Lindy deploy integration

Lindy Deploy Integration

Overview

Lindy agents run on Lindy's managed infrastructure. Deployment focuses on your integration layer: webhook receivers, callback handlers, and application code that Lindy agents interact with via HTTP Request actions and webhook triggers.

Prerequisites

• Lindy agents configured and tested
• Application with webhook receiver endpoints
• Deployment platform (Vercel, Railway, Docker, AWS, GCP)
• Lindy API key and webhook secrets

Instructions

Step 1: Prepare Application for Deployment

// src/server.ts — Production-ready Lindy webhook receiver
import express from 'express';
import helmet from 'helmet';

const app = express();
app.use(helmet());
app.use(express.json({ limit: '1mb' }));

// Health check for load balancer
app.get('/health', (req, res) => {
  res.json({
    status: 'ok',
    timestamp: new Date().toISOString(),
    version: process.env.APP_VERSION || 'unknown',
  });
});

// Lindy webhook receiver with auth verification
app.post('/lindy/callback', (req, res) => {
  const auth = req.headers.authorization;
  if (auth !== `Bearer ${process.env.LINDY_WEBHOOK_SECRET}`) {
    return res.status(401).json({ error: 'Unauthorized' });
  }

  // Respond immediately, process async
  res.json({ received: true });

  // Async processing
  processWebhook(req.body).catch(err => {
    console.error('Webhook processing error:', err);
  });
});

async function processWebhook(payload: any) {
  const { taskId, status, result } = payload;
  // Your business logic here
  console.log(`Task ${taskId}: ${status}`, result);
}

const PORT = process.env.PORT || 3000;
app.listen(PORT, () => console.log(`Listening on :${PORT}`));

Step 2: Docker Deployment

# Dockerfile
FROM node:20-alpine
WORKDIR /app
COPY package*.json ./
RUN npm ci --production
COPY dist/ ./dist/
EXPOSE 3000
ENV NODE_ENV=production
HEALTHCHECK --interval=30s --timeout=3s \
  CMD wget -qO- http://localhost:3000/health || exit 1
CMD ["node", "dist/server.js"]

# Build and run
docker build -t lindy-integration .
docker run -d \
  -p 3000:3000 \
  -e LINDY_API_KEY="$LINDY_API_KEY" \
  -e LINDY_WEBHOOK_SECRET="$LINDY_WEBHOOK_SECRET" \
  --name lindy-app \
  lindy-integration

Step 3: Vercel Deployment

# Install Vercel CLI
npm i -g vercel

# Set secrets
vercel secrets add lindy-api-key "$LINDY_API_KEY"
vercel secrets add lindy-webhook-secret "$LINDY_WEBHOOK_SECRET"

# Deploy
vercel --prod

// vercel.json
{
  "env": {
    "LINDY_API_KEY": "@lindy-api-key",
    "LINDY_WEBHOOK_SECRET": "@lindy-webhook-secret"
  }
}

Step 4: Update Lindy Agent Webhook URLs

After deployment, update all Lindy agents with production URLs:

1. In Lindy dashboard, open each agent with a webhook trigger

2. Navigate to the HTTP Request action (if agent calls your API)

3. Update URL from dev/staging to production:

   OLD: https://abc123.ngrok.io/lindy/callback
   NEW: https://api.yourapp.com/lindy/callback
   

4. For webhook triggers, callers need the Lindy-generated URL (unchanged)

5. Test with a sample webhook to verify end-to-end

Step 5: Post-Deploy Verification

#!/bin/bash
echo "=== Post-Deploy Verification ==="

PROD_URL="https://api.yourapp.com"

# Health check
echo "[1/3] Health check..."
curl -sf "$PROD_URL/health" | jq .

# Webhook endpoint reachable
echo "[2/3] Webhook endpoint..."
STATUS=$(curl -s -o /dev/null -w "%{http_code}" \
  -X POST "$PROD_URL/lindy/callback" \
  -H "Authorization: Bearer $LINDY_WEBHOOK_SECRET" \
  -H "Content-Type: application/json" \
  -d '{"test": true}')
echo "Webhook endpoint: HTTP $STATUS (expect 200)"

# Trigger a test agent run
echo "[3/3] Agent trigger test..."
curl -s -X POST "https://public.lindy.ai/api/v1/webhooks/YOUR_ID" \
  -H "Authorization: Bearer $LINDY_WEBHOOK_SECRET" \
  -H "Content-Type: application/json" \
  -d '{"event": "deploy.verify", "env": "production"}'
echo "Agent triggered — check Tasks tab in Lindy dashboard"

Step 6: Rollback Plan

# If deployment fails, rollback:
# Vercel
vercel rollback

# Docker
docker stop lindy-app
docker run -d --name lindy-app-rollback \
  -e LINDY_API_KEY="$LINDY_API_KEY" \
  -e LINDY_WEBHOOK_SECRET="$LINDY_WEBHOOK_SECRET" \
  lindy-integration:previous-tag

# Update Lindy agents back to previous URLs if needed

Deployment Checklist

Step	Verification
Build passes	npm run build exits 0
Tests pass	npm test all green
Secrets configured	API key + webhook secret in platform
Health check responds	GET /health returns 200
Webhook auth works	POST with valid token returns 200
Webhook auth rejects	POST without token returns 401
Lindy agent URLs updated	HTTP Request actions point to prod
End-to-end test	Trigger agent, receive callback

Error Handling

Issue	Cause	Solution
Webhook 502	App crashed/not running	Check container logs, restart
Webhook timeout	Slow processing	Respond 200 immediately, process async
Wrong URL in Lindy	Not updated post-deploy	Update HTTP Request action URLs
SSL error	Certificate issue	Verify HTTPS cert is valid
Secret mismatch	Dev secret in prod	Verify production secrets match Lindy config

Resources

• Lindy Webhooks
• Lindy Documentation

Next Steps

See lindy-webhooks-events for advanced webhook patterns.