Summary

This PR adds three new configurable properties to the Lambda construct to provide more flexibility and enable direct HTTP access:

• MemorySize (default: 1024 MB) - Configurable memory allocation instead of hardcoded 1024 MB
• TimeoutInSeconds (default: 6 seconds) - Configurable timeout instead of hardcoded 6 seconds
• GenerateUrl (default: false) - Optional Function URL generation for direct HTTP access without API Gateway

Key Features

🔧 Enhanced Lambda Configuration

• Memory and timeout are now customizable while maintaining backward compatibility
• Public readonly properties expose LambdaFunction and LiveAliasFunctionUrlDomain for advanced scenarios
• Function URLs provide direct HTTP access with automatic CloudFormation outputs

🧪 Comprehensive Testing Support

• Added 6 new assertion methods to LambdaFunctionConstructAssertions
• Enhanced test customization system with generateUrl parameter
• Updated fluent props builder with 4 new methods
• Added 9 comprehensive unit tests covering all new functionality

📖 Developer Experience

• Updated README with 3 new example sections showcasing the features
• Enhanced documentation with new configuration options and testing methods
• Backward compatibility maintained - all existing code continues to work

Examples

Custom Memory and Timeout

var lambda = new LambdaFunctionConstruct(this, "MyLambda", new LambdaFunctionConstructProps
{
    // ... existing props
    MemorySize = 2048,       // Custom memory (default: 1024 MB)
    TimeoutInSeconds = 30,   // Custom timeout (default: 6 seconds)
});

Function URL for Direct HTTP Access

var lambda = new LambdaFunctionConstruct(this, "MyApi", new LambdaFunctionConstructProps
{
    // ... existing props
    GenerateUrl = true,      // Enable Function URL
    MemorySize = 512,        // Optimized for lightweight API
    TimeoutInSeconds = 15,   // API timeout
});

// Access the function URL domain
string url = lambda.LiveAliasFunctionUrlDomain;

Enhanced Testing

// Fluent builder with new methods
var props = CdkTestHelper.CreatePropsBuilder("./lambda.zip")
    .WithMemorySize(2048)
    .WithTimeoutInSeconds(30)
    .WithGenerateUrl()
    .Build();

// New assertion helpers
template.ShouldHaveMemorySize(2048);
template.ShouldHaveTimeout(30);
template.ShouldHaveFunctionUrl();
template.ShouldHaveFunctionUrlOutput("stack", "construct");

Test Plan

• All 151 existing tests pass - backward compatibility verified
• 9 new comprehensive unit tests added covering:
  • Configurable memory size and timeout
  • Function URL generation (enabled/disabled scenarios)
  • Public properties exposure
  • Backward compatibility verification
  • Props builder functionality
  • Default value verification
• Test customization system enhanced with generateUrl parameter
• New assertion methods working correctly
• Build succeeds with no warnings or errors
• README examples verified and tested

Breaking Changes

None - this is a fully backward compatible enhancement. All existing functionality is preserved with sensible defaults.

🤖 Generated with Claude Code