Improve integrations codegen

[daryllimyt]

Motivation

The current implementation isn't type-exhaustive

Benefits

• More type-exhaustive according to JSON Schema + OAS
• Instead of going pydantic -> zod, decoupling into an intermediate step to pydantic -> intermediate -> zod unlocks a lot of use cases:
  • Allows compiling integrations directly from public OpenAPI specs
  • Opens up future possibility of compiling integrations from other languages (though this would require generic/containerized runtimes)
• Offload codegen logic

Possible solutions

Using a common language agnostic spec

Convert from pydantic --> some spec --> zod.

Options

Pydantic -> OpenAPI

• https://docs.pydantic.dev/latest/concepts/json_schema/ Model.model_json_schema() is OAS compliant
• There exists well supported lib: https://docs.pydantic.dev/latest/integrations/datamodel_code_generator/ (this is for OpenAPI -> pydantic)

OpenAPI -> Zod

• https://zod.dev/?id=x-to-zod
• https://github.com/astahmer/openapi-zod-client