Issue with using swagger API in version 1.5.21

PowerShell Universal
1 
Product: PowerShell Universal
Version: 1.5.21
Hosted on IIS

We are not able to use swagger endpoint API with role.
When I try to create endpoint w/o it, everything works great.
When I add a role, I get 404. Following can be found in the logs:

2021-10-24T23:55:37.7173660+02:00 0HMCN1PKDIF6F:00000042 [INF] Request starting HTTP/1.1 GET http://f.q.d.n/api/v1/endpoint   (ca22a1cb)
2021-10-24T23:55:37.7187058+02:00 0HMCN1PKDIF6F:00000042 [INF] Authorization was successful. (0d575a54)
2021-10-24T23:55:37.7187298+02:00 0HMCN1PKDIF6F:00000042 [INF] Executing endpoint '"UniversalAutomation.EndpointController.Get (Universal.Server)"' (500cc934)
2021-10-24T23:55:37.7187684+02:00 0HMCN1PKDIF6F:00000042 [INF] Route matched with "{action = \"Get\", controller = \"Endpoint\"}". Executing controller action with signature "System.Collections.Generic.IEnumerable`1[UniversalAutomation.Endpoint] Get()" on controller "UniversalAutomation.EndpointController" ("Universal.Server"). (122b2fdf)
2021-10-24T23:55:37.7188046+02:00 0HMCN1PKDIF6F:00000042 [INF] Executing ObjectResult, writing value of type '"System.Collections.ObjectModel.ReadOnlyCollection`1[[UniversalAutomation.Endpoint, UniversalAutomation.Common, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null]]"'. (8a1b66c8)
2021-10-24T23:55:37.7189529+02:00 0HMCN1PKDIF6F:00000042 [INF] Executed action "UniversalAutomation.EndpointController.Get (Universal.Server)" in 0.1644ms (afa2e885)
2021-10-24T23:55:37.7189699+02:00 0HMCN1PKDIF6F:00000042 [INF] Executed endpoint '"UniversalAutomation.EndpointController.Get (Universal.Server)"' (99874f2b)
2021-10-24T23:55:37.7190020+02:00 0HMCN1PKDIF6F:00000042 [INF] Request finished in 1.6421ms 200 application/json; charset=utf-8 (791a596a)
2021-10-24T23:55:37.7244976+02:00 0HMCN1PKDIF6F:00000043 [INF] Request starting HTTP/1.1 POST http://dnsapi-test.ams.optiver.com/api/v1/endpoint application/json 2209 (ca22a1cb)
2021-10-24T23:55:37.7256619+02:00 0HMCN1PKDIF6F:00000043 [INF] Authorization failed. (b15dd539)
2021-10-24T23:55:37.7257067+02:00 0HMCN1PKDIF6F:00000043 [INF] AuthenticationScheme: "Cookies" was challenged. (d45f1f38)
2021-10-24T23:55:37.7257216+02:00 0HMCN1PKDIF6F:00000043 [INF] AuthenticationScheme: "Bearer" was challenged. (d45f1f38)
2021-10-24T23:55:37.7267977+02:00 0HMCN1PKDIF6F:00000043 [INF] Authorization failed. (b15dd539)
2021-10-24T23:55:37.7268319+02:00 0HMCN1PKDIF6F:00000043 [INF] AuthenticationScheme: "Cookies" was challenged. (d45f1f38)
2021-10-24T23:55:37.7268459+02:00 0HMCN1PKDIF6F:00000043 [INF] AuthenticationScheme: "Bearer" was challenged. (d45f1f38)
2021-10-24T23:55:37.7268804+02:00 0HMCN1PKDIF6F:00000043 [INF] Request finished in 2.3911ms 401  (791a596a)
2021-10-24T23:55:37.7302309+02:00 0HMCN1PKDIF6F:00000044 [INF] Request starting HTTP/1.1 POST http://dnsapi-test.ams.optiver.com/api/v1/endpoint application/json 2209 (ca22a1cb)
2021-10-24T23:55:37.7315755+02:00 0HMCN1PKDIF6F:00000044 [INF] Authorization was successful. (0d575a54)
2021-10-24T23:55:37.7316072+02:00 0HMCN1PKDIF6F:00000044 [INF] Executing endpoint '"UniversalAutomation.EndpointController.Post (Universal.Server)"' (500cc934)
2021-10-24T23:55:37.7316564+02:00 0HMCN1PKDIF6F:00000044 [INF] Route matched with "{action = \"Post\", controller = \"Endpoint\"}". Executing controller action with signature "System.Threading.Tasks.Task`1[UniversalAutomation.Endpoint] Post(UniversalAutomation.Endpoint)" on controller "UniversalAutomation.EndpointController" ("Universal.Server"). (122b2fdf)
2021-10-24T23:55:37.7326327+02:00 0HMCN1PKDIF6F:00000044 [INF] Executed action "UniversalAutomation.EndpointController.Post (Universal.Server)" in 0.9516ms (afa2e885)
2021-10-24T23:55:37.7326952+02:00 0HMCN1PKDIF6F:00000044 [INF] Executed endpoint '"UniversalAutomation.EndpointController.Post (Universal.Server)"' (99874f2b)
2021-10-24T23:55:37.7344967+02:00 0HMCN1PKDIF6F:00000044 [ERR] An unhandled exception has occurred while executing the request. (48a46595)
System.NullReferenceException: Object reference not set to an instance of an object.
   at UniversalAutomation.EndpointController.Post(Endpoint endpoint) in D:\a\universal\universal\src\Universal.Server\Controllers\EndpointController.cs:line 154
   at lambda_method(Closure , Object )
   at Microsoft.AspNetCore.Mvc.Infrastructure.ActionMethodExecutor.AwaitableObjectResultExecutor.Execute(IActionResultTypeMapper mapper, ObjectMethodExecutor executor, Object controller, Object[] arguments)
   at Microsoft.AspNetCore.Mvc.Infrastructure.ControllerActionInvoker.<InvokeActionMethodAsync>g__Awaited|12_0(ControllerActionInvoker invoker, ValueTask`1 actionResultValueTask)
   at Microsoft.AspNetCore.Mvc.Infrastructure.ControllerActionInvoker.<InvokeNextActionFilterAsync>g__Awaited|10_0(ControllerActionInvoker invoker, Task lastTask, State next, Scope scope, Object state, Boolean isCompleted)
   at Microsoft.AspNetCore.Mvc.Infrastructure.ControllerActionInvoker.Rethrow(ActionExecutedContextSealed context)
   at Microsoft.AspNetCore.Mvc.Infrastructure.ControllerActionInvoker.Next(State& next, Scope& scope, Object& state, Boolean& isCompleted)
   at Microsoft.AspNetCore.Mvc.Infrastructure.ControllerActionInvoker.InvokeInnerFilterAsync()
--- End of stack trace from previous location where exception was thrown ---
   at Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.<InvokeNextResourceFilter>g__Awaited|24_0(ResourceInvoker invoker, Task lastTask, State next, Scope scope, Object state, Boolean isCompleted)
   at Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.Rethrow(ResourceExecutedContextSealed context)
   at Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.Next(State& next, Scope& scope, Object& state, Boolean& isCompleted)
   at Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.InvokeFilterPipelineAsync()
--- End of stack trace from previous location where exception was thrown ---
   at Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.<InvokeAsync>g__Logged|17_1(ResourceInvoker invoker)
   at Microsoft.AspNetCore.Routing.EndpointMiddleware.<Invoke>g__AwaitRequestTask|6_0(Endpoint endpoint, Task requestTask, ILogger logger)
   at Microsoft.AspNetCore.Authorization.AuthorizationMiddleware.Invoke(HttpContext context)
   at Universal.Server.Middleware.RoutingMiddleware.Invoke(HttpContext httpContext, IPolicyEvaluator policyEvaluator) in D:\a\universal\universal\src\Universal.Server\Middleware\RoutingMiddleware.cs:line 113
   at Swashbuckle.AspNetCore.SwaggerUI.SwaggerUIMiddleware.Invoke(HttpContext httpContext)
   at Swashbuckle.AspNetCore.Swagger.SwaggerMiddleware.Invoke(HttpContext httpContext, ISwaggerProvider swaggerProvider)
   at AspNetCoreRateLimit.RateLimitMiddleware`1.Invoke(HttpContext context) in D:\a\universal\universal\src\AspNetCoreRateLimit\Middleware\RateLimitMiddleware.cs:line 109
   at Microsoft.AspNetCore.Session.SessionMiddleware.Invoke(HttpContext context)
   at Microsoft.AspNetCore.Session.SessionMiddleware.Invoke(HttpContext context)
   at Microsoft.AspNetCore.Diagnostics.ExceptionHandlerMiddleware.<Invoke>g__Awaited|6_0(ExceptionHandlerMiddleware middleware, HttpContext context, Task task)
2021-10-24T23:55:37.7366527+02:00 0HMCN1PKDIF6F:00000044 [INF] Authorization was successful. (0d575a54)
2021-10-24T23:55:37.7366747+02:00 0HMCN1PKDIF6F:00000044 [INF] Executing endpoint '"UniversalAutomation.EndpointController.Post (Universal.Server)"' (500cc934)
2021-10-24T23:55:37.7367161+02:00 0HMCN1PKDIF6F:00000044 [INF] Route matched with "{action = \"Post\", controller = \"Endpoint\"}". Executing controller action with signature "System.Threading.Tasks.Task`1[UniversalAutomation.Endpoint] Post(UniversalAutomation.Endpoint)" on controller "UniversalAutomation.EndpointController" ("Universal.Server"). (122b2fdf)
2021-10-24T23:55:37.7373886+02:00 0HMCN1PKDIF6F:00000044 [INF] Executed action "UniversalAutomation.EndpointController.Post (Universal.Server)" in 0.644ms (afa2e885)
2021-10-24T23:55:37.7374500+02:00 0HMCN1PKDIF6F:00000044 [INF] Executed endpoint '"UniversalAutomation.EndpointController.Post (Universal.Server)"' (99874f2b)
2021-10-24T23:55:37.7389280+02:00 0HMCN1PKDIF6F:00000044 [ERR] An unhandled exception has occurred while executing the request. (48a46595)
System.NullReferenceException: Object reference not set to an instance of an object.
   at UniversalAutomation.EndpointController.Post(Endpoint endpoint) in D:\a\universal\universal\src\Universal.Server\Controllers\EndpointController.cs:line 154
   at lambda_method(Closure , Object )
   at Microsoft.AspNetCore.Mvc.Infrastructure.ActionMethodExecutor.AwaitableObjectResultExecutor.Execute(IActionResultTypeMapper mapper, ObjectMethodExecutor executor, Object controller, Object[] arguments)
   at Microsoft.AspNetCore.Mvc.Infrastructure.ControllerActionInvoker.<InvokeActionMethodAsync>g__Awaited|12_0(ControllerActionInvoker invoker, ValueTask`1 actionResultValueTask)
   at Microsoft.AspNetCore.Mvc.Infrastructure.ControllerActionInvoker.<InvokeNextActionFilterAsync>g__Awaited|10_0(ControllerActionInvoker invoker, Task lastTask, State next, Scope scope, Object state, Boolean isCompleted)
   at Microsoft.AspNetCore.Mvc.Infrastructure.ControllerActionInvoker.Rethrow(ActionExecutedContextSealed context)
   at Microsoft.AspNetCore.Mvc.Infrastructure.ControllerActionInvoker.Next(State& next, Scope& scope, Object& state, Boolean& isCompleted)
   at Microsoft.AspNetCore.Mvc.Infrastructure.ControllerActionInvoker.InvokeInnerFilterAsync()
--- End of stack trace from previous location where exception was thrown ---
   at Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.<InvokeNextResourceFilter>g__Awaited|24_0(ResourceInvoker invoker, Task lastTask, State next, Scope scope, Object state, Boolean isCompleted)
   at Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.Rethrow(ResourceExecutedContextSealed context)
   at Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.Next(State& next, Scope& scope, Object& state, Boolean& isCompleted)
   at Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.InvokeFilterPipelineAsync()
--- End of stack trace from previous location where exception was thrown ---
   at Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.<InvokeAsync>g__Logged|17_1(ResourceInvoker invoker)
   at Microsoft.AspNetCore.Routing.EndpointMiddleware.<Invoke>g__AwaitRequestTask|6_0(Endpoint endpoint, Task requestTask, ILogger logger)
   at Microsoft.AspNetCore.Authorization.AuthorizationMiddleware.Invoke(HttpContext context)
   at Universal.Server.Middleware.RoutingMiddleware.Invoke(HttpContext httpContext, IPolicyEvaluator policyEvaluator) in D:\a\universal\universal\src\Universal.Server\Middleware\RoutingMiddleware.cs:line 113
   at Swashbuckle.AspNetCore.SwaggerUI.SwaggerUIMiddleware.Invoke(HttpContext httpContext)
   at Swashbuckle.AspNetCore.Swagger.SwaggerMiddleware.Invoke(HttpContext httpContext, ISwaggerProvider swaggerProvider)
   at AspNetCoreRateLimit.RateLimitMiddleware`1.Invoke(HttpContext context) in D:\a\universal\universal\src\AspNetCoreRateLimit\Middleware\RateLimitMiddleware.cs:line 109
   at Microsoft.AspNetCore.Session.SessionMiddleware.Invoke(HttpContext context)
   at Microsoft.AspNetCore.Session.SessionMiddleware.Invoke(HttpContext context)
   at Microsoft.AspNetCore.Diagnostics.ExceptionHandlerMiddleware.<Invoke>g__Awaited|6_0(ExceptionHandlerMiddleware middleware, HttpContext context, Task task)
2021-10-24T23:55:37.7400259+02:00 0HMCN1PKDIF6F:00000044 [INF] Request finished in 9.813ms 404  (791a596a)

When I try to use same method on the older versions it works fine.
Any ideas what could be the reason for that?

2

Can you share the POST body you are providing? It’s likely because the role property is an array and it’s failing to deserialize it. In the past, it was a single value but that changed some time during the 1.5 releases.

3

It was exactly that. The sad part is that I’ve noticed changes in the format, tried to send JSON with an array and it still failed. I suspect I just made a typo in a hand-crafted JSON I was sending. MrTypo strikes again I guess. :wink:

Thanks for a suggestion!

BTW: I tried to do the same using admin portal and I got 404 there too - perhaps that something worth fixing…?