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I agree. Ironically have inherited a lot of projects where they picked a "type-safe" language but didn't properly type the system boundaries, including RPC and database. Wrong priorities there.

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Adjacent to the article... there are a lot of bits from WCF I really liked and miss. I didn't really like a lot of the default way to use it... I generally would combine all the interfaces and a client instance generator into a single library to share (as opposed to the XML config crap the people tended to default with).

Today, there's tooling around OpenAPI/Swagger, but I don't think it's nearly as nice as using WCF for the server and client interfaces directly.

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