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README.md | ||
scanItems.go |
README.md
Example
scanItems
is an example how to use Amazon DynamoDB's Scan API operation with the SDK's dynamodbattributes.UnmarshalListOfMaps
to unmarshal the Scan response's Items
[]map[string]*dynamodb.AttributeValue
field. This unmarshaler can be used with all []map[string]*dynamodb.AttributeValue
type fields.
Go Type
The Item
time will be used by the example to unmarshal the DynamoDB table's items to.
type Item struct {
Key int
Desc string
Data map[string]interface{}
}
Use Go tags to define what the name is of the attribute in your DynamoDB table. See AWS SDK for Go API Reference: Marshal for more information.
In DynamoDB the structure of the item to be returned will be:
{
"Data": {
"Value 1": "abc",
"Value 2": 1234567890
},
"Desc": "First ddb item",
"Key": 1
}
Usage
go run -tags example scanItems.go -table "<table_name>" -region "<optional_region>"
Output
0: Key: 123, Desc: An item in the DynamoDB table
Num Data Values: 0
1: Key: 2, Desc: Second ddb item
Num Data Values: 2
- "A Field": 123
- "Another Field": abc
2: Key: 1, Desc: First ddb item
Num Data Values: 2
- "Value 1": abc
- "Value 2": 1234567890