make seed phrase optional

.env.example

@@ -4,4 +4,3 @@ KV_REST_API_TOKEN=''
 KV_REST_API_URL=''
 NEXT_PUBLIC_URL='http://localhost:3000'
 NEXTAUTH_URL='http://localhost:3000'
-NEYNAR_API_KEY='FARCASTER_V2_FRAMES_DEMO'

bin/index.js

@@ -6,6 +6,7 @@ import { dirname } from 'path';
 import { execSync } from 'child_process';
 import fs from 'fs';
 import path from 'path';
+import { mnemonicToAccount } from 'viem/accounts';
 import { generateManifest } from './manifest.js';
 
 const __filename = fileURLToPath(import.meta.url);
@@ -14,6 +15,33 @@ const __dirname = dirname(__filename);
 const REPO_URL = 'https://github.com/lucas-neynar/frames-v2-quickstart.git';
 const SCRIPT_VERSION = JSON.parse(fs.readFileSync(path.join(__dirname, '..', 'package.json'), 'utf8')).version;
 
+async function lookupFidByCustodyAddress(custodyAddress, apiKey) {
+  if (!apiKey) {
+    throw new Error('Neynar API key is required');
+  }
+
+  const response = await fetch(
+    `https://api.neynar.com/v2/farcaster/user/custody-address?custody_address=${custodyAddress}`,
+    {
+      headers: {
+        'accept': 'application/json',
+        'x-api-key': apiKey
+      }
+    }
+  );
+
+  if (!response.ok) {
+    throw new Error(`Failed to lookup FID: ${response.statusText}`);
+  }
+
+  const data = await response.json();
+  if (!data.user?.fid) {
+    throw new Error('No FID found for this custody address');
+  }
+
+  return data.user.fid;
+}
+
 async function init() {
   const answers = await inquirer.prompt([
     {
@@ -59,15 +87,34 @@ async function init() {
     {
       type: 'password',
       name: 'seedPhrase',
-      message: 'Enter your Farcaster custody account seed phrase:',
+      message: 'Enter your Farcaster custody account seed phrase to generate a signed manifest for your frame\n(optional -- leave blank to create an unsigned frame)\n(seed phrase is only ever stored locally)\n\nSeed phrase:',
+      default: null
+    },
+    {
+      type: 'confirm',
+      name: 'useNeynar',
+      message: 'Would you like to use Neynar in your frame?',
+      default: true
+    }
+  ]);
+
+  // If using Neynar, ask for API key
+  if (answers.useNeynar) {
+    const neynarAnswers = await inquirer.prompt([
+      {
+        type: 'password',
+        name: 'neynarApiKey',
+        message: 'Enter your Neynar API key:',
         validate: (input) => {
           if (input.trim() === '') {
-          return 'Seed phrase cannot be empty';
+            return 'Neynar API key cannot be empty';
           }
           return true;
         }
       }
     ]);
+    answers.neynarApiKey = neynarAnswers.neynarApiKey;
+  }
 
   const projectName = answers.projectName;
   const projectPath = path.join(process.cwd(), projectName);
@@ -99,6 +146,13 @@ async function init() {
   delete packageJson.license;
   delete packageJson.bin;
   delete packageJson.files;
+
+  // Add Neynar dependencies if selected
+  if (answers.useNeynar) {
+    packageJson.dependencies['@neynar/nodejs-sdk'] = '^2.19.0';
+    packageJson.dependencies['@neynar/react'] = '^1.2.0';
+  }
+
   fs.writeFileSync(packageJsonPath, JSON.stringify(packageJson, null, 2));
 
   // Handle .env file
@@ -110,25 +164,36 @@ async function init() {
     const envExampleContent = fs.readFileSync(envExamplePath, 'utf8');
     // Write it to .env
     fs.writeFileSync(envPath, envExampleContent);
-    // Append project name, description, and button text to .env
+    
+    // Generate custody address from seed phrase
+    if (answers.seedPhrase) {
+      const account = mnemonicToAccount(answers.seedPhrase);
+      const custodyAddress = account.address;
+
+      // Look up FID using custody address
+      console.log('\nLooking up FID...', answers.useNeynar, answers.neynarApiKey);
+      const neynarApiKey = answers.useNeynar ? answers.neynarApiKey : 'FARCASTER_V2_FRAMES_DEMO';
+      console.log('neynarApiKey', neynarApiKey);
+      const fid = await lookupFidByCustodyAddress(custodyAddress, neynarApiKey);
+
+      // Write seed phrase and FID to .env for manifest signature generation
+      fs.appendFileSync(envPath, `\nSEED_PHRASE="${answers.seedPhrase}"`);
+      fs.appendFileSync(envPath, `\nFID="${fid}"`);
+    }
+
+    // Append all environment variables
     fs.appendFileSync(envPath, `\nNEXT_PUBLIC_FRAME_NAME="${answers.projectName}"`);
     fs.appendFileSync(envPath, `\nNEXT_PUBLIC_FRAME_DESCRIPTION="${answers.description}"`);
     fs.appendFileSync(envPath, `\nNEXT_PUBLIC_FRAME_BUTTON_TEXT="${answers.buttonText}"`);
     fs.appendFileSync(envPath, `\nNEXT_PUBLIC_FRAME_SPLASH_IMAGE_URL="${answers.splashImageUrl}"`);
+    fs.appendFileSync(envPath, `\nNEYNAR_API_KEY="${answers.useNeynar ? answers.neynarApiKey : 'FARCASTER_V2_FRAMES_DEMO'}"`);
+    
     fs.unlinkSync(envExamplePath);
     console.log('\nCreated .env file from .env.example');
   } else {
     console.log('\n.env.example does not exist, skipping copy and remove operations');
   }
 
-  // Generate manifest and write to public folder
-  console.log('\nGenerating manifest...');
-  const manifest = await generateManifest(answers.seedPhrase, projectPath);
-  fs.writeFileSync(
-    path.join(projectPath, 'public/manifest.json'),
-    JSON.stringify(manifest)
-  );
-
   // Update README
   console.log('\nUpdating README...');
   const readmePath = path.join(projectPath, 'README.md');

package.json

@@ -41,8 +41,8 @@
     "next": "15.0.3",
     "next-auth": "^4.24.11",
     "ox": "^0.4.2",
-    "react": "^18.2.0",
-    "react-dom": "^18.2.0",
+    "react": "^19",
+    "react-dom": "^19",
     "tailwind-merge": "^2.6.0",
     "tailwindcss-animate": "^1.0.7",
     "viem": "^2.23.6",
@@ -50,8 +50,8 @@
   },
   "devDependencies": {
     "@types/node": "^20",
-    "@types/react": "^18",
-    "@types/react-dom": "^18",
+    "@types/react": "^19",
+    "@types/react-dom": "^19",
     "eslint": "^8",
     "eslint-config-next": "15.0.3",
     "postcss": "^8",

src/app/.well-known/farcaster.json/route.ts

@@ -1,34 +1,12 @@
-import { readFileSync } from 'fs';
-import { join } from 'path';
+import { NextResponse } from 'next/server';
+import { generateFarcasterMetadata } from '../../../lib/utils';
 
 export async function GET() {
-  const appUrl = process.env.NEXT_PUBLIC_URL;
-  const splashImageUrl = process.env.NEXT_PUBLIC_FRAME_SPLASH_IMAGE_URL || `${appUrl}/splash.png`;
-
-  let accountAssociation; // TODO: add type
   try {
-    const manifestPath = join(process.cwd(), 'public/manifest.json');
-    const manifest = JSON.parse(readFileSync(manifestPath, 'utf-8'));
-    accountAssociation = manifest;
+    const config = await generateFarcasterMetadata();
+    return NextResponse.json(config);
   } catch (error) {
-    console.warn('Warning: manifest.json not found or invalid. Frame will not be associated with an account.');
-    accountAssociation = null;
+    console.error('Error generating metadata:', error);
+    return NextResponse.json({ error: error.message }, { status: 500 });
   }
-
-  const config = {
-    ...(accountAssociation && { accountAssociation }),
-    frame: {
-      version: "1",
-      name: process.env.NEXT_PUBLIC_FRAME_NAME || "Frames v2 Demo",
-      iconUrl: `${appUrl}/icon.png`,
-      homeUrl: appUrl,
-      imageUrl: `${appUrl}/frames/hello/opengraph-image`,
-      buttonTitle: process.env.NEXT_PUBLIC_FRAME_BUTTON_TEXT || "Launch Frame",
-      splashImageUrl,
-      splashBackgroundColor: "#f7f7f7",
-      webhookUrl: `${appUrl}/api/webhook`,
-    },
-  };
-
-  return Response.json(config);
 }

src/app/app.tsx

@@ -9,7 +9,7 @@ const Demo = dynamic(() => import("~/components/Demo"), {
 });
 
 export default function App(
-  { title }: { title?: string } = { title: "Frames v2 Demo" }
+  { title }: { title?: string } = { title: process.env.NEXT_PUBLIC_FRAME_NAME || "Frames v2 Demo" }
 ) {
   return <Demo title={title} />;
 }

src/lib/neynar.ts

@@ -0,0 +1,18 @@
+import { NeynarAPIClient } from '@neynar/nodejs-sdk';
+
+let neynarClient: NeynarAPIClient | null = null;
+
+export function getNeynarClient() {
+  if (!neynarClient) {
+    const apiKey = process.env.NEYNAR_API_KEY;
+    if (!apiKey) {
+      throw new Error('NEYNAR_API_KEY not configured');
+    }
+    neynarClient = new NeynarAPIClient(apiKey);
+  }
+  return neynarClient;
+}
+
+// Example usage:
+// const client = getNeynarClient();
+// const user = await client.lookupUserByFid(fid); 

src/lib/utils.ts

@@ -1,6 +1,79 @@
 import { clsx, type ClassValue } from "clsx"
 import { twMerge } from "tailwind-merge"
+import { mnemonicToAccount } from 'viem/accounts';
 
 export function cn(...inputs: ClassValue[]) {
   return twMerge(clsx(inputs))
 }
+
+export function getSecretEnvVars() {
+  const seedPhrase = process.env.SEED_PHRASE;
+  const fid = process.env.FID;
+  
+  if (!seedPhrase || !fid) {
+    return null;
+  }
+
+  return { seedPhrase, fid };
+}
+
+export async function generateFarcasterMetadata() {
+  const appUrl = process.env.NEXT_PUBLIC_URL;
+  if (!appUrl) {
+    throw new Error('NEXT_PUBLIC_URL not configured');
+  }
+
+  // Get the domain from the URL (without https:// prefix)
+  const domain = new URL(appUrl).hostname;
+  console.log('Using domain for manifest:', domain);
+
+  const secretEnvVars = getSecretEnvVars();
+  if (!secretEnvVars) {
+    console.warn('No seed phrase or FID found in environment variables -- generating unsigned metadata');
+  }
+
+  let accountAssociation;
+  if (secretEnvVars) {
+    // Generate account from seed phrase
+    const account = mnemonicToAccount(secretEnvVars.seedPhrase);
+    const custodyAddress = account.address;
+
+    const header = {
+      fid: parseInt(secretEnvVars.fid),
+      type: 'custody',
+      key: custodyAddress,
+    };
+    const encodedHeader = Buffer.from(JSON.stringify(header), 'utf-8').toString('base64');
+
+    const payload = {
+      domain
+    };
+    const encodedPayload = Buffer.from(JSON.stringify(payload), 'utf-8').toString('base64url');
+
+    const signature = await account.signMessage({ 
+      message: `${encodedHeader}.${encodedPayload}`
+    });
+    const encodedSignature = Buffer.from(signature, 'utf-8').toString('base64url');
+
+    accountAssociation = {
+      header: encodedHeader,
+      payload: encodedPayload,
+      signature: encodedSignature
+    };
+  }
+
+  return {
+    accountAssociation,
+    frame: {
+      version: "1",
+      name: process.env.NEXT_PUBLIC_FRAME_NAME || "Frames v2 Demo",
+      iconUrl: `${appUrl}/icon.png`,
+      homeUrl: appUrl,
+      imageUrl: `${appUrl}/opengraph-image`,
+      buttonTitle: process.env.NEXT_PUBLIC_FRAME_BUTTON_TEXT || "Launch Frame",
+      splashImageUrl: process.env.NEXT_PUBLIC_FRAME_SPLASH_IMAGE_URL || `${appUrl}/splash.png`,
+      splashBackgroundColor: "#f7f7f7",
+      webhookUrl: `${appUrl}/api/webhook`,
+    },
+  };
+}