Leon Mika

Follow @lmika on Micro.blog.

DynamoDB JSON Attribute Types Quick Reference

Because apparently it’s too difficult for AWS to provide an easy way to find this information.

Atomic Types

Type JSON Value
Binary B String value containing the Base64-encoded binary data.
Boolean BOOL Either true or false
String S String value
Number N String with the numerical value
Null NULL Should always be true

Collection Types

Type JSON Value
List L A JSON array, with each element being an attribute with a type.
Map M A JSON object, with the keys being the map keys, and the values being an attribute with a type.

Set Types

Type JSON Value
Binary Set BS A JSON array of Base-64-encoded binary data.
Number Set NS A JSON array of string with the numerical values.
String Set SS A JSON array of strings.


✍️ Reply by email