Menu
Amazon DynamoDB
API Reference (API Version 2012-08-10)

AttributeValue

Represents the data for an attribute.

Each attribute value is described as a name-value pair. The name is the data type, and the value is the data itself.

For more information, see Data Types in the Amazon DynamoDB Developer Guide.

Contents

Note

In the following list, the required parameters are described first.

B

An attribute of type Binary. For example:

"B": "dGhpcyB0ZXh0IGlzIGJhc2U2NC1lbmNvZGVk"

Type: Base64-encoded binary data

Required: No

BOOL

An attribute of type Boolean. For example:

"BOOL": true

Type: Boolean

Required: No

BS

An attribute of type Binary Set. For example:

"BS": ["U3Vubnk=", "UmFpbnk=", "U25vd3k="]

Type: array of Base64-encoded binary datas

Required: No

L

An attribute of type List. For example:

"L": ["Cookies", "Coffee", 3.14159]

Type: array of AttributeValue objects

Required: No

M

An attribute of type Map. For example:

"M": {"Name": {"S": "Joe"}, "Age": {"N": "35"}}

Type: String to AttributeValue object map

Required: No

N

An attribute of type Number. For example:

"N": "123.45"

Numbers are sent across the network to DynamoDB as strings, to maximize compatibility across languages and libraries. However, DynamoDB treats them as number type attributes for mathematical operations.

Type: String

Required: No

NS

An attribute of type Number Set. For example:

"NS": ["42.2", "-19", "7.5", "3.14"]

Numbers are sent across the network to DynamoDB as strings, to maximize compatibility across languages and libraries. However, DynamoDB treats them as number type attributes for mathematical operations.

Type: array of Strings

Required: No

NULL

An attribute of type Null. For example:

"NULL": true

Type: Boolean

Required: No

S

An attribute of type String. For example:

"S": "Hello"

Type: String

Required: No

SS

An attribute of type String Set. For example:

"SS": ["Giraffe", "Hippo" ,"Zebra"]

Type: array of Strings

Required: No