private static IAmazonDynamoDB GetDynamoDbClient(string choice)
{
if (string.IsNullOrWhiteSpace(choice) == false && choice.Trim().ToLower() == "y")
{
try
{
// here we use the IAM Role attached to the EC2 instance to get the credentials
return(new AmazonDynamoDBClient(RegionEndpoint.USWest2));
}
catch (Exception ex)
{
WriteLine(ConsoleColor.Red, ex.Message);
return(null);
}
}
var config = new AmazonDynamoDBConfig()
{
RegionEndpoint = RegionEndpoint.USWest2
};
var client = AWSClientFactory.CreateAmazonDynamoDBClient(
AccessKey,
SecretKey,
config
);
return(client);
}
/// <summary>
/// This method will show where the session state data is stored in Amazon DynamoDB.
/// This is just for demonstration purposes and normal use of the session is done
/// through the Context.Session property.
/// </summary>
private void InspectSessionTable()
{
using (StringWriter sr = new StringWriter())
{
try
{
var dynamoDb = AWSClientFactory.CreateAmazonDynamoDBClient(RegionEndpoint.USWest2);
var table = Table.LoadTable(dynamoDb, "ASP.NET_SessionState");
sr.WriteLine("<li>Table: {0}</li>", table.TableName);
sr.WriteLine("<li>Hash Key: {0}</li>", table.HashKeys[0]);
var item = table.GetItem(this.Context.Session.SessionID);
if (item == null || !item.Contains(DynamoDBSessionStateStore.ATTRIBUTE_CREATE_DATE))
{
sr.WriteLine("<li>Session Not Persisted Yet</li>");
}
else
{
sr.WriteLine("<li>Session Created: {0}</li>", (DateTime)item[DynamoDBSessionStateStore.ATTRIBUTE_CREATE_DATE]);
sr.WriteLine("<li>Session Expires: {0}</li>", (DateTime)item[DynamoDBSessionStateStore.ATTRIBUTE_EXPIRES]);
}
}
catch (AmazonDynamoDBException ex)
{
if (ex.ErrorCode != null && ex.ErrorCode.Equals("AuthFailure"))
{
sr.WriteLine("The account you are using is not signed up for Amazon DynamoDB.");
sr.WriteLine("<br />");
sr.WriteLine("You can sign up for Amazon DynamoDB at http://aws.amazon.com/dynamodb/");
sr.WriteLine("<br />");
sr.WriteLine("<br />");
}
else
{
sr.WriteLine("Caught Exception: " + ex.Message);
sr.WriteLine("<br />");
sr.WriteLine("Response Status Code: " + ex.StatusCode);
sr.WriteLine("<br />");
sr.WriteLine("Error Code: " + ex.ErrorCode);
sr.WriteLine("<br />");
sr.WriteLine("Error Type: " + ex.ErrorType);
sr.WriteLine("<br />");
sr.WriteLine("<br />");
}
}
this.dynamoDBPlaceholder.Text = sr.ToString();
}
}
protected void Page_Load(object sender, EventArgs e)
{
// Get the SMS details from the Request and pit them into a dictionary
// ready to insert into Dynamo DB.
Dictionary <string, AttributeValue> messageDetails = new Dictionary <string, AttributeValue>();
messageDetails.Add("ID", new AttributeValue(Request["MessageSid"]));
messageDetails.Add("From", new AttributeValue(Request["From"]));
messageDetails.Add("Body", new AttributeValue(Request["Body"]));
// Create the client to be used to write to Dynamo DB.
// Use the preview endpoint so that we can make use of DynamoDb Streams to trigger
// lambda functions.
var config = new AmazonDynamoDBConfig();
config.ServiceURL = "https://preview-dynamodb.us-east-1.amazonaws.com";
IAmazonDynamoDB client = AWSClientFactory.CreateAmazonDynamoDBClient(config);
// Add the SMS received to the Dynamo Db table,
client.PutItem("SmsMessages", messageDetails);
}
public DynamoDBClient()
{
var aws = CManager.Settings.AWS;
_service = AWSClientFactory.CreateAmazonDynamoDBClient(aws.AccessKey, aws.SecretAccessKey, RegionEndpoint.GetBySystemName(aws.RegionEndpoint));
}
public static IAmazonDynamoDB GetDynamoDbClient()
{
return(AWSClientFactory.CreateAmazonDynamoDBClient(GetAwsCredentials(), DynamoDbRegion));
}
