I generated my server stub for ASP.NET Core 3.1 using the openapi generator with the following command:
npx @openapitools/openapi-generator-cli generate -i myapi.json -g aspnetcore -o C:\myapi --additional-properties aspnetCoreVersion=3.1
After opening that project in Visual Studio 2019 and running it I get the swagger page where I can try out the different endpoints. So far OK.
However: after publishing this on our IIS Server and visiting the proper URL that swagger page is loading with the error:
Not found: /swagger/1.0.0/openapi.json
The endpoint itself (GET request) can be reached.
The Swagger Endpoint code in startup.cs is the default code as it was generated by open-api generator:
app.UseSwagger(c =>
{
c.RouteTemplate = "swagger/{documentName}/openapi.json";
})
.UseSwaggerUI(c =>
{
//TODO: Either use the SwaggerGen generated Swagger contract (generated from C# classes)
c.SwaggerEndpoint("/swagger/1.0.0/openapi.json", "Swagger WP RUH Delivery");
//TODO: Or alternatively use the original Swagger contract that's included in the static files
// c.SwaggerEndpoint("/openapi-original.json", "Swagger WP RUH Delivery Original");
});
Why is this Swagger page working on my machine, but on IIS things go wrong? I found some hints on changing the c.SwaggerEndpoint in startup.cs, but nothing helped.
Try to remove /swagger/
from the URL path:
c.SwaggerEndpoint("1.0.0/openapi.json", "Swagger WP RUH Delivery")