Recommend Project: Kiota, Hono, tRPC

There are two good benefits:

• Avoid manual alignment of JSON interfaces
• The rise of edge services blurs the lines between client/server. First and foremost is Next.js’s introduction of server actions this year.

Other JavaScript frameworks also have similar capabilities:
hono.dev,
trpc.io
They all enable front-end and back-end to call a unified set of functions, known as RPC (Remote Procedure Call). For example, client.posts.get()

Microsoft also has an open-source project named Kiota, which generates cross-language client RPC code based on OpenAPI schemas.

These libraries have similar usage patterns but different focuses.

microsoft/kiota:

Below are the client languages that Kiota can generate based on OpenAPI.
Supported languages CSharp Go Java PHP Python Ruby Swift TypeScript JavaScript