Message Template

Add Message Template Properties

Name	Required	Description	Default
Name	Yes	The name of the message. Note that it is highly recommended that messages in MassTransit are interfaces, so they should start with an uppercase `I`.	None
Properties	No	The properties of your message.	None

Message Properties

Name	Required	Description	Default
Name	Yes	The name of the property	None
Type	Yes	The data type for the property. These are not case sensitive and they can be set to nullable with a trailing `?`. All standard C# data types can be used here.	string

When adding messages to an existing project, be sure to run the add:bus command if you don't already have a message bus in your project. This bus command should be completed before running an add:message command.

Add Message Template Examples

Adding a Message with Your Domain or Bounded Context

In this example, we're adding a message bus, message, consumer, and producer to our project. Notice how the exchange and message names match between the producer and the consumer.

DomainName: WeSendReportsCompany
BoundedContexts:
  - ProjectName: Reporting
    Producers:
      - EndpointRegistrationMethodName: SubmitReportRequest
        ExchangeName: report-requests
        MessageName: ISendReportRequest
        ExchangeType: fanout
        ProducerName: ReportWasRequested
        UsesDb: true
    Consumers:
      - EndpointRegistrationMethodName: AllReportsGetSentFromHereEndpoint
        ConsumerName: SenderOfAllReports
        ExchangeName: report-requests
        MessageName: ISendReportRequest
        QueueName: all-reports
        ExchangeType: fanout
    Messages:
      - Name: ISendReportRequest
        Properties:
          - Name: ReportId
            Type: guid
          - Name: Provider
            Type: string
          - Name: Target
            Type: string
    Bus:
      AddBus: true
    # additional new:domain properties here

Adding a Message to an Existing Project

If you've already created your Wrapt project and want to add one or more messages after the fact, you can use the add:message command to pass through one or more messages to your project. Make sure you have a message bus already in your project. If you don't have a bus, you add one with the add:bus command.