Swagger Generator - can't add server to list

I’m using Nswag 13.1.2 in .NET Core 3.0.0. I’m trying to add new Server and Scheme to my swagger document.

services.AddOpenApiDocument(c =>
{
	c.PostProcess = d =>
	{
		d.Schemes.Add(OpenApiSchema.Https);
		d.Servers.Add(new OpenApiServer() { Url = "foo.com" });
	};
});

Unfortunatelly in my swagger there is still only localhost server option.

[vic10us]

The issue I was facing was that when hosting on multiple endpoints (http, https, proxy, etc…) only the first would be stored in the documentCache. I was able to fix this by doing the following:

app.UseOpenApi(options =>
{
    options.CreateDocumentCacheKey = request => request.GetServerUrl();
	options.PostProcess = (document, request) =>
	{
        var serverUrl = request.GetServerUrl();
		document.Servers.Clear();
        document.Servers.Add(new OpenApiServer { Url = serverUrl });
	};
});

This creates a unique document cache per server url instead of the default String.Empty. Works like a charm.

[larskinn]

@vic10us / @RicoSuter

The issue I was facing was that when hosting on multiple endpoints (http, https, proxy, etc…) only the first would be stored in the documentCache.

I was having this issue as well, and tried this solution. But to actually use request.GetServerUrl(), I had to copy HttpRequestExtension from here into my project, as the HttpRequestExtension class is internal.

After add doing that, the server url is correct both directly and through reverse proxy. But is there a better way to go about this? Since you didn’t mention anything like that @vic10us I assume you didn’t have to copy it into your project?