✅ How to standardize API response formats in C# ?
Hi everyone, I’m working on a C# project and I’ve run into a huge inconsistency problem with my API responses. Here’s what’s happening:
I’m using FluentValidation for request validation. If validation fails, I throw a validation exception.
I have a global exception handler that catches exceptions and returns ProblemDetails.
For successful requests, I return my normal response DTO.
The problem is that my API responses are all over the place — the client sometimes gets ProblemDetails, sometimes a DTO, with no consistent structure. This is making the API confusing and hard to consume.
I’m lost on how to clean this mess.
I’m using FluentValidation for request validation. If validation fails, I throw a validation exception.
I have a global exception handler that catches exceptions and returns ProblemDetails.
For successful requests, I return my normal response DTO.
The problem is that my API responses are all over the place — the client sometimes gets ProblemDetails, sometimes a DTO, with no consistent structure. This is making the API confusing and hard to consume.
I’m lost on how to clean this mess.
