Configuration
1. Produce Message
POST /t/<tunnel-id>
Waiting for action...
2. Consume Message (Non-blocking)
GET /t/<tunnel-id>
Waiting for action...
3. Consume Message (Long Polling)
GET /t/<tunnel-id>/poll
Waiting for action...
4. Acknowledge Message
DELETE /t/<tunnel-id>/<message-id>
Waiting for action...
5. Get Queue Size
GET /t/<tunnel-id>/len
Waiting for action...
5. Clean Queue (Delete Tunnel)
DELETE /t/<tunnel-id>/all
Waiting for action...