RicoSuter/NSwag

ApiException partly missing when referencing multiple contract files

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#3448 opened on May 4, 2021

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 (6 comments) (5 reactions) (0 assignees)C# (6,291 stars) (1,189 forks)batch import
help wanted

Description

I have multiple OpenApi contracts that I'm referencing with OpenApiReference in the csproj file. When I generate the code, I place each client in a different namespace. I have some types with same names that would clash in the same namespace.

In the generated code, I get ApiException code for one of the contracts, but not for the other. Since they are in different namespaces, this doesn't compile. I have tried setting the generateExceptionClasses and exceptionClass.

Contributor guide

Tech stack
csharprest api
Domain
apitooling
Issue type
bug
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
3
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
1-2 days
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
stale
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
clear
Prerequisites
C#NSwagOpenAPI.NET
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
30
Research direction
First, examine the code generation logic in the NSwag codebase, specifically the CSharp generator that handles exception classes. Look for how ApiException is generated for multiple contracts with different namespaces. Check the settings like generateExceptionClasses and exceptionClass that the user mentioned. Review the related files in the NSwag repository, such as the CSharp client generator and the template that produces ApiException. Also, consider if there is a known issue with sharing the same type across namespaces.