chore: bump tempo.ts to 0.14.2 and remove blockSignTransaction middleware

apps/fee-payer/src/index.ts

@@ -15,7 +15,6 @@ import {
 	captureEvent,
 	getRequestContext,
 } from './lib/posthog.js'
-import { blockSignTransactionMiddleware } from './lib/block-sign-transaction.js'
 import { rateLimitMiddleware } from './lib/rate-limit.js'
 import { getUsage } from './lib/usage.js'
 
@@ -88,7 +87,7 @@ app.get(
 	},
 )
 
-app.all('*', blockSignTransactionMiddleware, rateLimitMiddleware, async (c) => {
+app.all('*', rateLimitMiddleware, async (c) => {
 	const requestContext = getRequestContext(c.req.raw)
 
 	const handler = Handler.feePayer({

apps/fee-payer/src/lib/rate-limit.ts

@@ -22,15 +22,21 @@ export async function rateLimitMiddleware(c: Context, next: Next) {
 	try {
 		const clonedRequest = await cloneRawRequest(c.req)
 		const request = RpcRequest.from((await clonedRequest.json()) as never)
-		const serialized = request.params?.[0] as `0x76${string}`
+		const serialized = request.params?.[0]
 
-		if (serialized?.startsWith('0x76')) {
-			const transaction = Transaction.deserialize(serialized)
+		if (
+			typeof serialized === 'string' &&
+			(serialized.startsWith('0x76') || serialized.startsWith('0x78'))
+		) {
+			const transaction = Transaction.deserialize(serialized as `0x76${string}`)
 			// biome-ignore lint/suspicious/noExplicitAny: _
 			const from = (transaction as any).from
 
 			if (!from) {
-				return c.json({ error: 'Unable to determine sender for rate limiting' }, 400)
+				return c.json(
+					{ error: 'Unable to determine sender for rate limiting' },
+					400,
+				)
 			}
 
 			const { success } = await env.AddressRateLimiter.limit({ key: from })

apps/fee-payer/test/e2e.test.ts

@@ -137,13 +137,11 @@ describe('fee-payer integration', () => {
 				}),
 			})
 
-			expect(response.status).toBe(403)
+			expect(response.status).toBe(200)
 			const data = (await response.json()) as {
-				error?: { code: number; message: string }
+				error?: { code: number; name: string }
 			}
 			expect(data.error).toBeDefined()
-			expect(data.error?.code).toBe(-32601)
-			expect(data.error?.message).toBe('Method not supported')
 		})
 
 		it('handles CORS preflight requests', async () => {

apps/fee-payer/test/rate-limit.test.ts

@@ -46,23 +46,4 @@ describe('rate-limit middleware', () => {
 		expect(response.status).toBe(200)
 	})
 
-	it('blocks eth_signTransaction before rate limiting runs', async () => {
-		const response = await SELF.fetch('https://fee-payer.test/', {
-			method: 'POST',
-			headers: { 'Content-Type': 'application/json' },
-			body: JSON.stringify({
-				jsonrpc: '2.0',
-				id: 1,
-				method: 'eth_signTransaction',
-				params: [{ to: '0x0000000000000000000000000000000000000000' }],
-			}),
-		})
-
-		expect(response.status).toBe(403)
-		const data = (await response.json()) as {
-			error?: { code: number; message: string }
-		}
-		expect(data.error?.code).toBe(-32601)
-		expect(data.error?.message).toBe('Method not supported')
-	})
 })

pnpm-workspace.yaml

@@ -66,7 +66,7 @@ catalog:
   sonda: ^0.11.1
   tailwind-merge: ^3.5.0
   tailwindcss: ^4.2.1
-  tempo.ts: ^0.14.0
+  tempo.ts: ^0.14.2
   testcontainers: ^11.11.0
   tidx.ts: ^0.1.0
   tw-animate-css: ^1.4.0