async Task ConfigureLambdaWithQueueAsync(string queueName)
{
string queueArn = null;
AmazonSQSClient sqsClient = AwsFactory.CreateClient <AmazonSQSClient>();
GetQueueUrlRequest queueUrlReq = new GetQueueUrlRequest();
queueUrlReq.QueueName = queueName;
GetQueueUrlResponse getQueueUrlResp = await sqsClient.GetQueueUrlAsync(queueUrlReq);
GetQueueAttributesRequest queueAttribReq = new GetQueueAttributesRequest();
queueAttribReq.AttributeNames.Add(QueueAttributeName.QueueArn);
queueAttribReq.QueueUrl = getQueueUrlResp.QueueUrl;
var queueAttribResp = await sqsClient.GetQueueAttributesAsync(queueAttribReq);
queueArn = queueAttribResp.QueueARN;
AmazonLambdaClient lambdaClient = AwsFactory.CreateClient <AmazonLambdaClient>();
CreateEventSourceMappingRequest eventMappingReq = new CreateEventSourceMappingRequest();
eventMappingReq.FunctionName = "WebhookDispatcher";
eventMappingReq.BatchSize = 10;
eventMappingReq.Enabled = true;
eventMappingReq.EventSourceArn = queueArn;
await lambdaClient.CreateEventSourceMappingAsync(eventMappingReq);
}
public static async Task AddEventSourceAsync()
{
#region add_dynamodb_event_source
using (var streamClient = new AmazonDynamoDBStreamsClient())
using (var lambdaClient = new AmazonLambdaClient())
{
// TODO: Enter Lambda function name, this is most likely: ServerlessTODOListStreamProcessor
var functionName = "";
if (string.IsNullOrEmpty(functionName))
{
Console.Error.WriteLine("You must set the name of the Lambda function you deployed to the \"functionName\" variable");
return;
}
var listRequest = new ListStreamsRequest
{
TableName = "TODOList"
};
var listResponse = await streamClient.ListStreamsAsync(listRequest);
if (listResponse.Streams.Count == 0)
{
Console.Error.WriteLine($"A stream is not enabled for the table {listRequest.TableName}");
return;
}
var streamArn = listResponse.Streams[0].StreamArn;
Console.WriteLine($"Stream ARN is {streamArn}");
var request = new CreateEventSourceMappingRequest
{
FunctionName = functionName,
EventSourceArn = streamArn,
StartingPosition = EventSourcePosition.LATEST,
BatchSize = 100
};
await lambdaClient.CreateEventSourceMappingAsync(request);
Console.WriteLine($"Event source mapping made between stream {streamArn} and function {functionName}");
}
#endregion
}
