tmp

curl -X POST http://localhost:3978/api/messages \
  -H "Content-Type: application/json" \
  -d '{
    "type": "message",
    "text": "hello",
    "from": { "id": "user1" },
    "recipient": { "id": "bot" },
    "conversation": { "id": "conv1" }
  }'

curl -Method POST http://localhost:3978/api/messages `
  -Headers @{ "Content-Type" = "application/json" } `
  -Body '{
    "type": "message",
    "text": "hello",
    "from": { "id": "user1" },
    "recipient": { "id": "bot" },
    "conversation": { "id": "conv1" }
  }'