This AWS Lambda training goes on to bring out the best ways in which you can build Serverless applications. It explores various Industry Best practices with the help of industrial case studies for Cloud and serverless based architecture. This AWS Lambda course is completely hands-on and includes a lot of demos, mini-projects, and use-cases. AWS Lambda is a fundamental compute service of the AWS cloud to help one create serverless applications. By going serverless with AWS Lambda, one can run code for virtually any type of application or backend service - all with zero administration. AWS Lambda can also be hooked with various other AWS services to provide event-driven functionalities, such as during changes to data in an Amazon S3 bucket or an Amazon DynamoDB table. Serverless is the next big movement in the cloud-native world.

Amazon EventBridge is a serverless event bus that makes it easier to build event-driven applications at scale using events generated from your applications, integrated Software as a Service (SaaS) applications, and other AWS services. EventBridge delivers a stream of real-time data from event sources such as Zendesk, Shopify, or other AWS services to configurable targets, like AWS Lambda and other SaaS applications. You can set up routing rules to determine where to send your data, which allow you to build application architectures that react in real time with event publishers and consumers, being completely decoupled.

Course Objectives:

In this course, you will learn how to:

• Serverless computing and AWS Lambda's role
• Create and configure Lambda functions
• Implement event-driven architecture
• Integrate Lambda with other AWS services
• Deploy Lambda functions
• Work with Lambda versions
• Configuring timeouts, and memory limits
• Monitoring and troubleshooting Lambda functions
• Set up a CloudWatch Events rule, and create an EventBridge bus
• Use the EventBridge bus with a partner SaaS application
• Learn about scenarios in which EventBridge can integrate with other AWS services

Course content

AWS Lambda

Getting Started with Lambda

• Introduction to Serverless
• Create a Function
• Code Editor
• AWS CLI
• Concepts
• Features
• Tools
• Limits

AWS Lambda Security

• Execution Role
• Resource-based Policies
• User Policies
• Resources and Conditions
• Permissions Boundaries

Managing Lambda Functions

• Function Configuration
• Environment Variables
• Concurrency
• Versions
• Aliases
• Layers
• Network
• Database
• Tags

Invoking Functions in Lambda

• Synchronous Invocation
• Asynchronous Invocation
• Event Source Mapping
• Function States
• Function Scaling
• Error Handling

Lambda Runtimes

• Environment Variables
• Execution Context
• Runtime Support Policy
• Custom Runtimes
• Runtime Interface

Lambda Applications

• Manage Applications
• Tutorial – Create an Application
• Rolling Deployments
• Use Cases
• Best Practices of AWS Lambda

Working with Other Services

• Application Load Balancer
• Amazon API Gateway
• AWS CloudTrail
• CloudWatch Events
• CloudFront
• Amazon DynamoDB
• Amazon EC2
• Amazon S3
• Amazon SES
• Amazon SNS
• Amazon SQS

AWS Lambda Miscellaneous

• Working with Python
• Working with Java
• Working with Node
• Working with Go
• Working with PowerShell
• Monitoring
• Security
• Troubleshooting
• API Reference

AWS EventBridge

Introduction

• Introduction to the application you will build
• Access to course resources (Student Guide, Lab Guide, and Online Course Supplement)

Thinking Serverless 

• Best practices for building modern serverless applications
• Event-driven design
• AWS services that support event-driven serverless applications

API-Driven Development and Synchronous Event Sources 

• Characteristics of standard request/response API-based web applications
• How Amazon API Gateway fits into serverless applications
• Lab: Set up an HTTP API endpoint integrated with a Lambda function
• High-level comparison of API types (REST/HTTP, WebSocket, GraphQL)

Introduction to Authentication, Authorization, and Access Control

• Authentication vs. Authorization
• Options for authenticating to APIs using API Gateway
• Amazon Cognito in serverless applications
• Amazon Cognito user pools vs. federated identities

Serverless Deployment Frameworks 

• Overview of imperative vs. declarative programming for infrastructure as code
• Comparison of CloudFormation, AWS CDK, Amplify, and AWS SAM frameworks
• Features of AWS SAM and the AWS SAM CLI for local emulation and testing

Using Amazon EventBridge and Amazon SNS to Decouple Components

• Development considerations when using asynchronous event sources
• Features and use cases of Amazon EventBridge
• Lab: Build a custom EventBridge bus and rule
• Comparison of use cases for Amazon Simple Notification Service (Amazon SNS) vs. EventBridge
• Lab: Configure an Amazon SNS topic with filtering

Event-Driven Development Using Queues and Streams

• Development considerations when using polling event sources to trigger Lambda functions
• Distinctions between queues and streams as event sources for Lambda
• Selecting appropriate configurations when using Amazon Simple Queue Service (Amazon SQS) or Amazon Kinesis Data Streams as an event source for Lambda
• Lab: Configure an Amazon SQS queue with a dead-letter queue as a Lambda event source

Writing Good Lambda Functions

• How the Lambda lifecycle influences your function code
• Best practices for your Lambda functions
• Configuring a function
• Function code, versions and aliases
• Lab: Configure and test a Lambda function
• Lambda error handling
• Handling partial failures with queues and streams

Step Functions for Orchestration 

• AWS Step Functions in serverless architectures
• Lab: Step Functions states
• The call back pattern
• Standard vs. Express Workflows
• Step Functions direct integrations
• Lab: Troubleshooting a Standard Step Functions workflow

Observability and Monitoring 

• The three pillars of observability
• Amazon CloudWatch Logs and Logs Insights
• Writing effective log files
• Lab: Interpreting logs
• Using AWS X-Ray for observability
• Lab: Enable X-Ray and interpret X-Ray traces
• CloudWatch metrics and embedded metrics format
• Lab: Metrics and alarms
• Lab: ServiceLens

Serverless Application Security

• Security best practices for serverless applications
• Applying security at all layers
• API Gateway and application security
• Lambda and application security
• Protecting data in your serverless data stores
• Auditing and traceability

Handling Scale in Serverless Applications 

• Scaling considerations for serverless applications
• Using API Gateway to manage scale
• Lambda concurrency scaling
• How different event sources scale with Lambda

Automating the Deployment Pipeline 

• The importance of CI/CD in serverless applications
• Tools in a serverless pipeline
• AWS SAM features for serverless deployments
• Best practices for automation
• Course wrap-up

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