index.md

AWS Lambda Developer Guide

---

Copyright © 2018 Amazon Web Services, Inc. and/or its affiliates. All rights reserved.

---

Amazon's trademarks and trade dress may not be used in connection with any product or service that is not Amazon's, in any manner that is likely to cause confusion among customers, or in any manner that disparages or discredits Amazon. All other trademarks not owned by Amazon are the property of their respective owners, who may or may not be affiliated with, connected to, or sponsored by Amazon.

---

Contents

• What Is AWS Lambda?
• Getting Started
  • Set Up an AWS Account
  • Create a Lambda Function with the Console
  • Set Up the AWS CLI
  • Install SAM CLI
• Working with Lambda Functions
  • Building Lambda Functions
  • Creating Functions Using the AWS Lambda Console Editor
  • Programming Model
  • Creating a Deployment Package
  • Accessing AWS Resources from a Lambda Function
• Configuring AWS Lambda Functions
  • Basic AWS Lambda Function Configuration
  • AWS Lambda Environment Variables
    • Create a Lambda Function Using Environment Variables
    • Create a Lambda Function Using Environment Variables To Store Sensitive Information
  • AWS Lambda Function Versioning and Aliases
    • Introduction to AWS Lambda Versioning
    • Introduction to AWS Lambda Aliases
      • Tutorial: Using AWS Lambda Aliases
    • Versioning, Aliases, and Resource Policies
    • Managing Versioning Using the AWS Management Console, the AWS CLI, or Lambda API Operations
    • Traffic Shifting Using Aliases
  • AWS Lambda Layers
  • Configuring a Lambda Function to Access Resources in an Amazon VPC
    • Tutorial: Configuring a Lambda Function to Access Amazon ElastiCache in an Amazon VPC
    • Tutorial: Configuring a Lambda Function to Access Amazon RDS in an Amazon VPC
• Invoking AWS Lambda Functions
  • Invocation Types
  • AWS Lambda Event Source Mapping
  • AWS Lambda Retry Behavior
  • Understanding Scaling Behavior
  • Dead Letter Queues
  • Supported Event Sources
  • Sample Events Published by Event Sources
• AWS Lambda Runtimes
  • Lambda Execution Environment and Available Libraries
  • AWS Lambda Execution Context
  • Runtime Support Policy
  • Custom AWS Lambda Runtimes
  • AWS Lambda Runtime Interface
  • Tutorial – Publishing a Custom Runtime
• AWS Lambda Applications
  • Managing Applications in the AWS Lambda Console
  • Using the AWS Serverless Application Model (AWS SAM)
  • Building a Pipeline for Your Serverless Application
• Examples of How to Use AWS Lambda
  • Using AWS Lambda with Amazon S3
    • Tutorial: Using AWS Lambda with Amazon S3
    • Sample Amazon Simple Storage Service Function Code
    • AWS SAM Template for an Amazon S3 Application
  • Using AWS Lambda with Amazon Kinesis
    • Tutorial: Using AWS Lambda with Amazon Kinesis
    • Sample Function Code
    • AWS SAM Template for a Kinesis Application
  • Using AWS Lambda with Amazon SQS
    • Tutorial: Using AWS Lambda with Amazon Simple Queue Service
    • Sample Amazon SQS Function Code
    • AWS SAM Template for an Amazon SQS Application
  • Using AWS Lambda with Amazon DynamoDB
    • Tutorial: Using AWS Lambda with Amazon DynamoDB Streams
    • Sample Function Code
    • AWS SAM Template for a DynamoDB Application
  • Using AWS Lambda with AWS CloudTrail
    • Tutorial: Using AWS Lambda with AWS CloudTrail
    • Sample Function Code
  • Using AWS Lambda with Amazon SNS from Different Accounts
    • Tutorial: Using AWS Lambda with Amazon Simple Notification Service
    • Sample Function Code
  • Using AWS Lambda with Amazon API Gateway
    • Tutorial: Using AWS Lambda with Amazon API Gateway
    • Sample Function Code
    • Create a Simple Microservice using Lambda and API Gateway
    • AWS SAM Template for an API Gateway Application
  • Using AWS Lambda as an Android Mobile Application Backend
    • Tutorial: Using AWS Lambda as Mobile Application Backend
    • Sample Function Code
  • Using AWS Lambda with Amazon CloudWatch Events
    • Tutorial: Using AWS Lambda with Scheduled Events
    • AWS SAM Template for a CloudWatch Events Application
    • Schedule Expressions Using Rate or Cron
  • Using AWS Lambda with an Application Load Balancer
  • Using AWS Lambda with the AWS Command Line Interface
  • Lambda@Edge
• Monitoring and Troubleshooting Lambda Applications
  • Using Amazon CloudWatch
    • Accessing Amazon CloudWatch Metrics for AWS Lambda
    • Accessing Amazon CloudWatch Logs for AWS Lambda
    • AWS Lambda Metrics
  • Using AWS X-Ray
    • Tracing Lambda-Based Applications with AWS X-Ray
    • Setting Up AWS X-Ray with Lambda
    • Emitting Trace Segments from a Lambda Function
    • The AWS X-Ray Daemon in the Lambda Environment
• Administering Lambda-based Applications
  • Authentication and Access Control for AWS Lambda
    • Overview of Managing Access Permissions to Your AWS Lambda Resources
    • Using Identity-Based Policies (IAM Policies) for AWS Lambda
      • Permissions Required to Use the AWS Lambda Console
    • Using Resource-Based Policies for AWS Lambda (Lambda Function Policies)
    • AWS Lambda Permissions Model
    • Lambda API Permissions: Actions, Resources, and Conditions Reference
    • Policy Templates
  • Logging AWS Lambda API Calls with AWS CloudTrail
  • Tagging Lambda Functions
  • Managing Concurrency
  • Best Practices for Working with AWS Lambda Functions
  • AWS Lambda Limits
• Building Lambda Functions with Node.js
  • AWS Lambda Deployment Package in Node.js
  • AWS Lambda Function Handler in Node.js
  • AWS Lambda Context Object in Node.js
  • AWS Lambda Function Logging in Node.js
  • AWS Lambda Function Errors in Node.js
  • Instrumenting Node.js Code in AWS Lambda
• Building Lambda Functions with Python
  • AWS Lambda Deployment Package in Python
  • AWS Lambda Function Handler in Python
  • AWS Lambda Context Object in Python
  • AWS Lambda Function Logging in Python
  • AWS Lambda Function Errors in Python
  • Instrumenting Python Code in AWS Lambda
• Building Lambda Functions with Java
  • AWS Lambda Deployment Package in Java
    • Creating a .jar Deployment Package Using Maven without any IDE (Java)
    • Creating a .jar Deployment Package Using Maven and Eclipse IDE (Java)
    • Creating a .zip Deployment Package (Java)
    • Authoring Lambda Functions Using Eclipse IDE and AWS SDK Plugin (Java)
  • AWS Lambda Function Handler in Java
    • Handler Input/Output Types (Java)
      • Example: Using POJOs for Handler Input/Output (Java)
      • Example: Using Stream for Handler Input/Output (Java)
    • Leveraging Predefined Interfaces for Creating Handler (Java)
  • AWS Lambda Context Object in Java
  • AWS Lambda Function Logging in Java
  • AWS Lambda Function Errors in Java
  • Instrumenting Java Code in AWS Lambda
  • Create a Lambda Function Authored in Java
• Building Lambda Functions with Go
  • AWS Lambda Deployment Package in Go
  • AWS Lambda Function Handler in Go
  • AWS Lambda Context Object in Go
  • AWS Lambda Function Logging in Go
  • AWS Lambda Function Errors in Go
  • Instrumenting Go Code in AWS Lambda
  • Using Environment Variables
• Building Lambda Functions with C#
  • AWS Lambda Deployment Package in C#
    • .NET Core CLI
    • AWS Toolkit for Visual Studio
  • AWS Lambda Function Handler in C#
  • AWS Lambda Context Object in C#
  • AWS Lambda Function Logging in C#
  • AWS Lambda Function Errors in C#
• Building Lambda Functions with PowerShell
  • AWS Lambda Deployment Package in PowerShell
    • Setting Up a PowerShell Development Environment
  • AWS Lambda Function Handler in PowerShell
  • AWS Lambda Context Object in PowerShell
  • AWS Lambda Function Logging in PowerShell
  • AWS Lambda Function Errors in PowerShell
• Building Lambda Functions with Ruby
  • AWS Lambda Function Handler in Ruby
  • AWS Lambda Deployment Package in Ruby
  • AWS Lambda Context Object in Ruby
  • AWS Lambda Function Logging in Ruby
  • AWS Lambda Function Errors in Ruby
• API Reference
  • Actions
    • AddLayerVersionPermission
    • AddPermission
    • CreateAlias
    • CreateEventSourceMapping
    • CreateFunction
    • DeleteAlias
    • DeleteEventSourceMapping
    • DeleteFunction
    • DeleteFunctionConcurrency
    • DeleteLayerVersion
    • GetAccountSettings
    • GetAlias
    • GetEventSourceMapping
    • GetFunction
    • GetFunctionConfiguration
    • GetLayerVersion
    • GetLayerVersionPolicy
    • GetPolicy
    • Invoke
    • InvokeAsync
    • ListAliases
    • ListEventSourceMappings
    • ListFunctions
    • ListLayers
    • ListLayerVersions
    • ListTags
    • ListVersionsByFunction
    • PublishLayerVersion
    • PublishVersion
    • PutFunctionConcurrency
    • RemoveLayerVersionPermission
    • RemovePermission
    • TagResource
    • UntagResource
    • UpdateAlias
    • UpdateEventSourceMapping
    • UpdateFunctionCode
    • UpdateFunctionConfiguration
  • Data Types
    • AccountLimit
    • AccountUsage
    • AliasConfiguration
    • AliasRoutingConfiguration
    • Concurrency
    • DeadLetterConfig
    • Environment
    • EnvironmentError
    • EnvironmentResponse
    • EventSourceMappingConfiguration
    • FunctionCode
    • FunctionCodeLocation
    • FunctionConfiguration
    • Layer
    • LayersListItem
    • LayerVersionContentInput
    • LayerVersionContentOutput
    • LayerVersionsListItem
    • TracingConfig
    • TracingConfigResponse
    • VpcConfig
    • VpcConfigResponse
• AWS Lambda Releases
• AWS Glossary