In this section, you will learn how you can configure your GraphQL server and we will look at some transport protocol-related details.
Endpoints
Hot Chocolate comes with ASP.NET Core endpoint middleware for accepting HTTP / WebSocket GraphQL requests, downloading the GraphQL schema, or serving the Banana Cake Pop GraphQL IDE.
HTTP transport
Hot Chocolate implements the GraphQL over HTTP specification.
Learn more about the HTTP transport
Interceptors
Interceptors allow you to intercept GraphQL requests before they are executed. There are interceptors for both GraphQL requests sent via HTTP as well as via WebSockets.
In the case of WebSockets, the interceptor also allows you to handle life cycle events, such as when a client first connects.
Dependency injection
Hot Chocolate allows you to access dependency injection services inside your resolvers. We will take a look at the different ways you can inject services and also how you can switch out the dependency injection provider.
Learn more about Dependency Injection
Global State
With Global State you can define properties on a per-request basis to be made available to all resolvers and middleware.
Introspection
Introspection allows you to query the type system of your GraphQL server using regular GraphQL queries. While this is a powerful feature, enabling all sorts of amazing developer tooling, it can also be used as an attack vector. We will take a look at how you can control who is allowed to issue introspection queries against your GraphQL server.
Learn more about introspection
Files
Though not considered one of the responsibilities of a GraphQL server, for convenience, Hot Chocolate provides file upload support. We will also take a look at what other options you have when it comes to uploading and serving files.
Learn more about handling files
Instrumentation
Hot Chocolate allows you to gather instrumentation data about your GraphQL server, by hooking into various events in the execution process of a GraphQL request. You will also learn how to setup our OpenTelemetry integration and how to utilize Apollo Tracing.
Learn more about instrumentation
Batching
Batching allows you to send and execute a sequence of GraphQL operations in a single request.