SupportFlow

SupportFlow is a conversational AI customer support system integrated with Twilio and Eleven Labs APIs, using Kafka and MongoDB for event streaming and backend storage. This repo contains the frontend of the project.(demo: (+1 272-379-9799 demo).

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🔗 Project Structure

Our project is split across three repositories:

1. Frontend (this repo) – SupportFlow
2. Backend (Call History Service) – Supportflow-backend
3. Kafka Module – Supportflow-kafkamodule

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🚀 Setup Instructions

Follow these steps in this exact order to get the project up and running locally:

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🧠 Step 1: Start Kafka and Zookeeper

cd C:\kafka\bin\windows
java -cp "C:\kafka\libs\*" org.apache.zookeeper.server.quorum.QuorumPeerMain C:\kafka\config\zookeeper.properties

cd C:\kafka\bin\windows
kafka-server-start.bat ..\..\config\server.properties

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🌐 Step 2: Start Ngrok

cd C:\Users\91727\Downloads\ngrok-v3-stable-windows-amd64
ngrok.exe http 8080

Keep the terminal open and copy the forwarded https URL.

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📡 Step 3: Run Kafka Consumer Module

Clone and open the Supportflow-kafkamodule repo in Eclipse IDE.

Run the KafkaConsumer.java file as a Java application.

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📞 Step 4: Run Twilio Call Handler (Spring Boot)

Open the Supportflow-kafkamodule repo in Eclipse.

Run the TwilioCallHandler.java Spring Boot application.

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🔗 Step 5: Configure Webhook in Eleven Labs

1. Go to the Eleven Labs Conversational AI dashboard

2. Navigate to Post-call Webhook Settings

3. Paste the ngrok URL copied earlier and add /webhook at the end

   Example:

   https://<your-ngrok-subdomain>.ngrok.io/webhook
   

4. After saving, copy the Webhook Secret generated.

5. Open the application.properties file in the Kafka module and update the following keys:

   server.port=8080
   elevenlabs.webhook.secret=your_generated_webhook_secret
   elevenlabs.api.key=your_elevenlabs_api_key
   elevenlabs.agent.id=your_elevenlabs_agent_id

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🧾 Step 6: Start Call History Backend

Clone the Supportflow-backend repo.

Run the following command to start the Spring Boot application:

./mvnw spring-boot:run

This will start the backend service connected to MongoDB for storing and retrieving call history.

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💻 Step 7: Start Frontend (This Repo)

Clone this repo SupportFlow.

Install dependencies and run the dev server:

npm install
npm run dev

Your frontend is now live at http://localhost:3000

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🧪 Testing the Live Project

1. Buy a Twilio Testing Number
2. Link it with Eleven Labs
3. Add sample knowledgebase & agent setup
4. Make a test call to interact with the AI agent

The full pipeline from call → AI agent → webhook → Kafka → MongoDB → frontend is now active.

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🛠 Tech Stack

• Frontend: Typescript
• Backend: Spring Boot + MongoDB
• Streaming: Apache Kafka
• Dev Tools: Eclipse, VS Code, Ngrok
• Voice API: Twilio
• AI Voice: Eleven Labs

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📂 Repository Links

• SupportFlow (Frontend)
• Supportflow-backend (Call History Service)
• Supportflow-kafkamodule (Kafka Streaming)

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📞 Contact

For any questions or setup issues, reach out to [[email protected]] or [[email protected]]