./ API url definition
./views API related views, each operation is a view
./serializers API related request and response parameters.
Suggest related to sol003/sol005, each datatype is a file.
Common datatypes are put into the common file
./ API url definition
./views API related views, each operation is a view
./serializers API related request and response parameters.
Suggest related to sol003/sol005, each datatype is a file.
Common datatypes are put into the common file