GraphQL.Server.Transports.ServerSentEvents

Introduction

Experimental transport implmentation for GraphQL dotnet server 5.0.2+, with graphql-sse as client.

How to run example

1. Make sure dotnet 6 and nodejs are installed
2. Inside GraphQL.Server.Transports.ServerSentEvents.Samples/ClientApp, run npm install, npm run build
3. Inside GraphQL.Server.Transports.ServerSentEvents.Samples, run dotnet run
4. Visit http://loccalhost:5000/index.html, click subscribe button
5. With some http client like postman, send a GraphQL mutation like

// Query
mutation AddMessage($message: MessageInputType!) {
  addMessage(message: $message) {
    from {
      id
      displayName
    }
    content
  }
}

// Variables
{
  "message": {
    "content": "Message",
    "fromId": "1"
  }
}

Note: The subscription query is

subscription MessageAdded {
  messageAdded {
    from { id displayName }
    content
  }
}

TODOs

• Fix single connection
• Unit tests
• Github actions
• Test with more cases
• Beautify example
• Publish to Nuget

License

MIT