ApiPattern GetShelves_ShelfBooks_Book shelves/:shelf/books/:book.

ExprStringP Support all built-in type referenced from https://golang.org/pkg/builtin/ Support map with string key Support structs of vo and dto package Support slice of types mentioned above Not support alias type (all alias type fields of a struct will be outputted as v3.Any in openapi 3.0 json document) Support anonymous struct type as struct field type in vo and dto package or as parameter type in method signature in svc.go file besides context.Context, multipart.FileHeader, v3.FileModel, os.File when go-doudou command line flag doc is true.

GenDoc generates OpenAPI 3.0 description json file.