curl -X POST http://127.0.0.1:4000/api/push -H "Content-Type: application/json" -d '{"sender": "raphael", "data": "Hello"}'
# curl -X POST http://localhost:4000/api/peek -H "Content-Type: application/json" -d '{"sender": "raphael"}'
# curl -X POST http://localhost:4000/api/pop -H "Content-Type: application/json" -d '{"sender": "raphael"}'
# curl -X POST http://localhost:4000/api/list -H "Content-Type: application/json" -d '{"sender": "raphael", "minutes": "40"}'
# curl -X POST http://localhost:4000/api/clear -H "Content-Type: application/json" -d '{"sender": "raphael"}'