func (l *GreetLogic) Greet(req types.Request) (*types.Response, error) {
    return &types.Response{
        Message: "Hello go-zero",
    }, nil
}

PS D:\repo\go-zero-demo\greet> go run greet.go -f etc/greet-api.yaml
# go-zero-demo/greet/internal/handler
internal\handler\greethandler.go:21:24: cannot use &req (type *types.Request) as type types.Request in argument to l.Greet

func (l *GreetLogic) Greet(req *types.Request) (resp *types.Response, err error) {
    return &types.Response{
        Message: "Hello go-zero",
    }, nil
}