#Validation

7 questions

• What are DTOs in NestJS?NestJS#validationJunior›
• What are pipes and how does validation work?NestJS#validationJunior›
• What are Pydantic models in FastAPI?FastAPI#validationJunior›
• How do you add validation constraints to parameters?FastAPI#validationJunior›
• How do you write custom validation in Pydantic?FastAPI#validationMiddle›
• How do you model nested and complex request bodies?FastAPI#validationMiddle›
• What changed in Pydantic v2 and why does it matter for FastAPI?FastAPI#validationSenior›