in DynamoDB-SDK-Examples/dotnet/WorkingWithItems/BatchGetItem.cs [16:71]
public static async Task ServiceClientExampleAsync()
{
var client = new AmazonDynamoDBClient(RegionEndpoint.USWest2);
var request = new BatchGetItemRequest
{
RequestItems = new Dictionary<string, KeysAndAttributes> {
{
//Table to read
"RetailDatabase",
//Definition of the keys to retrieve
new KeysAndAttributes
{
Keys = new List<Dictionary<string, AttributeValue>>
{
//List of dictionaries that define the keys of the items to retrieve
new Dictionary<string, AttributeValue> {
{ "pk", new AttributeValue { S = "jim.bob@somewhere.com" }},
{ "sk", new AttributeValue { S = "metadata" }}
},
new Dictionary<string, AttributeValue> {
{ "pk", new AttributeValue { S = "vikram.johnson@somewhere.com" }},
{ "sk", new AttributeValue { S = "metadata" }}
},
new Dictionary<string, AttributeValue> {
{ "pk", new AttributeValue { S = "jose.schneller@somewhere.com" }},
{ "sk", new AttributeValue { S = "metadata" }}
}
},
ConsistentRead = true, //If you don't need consistent reads use false instead to have cheaper retrieve prices
}
} //You can add more tables to read here.
},
ReturnConsumedCapacity = "TOTAL"
};
try
{
//Execute the BatchGet task to obtain the data
var responseBatch =await client.BatchGetItemAsync(request);
//Read every table and show all the content retrieved from the table.
foreach(var table in responseBatch.Responses)
{
Console.WriteLine($"Results of table {table.Key}: number {table.Value.Count}");
Console.WriteLine(JsonConvert.SerializeObject(table.Value));
}
}
catch (Exception e)
{
Console.Error.WriteLine(e.Message);
}
}