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A comment on Show HN: AI-powered web service combining FastAPI, Pydantic-AI, and MCP servers. Parent comment

Re:Show HN: AI-powered web service combining FastAPI, Pydant... by reactordev on Monday September 15, 2025 @06:18PM (#45255649)
Exactly this. From SQL Alchemy to pydantic model, from pydantic model to pydantic dto, from pydantic dto to json/protobuf/binary to ship over the wire…
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Re:Show HN: AI-powered web service combining FastAPI, Pydant... by morkalork on Monday September 15, 2025 @06:43PM (#45255872)
Okay, so seeing pydantic types used in every part of an app not just the API layer is normal.
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Re:Show HN: AI-powered web service combining FastAPI, Pydant... by reactordev on Monday September 15, 2025 @09:35PM (#45257020)
Yes. It’s the only way to ensure typing in a dynamic typed world. You can attrs, you can validate, but pydantic does it all.
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