Strawberry Shake supports multiple network protocols to communicate with your GraphQL server. Each transport integration is represented by a specific NuGet package to keep your client size as small as possible.

Protocols

Transport Profiles

In order to have a small client size and generate the optimized client for your use-case Strawberry Shake uses transport profiles. By default Strawberry Shake will generate a client that uses GraphQL over HTTP for queries and mutations and graphql-transport-ws for subscriptions. Meaning if you are only using queries and mutations you need to add the package StrawberryShake.Transport.Http.

There are cases in which we want to define specialized transport profiles where we define for each request type a specific transport. You can define those transport profiles in your .graphqlrc.json.

The following .graphqlrc.json can be copied into our getting started example and will create two transport profiles. The first is called Default and matches the internal default. It will use GraphQL over HTTP by default and use graphql-transport-ws for subscriptions. The second profile is called WebSocket and will also use GraphQL over HTTP by default but for mutations and subscriptions it will use graphql-transport-ws.

{
  "schema": "schema.graphql",
  "documents": "**/*.graphql",
  "extensions": {
    "strawberryShake": {
      "name": "ConferenceClient",
      "namespace": "Demo.GraphQL",
      "url": "http://localhost:5050/graphql",
      "dependencyInjection": true,
      "transportProfiles": [
        {
          "name": "Default",
          "default": "HTTP",
          "subscription": "WebSocket"
        },
        {
          "name": "WebSocket",
          "default": "HTTP",
          "mutation": "WebSocket",
          "subscription": "WebSocket"
        }
      ]
    }
  }
}

The generator will generate the dependency injection code with a new enum called ConferenceClientProfileKind. The name of the enum is inferred from your GraphQL client name. The enum can be passed into the dependency injection setup method and allows you to switch between the two transport profiles through configuration.

builder.Services
    .AddConferenceClient(profile: ConferenceClientProfileKind.WebSocket)
    .ConfigureHttpClient(client => client.BaseAddress = new Uri("http://localhost:5050/graphql"))
    .ConfigureWebSocketClient(client => client.Uri = new Uri("ws://localhost:5050/graphql"));