AWS Lambda Update 2015.04.22Amazon Data Service Japan,Solutions ArchitectKeisuke Nishitani(@Keisuke69)

@Keisuke69

WebEC

AWS Lambda

Compute

EC2OS

()

AWS Lambda

Lambda

Bring your own code

Node.js

/

/tmpread/write

100

GA AWS Mobile SDK Synchronous Invoke API

AWS Lambda now Generally Available

100* 11000* Invoke6MB

1:1n:n

AWS Lambda

AWS Mobile SDK AWS Mobile SDK for iOS AWS Mobile SDK for Android

Invoke RequestResponse

Lambda

Web AWS SDKAWS Mobile SDK

InvokeInvocation Type Event

RequestResponse Lambda

JavaScriptvar params = { IdentityPoolId: "Cognito Identity Pool ID, }; AWS.config.region = 'us-east-1; AWS.config.credentials = new AWS.CognitoIdentityCredentials(params); AWS.config.credentials.get(function(err) { if (!err) { var event = { 'key': 'value }; var params = { FunctionName: 'Sample, InvocationType: 'RequestResponse, LogType: 'Tail, Payload: JSON.stringify(event) }; var lambda = new AWS.Lambda(); lambda.invoke(params, function(err, data) { if (err){ console.log(err, err.stack); }else{ console.log(data.Payload); } }); } else { console.log("Error:" + err); } });

API

DynamoDB

S3

1. HTML/JS

4. URL

JavaScriptSDK

4. URL

Lambda

3.

API

DynamoDB

S3

3. URL

2. URL

Lambda

1.

App with AWS Mobile

SDK

Amazon SNS SNS SNSAWSCloudWatchalarm

Amazon SNS Lambda function

Amazon Cognito Cognito SyncLambda

Amazon Cognito Lambda function

context

context.succeed(Object result JSON.stringifyresult

InvocationEventCloudWatch LogsLogresult

InvocaktionRequestResponseresult

Log

context.fail (Object error) error ErrornullX-Amz-Function-Error-Message

errorMessageLog

context

context.done (String message, Object result) message resultJSON.stringify messageLambda InvocationEventmessageresultCloudWatch

LogsLog InvocaktionRequestResponse

Messagenullresult MessagenullresultX-Amz-Function-Error-Message

error

messageX-Amz-Function-Error-Message

context

awsRequestId LambdaID

logStreamName CloudWatch LogsLog

clientContext SDK Null

Identity MobileSDKAmazon CognitoIdentity providor Null

console.log('Loading function'); var aws = require('aws-sdk'); var s3 = new aws.S3({apiVersion: '2006-03-01'}); exports.handler = function(event, context) { console.log('Received event:', JSON.stringify(event, null, 2)); //ContentType var bucket = event.Records[0].s3.bucket.name; var key = event.Records[0].s3.object.key; s3.getObject({Bucket: bucket, Key: key}, function(err, data) { if (err) { console.log("Error getting object " + key + " from bucket " + bucket + ". Make sure they exist and your bucket is in the same region as this function."); context.fail('Error', "Error getting file: " + err); } else { console.log('CONTENT TYPE:', data.ContentType); context.succeed(); } }); };

Invocation Role

ExecutionInvocation2 Invocation

Lambda InvocationPull Execution Role()

Execution AWS IAMExecution Role

Execution RoleKinesis

KinesisPullLambdaKinesis

LambdaInvokeFunction

{ "Version": "2012-10-17", "Statement": [ { "Effect": "Allow", "Action": [ "lambda:InvokeFunction" ], "Resource": [ "*" ] }, { "Effect": "Allow", "Action": [ "kinesis:GetRecords", "kinesis:GetShardIterator", "kinesis:DescribeStream", "kinesis:ListStreams", "logs:CreateLogGroup", "logs:CreateLogStream", "logs:PutLogEvents" ], "Resource": "*" } ] }

AWS LambdaAccess Policy

PrincipalAWSid

S3 DynamoDB

LambdaAdd event source

CloudWatchMetrics Invocations

RequestCount

Failures ErrorCount

Duration Latency

Throttle

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