client

func New ¶

func New(address string, tracer opentracing.Tracer, clientFactory func(cc grpc.ClientConnInterface) interface{}) (interface{}, func() error, error)

New creates a new gRPC connection and generic service client. Automatically injects contexts over gRPC and starts a new server-side tracing span.

To make this work as a generic client constructor, you must wrap the `pb.NewXXXCLient` function to return an empty interface{} Every service should create their own client implementation by calling this function. Example from the account service client. ```

func New(address string, tracer opentracing.Tracer) (pb.AccountClient, func() error, error) {
	c, close, err := client.New(address, tracer, createAccountClient)
	return c.(pb.AccountClient), close, err

} // Generic wrapper around the pb.NewXXXClient function

func createAccountClient(cc grpc.ClientConnInterface) interface{} {
	return pb.NewAccountClient(cc)
}

```