Microsoft.AspNetCore.OpenApi does not render schema when a Type is reused #63054
Description
Is there an existing issue for this?
- I have searched the existing issues
Describe the bug
Microsoft.AspNetCore.OpenApi v10.0.0-preview.6.25358.103 does not render schema when a Type is reused within different types.
It took me over an hour to tear down my project down to the minimum repro I could encounter, so this is as minimum as I was able to get in order to repro it.
Notice "CityResponse": { } in the Open API document below:
{
"openapi": "3.1.1",
"info": {
"title": "OpenApiBugRepro | v1",
"version": "1.0.0"
},
"servers": [
{
"url": "https://localhost:4000/"
}
],
"paths": {
"/": {
"get": {
"tags": [
"OpenApiBugRepro"
],
"responses": {
"200": {
"description": "OK",
"content": {
"application/json": {
"schema": {
"$ref": "#/components/schemas/ProjectResponse"
}
}
}
}
}
}
}
},
"components": {
"schemas": {
"AddressResponse": {
"type": "object",
"properties": {
"city": {
"$ref": "#/components/schemas/CityResponse"
}
}
},
"BuilderResponse": {
"type": "object",
"properties": {
"address": {
"$ref": "#/components/schemas/AddressResponse"
}
}
},
"CityResponse": { },
"ProjectResponse": {
"type": "object",
"properties": {
"address": {
"$ref": "#/components/schemas/AddressResponse"
},
"builder": {
"$ref": "#/components/schemas/BuilderResponse"
}
}
}
}
},
"tags": [
{
"name": "OpenApiBugRepro"
}
]
}Expected Behavior
Reused Types should render their schemas.
Steps To Reproduce
.csproj:
<Project Sdk="Microsoft.NET.Sdk.Web">
<PropertyGroup>
<TargetFramework>net10.0</TargetFramework>
<Nullable>enable</Nullable>
<ImplicitUsings>enable</ImplicitUsings>
<LangVersion>preview</LangVersion>
</PropertyGroup>
<ItemGroup>
<PackageReference Include="Microsoft.AspNetCore.OpenApi" Version="10.0.0-preview.6.25358.103"/>
<PackageReference Include="Microsoft.OpenApi" Version="2.0.0"/>
</ItemGroup>
</Project>Program.cs:
var builder = WebApplication.CreateBuilder(args);
builder.Services.AddOpenApi();
var app = builder.Build();
app.MapOpenApi();
app.MapGet("/", () =>
{
var response = new ProjectResponse();
return TypedResults.Ok(response);
});
app.Run();
internal sealed record ProjectResponse
{
public AddressResponse Address { get; init; } = new();
public BuilderResponse Builder { get; init; } = new();
}
internal sealed record BuilderResponse
{
public AddressResponse Address { get; init; } = new();
}
internal sealed record AddressResponse
{
public CityResponse City { get; init; } = new();
}
internal sealed record CityResponse
{
public string Name { get; init; } = "";
}Exceptions (if any)
No response
.NET Version
10.0.100-preview.6.25358.103
Anything else?
No response