MessageAttributeValue

Custom message attribute value. The same restrictions apply to string values as to the message body.

The message name, type, value, and body cannot be empty. The total size of all parts of a message put together cannot exceed 256 KB.

Parameter	Type	Required parameter	Description
BinaryListValue.N	array	No	Not implemented.
BinaryValue	base64	No	Any binary data.
DataType	string	Yes	Data type: String, Number, or Binary. For the Number type, use StringValue.
StringListValue.N	string	No	Not implemented.
StringValue	string	No	UTF-8 encoded string.