Data Type Descriptor
Control plane and data plane operation in DynamoDB requires the data type to be specified. The data types are specified by JSON structure referred to as Data type descriptor. As an example consider the put ietm call below for writing an item to the table.
The values for the attributes, require a data type descriptor along with the actual value of the attribute. The data types are specified by a letter menmonic such as ‘S’ for string type, ‘N’ for number etc.
Here is a complete list of types and desciptors.
