create-function.ts

// ~~ Generated by projen. To modify, edit .projenrc.ts and run "npx projen".
import * as path from 'path';
// eslint-disable-next-line import/no-extraneous-dependencies
import { LogLevel } from '@aws-lambda-powertools/logger/lib/types';
import * as lambda from 'aws-cdk-lib/aws-lambda';
import { Stack, ArnFormat } from 'aws-cdk-lib/core';
import { Construct } from 'constructs';
import { LambdaMonitor } from '../constructs/monitoring';
import { Env } from '../types';

/**
 * Props for CreateFunction
 */
export interface CreateFunctionProps extends lambda.FunctionOptions {
  readonly logLevel?: LogLevel;
  readonly env?: Env;
}

/**
 * An AWS Lambda function which executes src/posts/create.
 */
export class CreateFunction extends lambda.Function {
  public readonly lambdaMonitor: LambdaMonitor;
  constructor(scope: Construct, id: string, props: CreateFunctionProps) {
    super(scope, id, {
      description: 'src/posts/create.lambda.ts',
      ...props,
      environment: {
        LOG_LEVEL: props?.logLevel ?? 'DEBUG',
        POWERTOOLS_LOGGER_LOG_EVENT: 'true',
        POWERTOOLS_SERVICE_NAME: 'CreateFunction',
        POWERTOOLS_METRICS_NAMESPACE: 'blogApp',
        ENV: props?.env ?? Env.DEV,
        ...props?.environment,
      },
      layers: [
        lambda.LayerVersion.fromLayerVersionArn(scope, 'PowertoolsLayer', Stack.of(scope).formatArn({
          resource: 'layer',
          service: 'lambda',
          arnFormat: ArnFormat.COLON_RESOURCE_NAME,
          resourceName: 'AWSLambdaPowertoolsTypeScript:15',
          account: '094274105915',
        })),
      ],
      memorySize: props?.memorySize ?? 256,
      tracing: lambda.Tracing.ACTIVE,
      architecture: lambda.Architecture.ARM_64,
      runtime: new lambda.Runtime('nodejs18.x', lambda.RuntimeFamily.NODEJS),
      handler: 'index.handler',
      code: lambda.Code.fromAsset(path.join(__dirname, '../../assets/posts/create.lambda')),
    });
    this.addEnvironment('AWS_NODEJS_CONNECTION_REUSE_ENABLED', '1', { removeInEdge: true });
    this.lambdaMonitor = new LambdaMonitor('CreateFunction', this);
  }
}