api/get-logs?blinderShare=${blinderShare}`)
+          .then((res) => res.json())
+          .then((data) => data.logs)
+
+        const res = await connect(config, {
+          isCreateWallet: logs === 0,
+        })
         if (res?.job) {
           const { isLookup, job } = res
           toast.promise(job, {

trade.renegade.fi/package.json

@@ -22,7 +22,7 @@
     "@datadog/browser-rum": "^5.15.0",
     "@emotion/react": "^11.11.1",
     "@emotion/styled": "^11.11.0",
-    "@renegade-fi/react": "^0.0.47",
+    "@renegade-fi/react": "^0.0.49",
     "@t3-oss/env-nextjs": "^0.6.0",
     "@tanstack/react-query": "^5.24.1",
     "@vercel/analytics": "^1.2.2",