By generating clients from OpenAPI specs, it is possible to have integration tests that check your front end and your back end are aligned. This post will show you how to do that using NSwag.

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Generate TypeScript clients from OpenAPI specs using NSwag to maintain type safety between polyglot front end and back end systems. Create integration tests that compare generated client code against committed versions to catch API contract changes during CI. When back end changes affect the OpenAPI spec, tests fail and prompt developers to regenerate clients, while TypeScript compilation catches breaking changes in front end code.

Keeping front end and back end in sync with NSwag generated clients