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**To retrieve multiple items from a table**
The following ``batch-get-items`` example reads multiple items from the ``MusicCollection`` table using a batch of three ``GetItem`` requests. The command returns only the ``AlbumTitle`` attribute. ::
aws dynamodb batch-get-item \
--request-items file://request-items.json
Contents of ``request-items.json``::
{
"MusicCollection": {
"Keys": [
{
"Artist": {"S": "No One You Know"},
"SongTitle": {"S": "Call Me Today"}
},
{
"Artist": {"S": "Acme Band"},
"SongTitle": {"S": "Happy Day"}
},
{
"Artist": {"S": "No One You Know"},
"SongTitle": {"S": "Scared of My Shadow"}
}
],
"ProjectionExpression":"AlbumTitle"
}
}
Output::
{
"UnprocessedKeys": {},
"Responses": {
"MusicCollection": [
{
"AlbumTitle": {
"S": "Somewhat Famous"
}
},
{
"AlbumTitle": {
"S": "Blue Sky Blues"
}
},
{
"AlbumTitle": {
"S": "Louder Than Ever"
}
}
]
}
}
For more information, see `Batch Operations <https://docs.aws.amazon.com/amazondynamodb/latest/developerguide/WorkingWithItems.html#WorkingWithItems.BatchOperations>`__ in the *Amazon DynamoDB Developer Guide*.
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