NPM

Publish your backend API typings as an NPM package

Posted on by  
Christophe Hesters
In this post I suggest a way to publish your backend API typings as an NPM package. Frontend projects using can then depend on these typings to gain compile time type safety and code completion when using Typescript.

It’s quite common in a microservice style architecture to provide a type-safe client library that other services can use to communicate with your service. This can be package with a Retrofit client published to nexus by the maintainer of the service. Some projects might also generate that code from a OpenAPI spec or a gRPC proto file.

However, when we expose some of these APIs to the frontend, we lose the types. In this post I suggest a way to publish your backend API types as an NPM package. The frontend can then depend on these typings. Using typescript you now have compile time type safety and code completion. To see a sneak peak, scroll to the end :).

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