This example shows how to use resumable streams with VoltAgent and the Hono server, backed by the managed VoltOps store (no Redis setup).

• VoltAgent Hono server with resumable stream adapter
• Opt-in resumable streaming via options.resumableStream: true
• Resume endpoint using userId + conversationId
• VoltOps-managed stream storage (no Redis required)

1. Install dependencies:

pnpm install

2. Set your environment variables:

cp .env.example .env

Update OPENAI_API_KEY, VOLTAGENT_PUBLIC_KEY, and VOLTAGENT_SECRET_KEY in .env.

Optional: set VOLTAGENT_API_BASE_URL if you are using a non-default VoltOps API URL.

3. Start the server:

pnpm dev

The server runs on http://localhost:3141 by default.

Start a resumable stream:

curl -N -X POST http://localhost:3141/agents/assistant/chat \
  -H "Content-Type: application/json" \
  -d '{
    "input": "Say hello in Turkish and English.",
    "options": {
      "conversationId": "conv-1",
      "userId": "user-1",
      "resumableStream": true
    }
  }'

Resume the stream (after closing the first request):

curl -N "http://localhost:3141/agents/assistant/chat/conv-1/stream?userId=user-1"

• options.conversationId and options.userId are required for resumable streams.
• If you do not have a userId, generate a stable one (e.g. crypto.randomUUID()) and reuse it for the conversation.
• To enable resumable streaming by default, set resumableStream.defaultEnabled: true in honoServer and omit options.resumableStream.
• VoltOps-managed resumable streams are limited per project: Free 1, Core 100, Pro 1000 concurrent streams.