AWS
AWS Lambda Patterns: Building Scalable Serverless Applications
Learn essential patterns and best practices for building serverless applications using AWS Lambda, including event-driven architectures, integrations, and optimization strategies
February 24, 2024
DevHub Team
2 min read
Amazon Lambda enables you to run code without provisioning or managing servers. This guide explores common patterns and best practices for building serverless applications.
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graph TB
subgraph EventSources["Event Sources"]
direction TB
API["API Gateway"]
S3["S3"]
DDB["DynamoDB"]
EventB["EventBridge"]
SQS["SQS"]
end
subgraph Processing["Lambda Processing"]
direction TB
subgraph Patterns["Common Patterns"]
direction LR
Sync["Synchronous"]
Async["Asynchronous"]
Stream["Stream"]
end
subgraph Config["Configuration"]
direction LR
Memory["Memory"]
Timeout["Timeout"]
Concurrency["Concurrency"]
end
end
subgraph Integration["Service Integration"]
direction TB
subgraph Storage["Data Services"]
direction LR
S3Out["S3"]
DDBOut["DynamoDB"]
RDS["RDS"]
end
subgraph Messaging["Event Services"]
direction LR
SNS["SNS"]
SQSOut["SQS"]
KDS["Kinesis"]
end
end
subgraph Operations["Operational Excellence"]
direction TB
subgraph Monitor["Monitoring"]
direction LR
CW["CloudWatch"]
XRay["X-Ray"]
Logs["Logs"]
end
subgraph Security["Security"]
direction LR
IAM["IAM"]
KMS["KMS"]
SG["Security Groups"]
end
end
EventSources --> Processing
Processing --> Integration
Integration --> Operations
classDef sourceNode fill:#FF9900,stroke:#232F3E,color:#232F3E,stroke-width:2px,font-weight:bold
classDef processNode fill:#232F3E,stroke:#232F3E,color:#FFFFFF,stroke-width:2px,font-weight:bold
classDef integrationNode fill:#147EB4,stroke:#232F3E,color:#FFFFFF,stroke-width:2px,font-weight:bold
classDef operationsNode fill:#147EB4,stroke:#232F3E,color:#FFFFFF,stroke-width:2px,font-weight:bold
classDef groupStyle fill:transparent,stroke:#232F3E,stroke-width:2px,color:#232F3E,font-weight:bold
class API,S3,DDB,EventB,SQS sourceNode
class Sync,Async,Stream,Memory,Timeout,Concurrency processNode
class S3Out,DDBOut,RDS,SNS,SQSOut,KDS integrationNode
class CW,XRay,Logs,IAM,KMS,SG operationsNode
class EventSources,Processing,Integration,Operations,Patterns,Config,Storage,Messaging,Monitor,Security groupStyle
Event Processing Patterns
1. Synchronous Request-Response
exports.handler = async (event) => { try { // Parse API Gateway event const body = JSON.parse(event.body); // Process request const result = await processRequest(body); // Return formatted response return { statusCode: 200, headers: { 'Content-Type': 'application/json' }, body: JSON.stringify({ message: 'Success', data: result }) }; } catch (error) { return { statusCode: 500, body: JSON.stringify({ message: 'Error processing request', error: error.message }) }; } };
Lambda
Serverless
Architecture
Best Practices
