April 2022 Summaries

Lumigo, a startup, built an automated and stable testing infrastructure to support its rapid development and deployment of features. The infrastructure uses Cypress for end-to-end and UI tests, with over 700 tests running per pull request as part of their CI pipeline. To manage flaky tests, Lumigo developed custom tools, including "burn" and test retries, which help identify and fix issues quickly. The company also utilizes parallelization to reduce testing time and save costs. Additionally, Lumigo created custom commands and helper functions to improve readability and maintainability of the testing infrastructure, making it easier for developers to write tests and ensuring high standards are met despite rapid growth.

AWS has announced the release of the Lambda Function URLs feature, allowing users to create REST APIs backed by Lambda functions without the need for API Gateway. This new feature uses the same schema format as API Gateway payload format 2.0 and allows for CORS support and integration with AWS IAM. Users can benefit from this feature by saving on their AWS bill, using a user-friendly domain for their API, and implementing custom domains, request throttling, and handling different paths. However, there are still reasons to upgrade to API Gateway for advanced features such as securing APIs with Cognito User Pool or OpenID Connect providers, tracking usage by tenant, and building real-time applications.