NewHelloWorldJSONClient creates a JSON client that implements the HelloWorld interface.

NewHelloWorldProtobufClient creates a Protobuf client that implements the HelloWorld interface.

WriteError writes an HTTP response with a valid Twirp error format.

HelloWorldPathPrefix is used for all URL paths on a twirp HelloWorld server.

HelloWorldAnalytics is a middleware for HelloWorld that collects timing and error rate data for servers.

HelloWorldLogging is a middleware for HelloWorld that logs all usage of the methods.

HelloWorldMetrics is a middleware for HelloWorld that collects timing and error rate data for servers.

HTTPClient is the interface used by generated clients to send HTTP requests.

TwirpServer is the interface generated server structs will support: they're HTTP handlers with additional methods for accessing metadata about the service.