openapi-lambda-adapter

JavaScript/TypeScript library for making AWS Lambda to Lambda calls using openapi-client-axios. Current stable version is 1.4.0, active development. Provides a 'getLambdaRunner' function that wraps the AWS Lambda client to enable direct microservice-to-microservice invocations via OpenAPI operations, eliminating the need for API Gateway. Key differentiator: integrates with openapi-client-axios for type-safe API calls, supports IAM for permission management, and uses AWS SDK v3 for smaller bundle size. Requires Node.js >= 12.