tdc

/**
 * Sample business network definition.
 */
namespace br.tdc.hackaton.chat

asset Message identified by assetId {
  o String assetId
  -->  User sender
  -->  User receiver
  o String content
}

participant User identified by participantId {
  o String participantId
  o String firstName
  o String lastName
}

transaction RegisterMessage {
  -->  SampleAsset asset
  o String newValue
}

event SampleEvent {
  --> SampleAsset asset
  o String oldValue
  o String newValue
}