Rocking AWS Serverless - A Real World Guide

Install Postman, create an account, and learn basic features to call our API gateway using get and post requests, verifying responses like hello world and hello from France.

Demonstrate cross account calls by routing an API gateway integration to a lambda function in another account, configure permissions, test invocation, and validate security policies.

Learn to create an API in API Gateway, view and change endpoint type after creation using the gear icon or AWS CLI, and note private to edge-optimized can't be changed.

Discover how Swagger describes api structure for machine reading and api as code. Export Swagger from api gateway, generate boilerplate docs, and enable multi-environment reuse via open api standards.

Master how lambda environment variables pass key-value pairs to your function without code changes. They enable dev, stage, and production configurations by reading from the environment, with encryption options.

Use Visual Studio Code with the AWS toolkit to connect to your account, download and test a lambda, install the requests module inside its folder, and upload the updated code.

demonstrates integrating an elastic file system with Lambda, exposing an HTTP API to add, get, and delete messages, while sharing the same FS with Cloud9 via a VPC mount.

Code a real-world boto3 workflow in aws lambda that triggers on ec2 state changes via cloudwatch, reads instance tags, stops the instance, and notifies the employee via ses.

Explore how AWS SNS and SQS enable scalable, secure messaging, covering standard and FIFO queues, message filtering, fan-out architectures, dead-letter queues, visibility timeout, and Lambda integration.

Discover how AWS Step Functions coordinate multiple lambdas via a visual state machine to control flow, looping, and error handling. Learn how tasks and transitions form a plug-and-play, visual workflow.

Explore the upgraded AWS Step Functions console with templates, sample projects, and one-click step machines, including sequential Lambda calls, parallel and nested workflows, and input-output behavior.

Explore nested step functions in AWS serverless by wiring a synchronized validate account lambda, handling 200 and 400 outputs, and securing access with IAM roles and CloudWatch events.

Learn to monitor your api using cloudwatch metrics by inspecting api calls latency, integration latency, and data access on the api gateway dashboard and in cloudwatch.

Learn how to enable x-ray tracing on api gateway, and read its detailed timing across stages, api calls, and lambda execution, using cloud watch logs and viewable traces for troubleshooting.

Set up the AWS CLI on an EC2 instance, install pip and the CLI on Red Hat Enterprise Linux, then verify Lambda access by listing and invoking functions.

Create a Python lambda from EC2 using the AWS CLI by packaging code and dependencies (like requests) into a zip, then deploy with a basic execution role.

Learn to invoke an AWS Lambda function from the AWS CLI by specifying the function name, output file, and optional payload, illustrated with a hello world example in Cloud9.

Learn to update a lambda function from the AWS CLI using Cloud9, by packaging code into a zip, specifying the function name, and applying update-function-code to reflect changes.

Create a Cloud9 environment in AWS, explore its three panes, and use the built-in AWS CLI and toolkit to download, view, and manage Lambda functions and other resources.

Watch a hands-on demonstration of AWS Secrets Manager, creating and rotating secrets including database credentials and generic key-value secrets, and see Python code to fetch secrets by name and region.

Configure api gateway with a lambda authorizer using Auth0 as the identity provider, validating the token and mirroring the Cognito flow with two lambdas.

Demonstrates an API gateway resource policy that restricts access by IP address ranges, deploys the policy, and verifies forbidden responses when requests do not match.

Amazon Inspector now supports lambda scanning, delivering automated vulnerability assessments for lambda functions and layers. Enable scanning in account management, review findings, and trigger remediations via event bridge or sns.

Explore global tables with two-way replication across regions for low-latency reads, automatic traffic shift if a region fails, and seamless global scaling at a modest extra cost.

Demonstrate enabling strongly consistent reads in DynamoDB by using a Lambda to fetch a person by id from a people table and return John's information.

Deploy and test a lambda-based news app by installing the requests dependency, creating test events to insert, fetch sentiment, and delete news, and scheduling via CloudWatch events.

Learn to create a CloudWatch scheduled rule that triggers a Lambda every three minutes, wiring it to insert or delete items in DynamoDB and monitor invocations.

Recap of part one shows how Cloud9 supports editing, testing, and deployment. It covers external dependencies like requests and how Dynamo, Lamda, CloudWatch, and Comprehend connect services.

Discover how lambda easily integrates with diverse services with minimal code, backed by documentation, while securing with api gateway and cognito user pools, and simplifying deployment, testing, and auto scaling.