passed in graphQL path into middleware (#9)

* passed in graphQL path into middleware

* used Path.StartsWithSegments to check /graphql

Co-authored-by: Lydon Chandra <lydonch@gmail.com>

src/GraphQL.Upload.AspNetCore/ApplicationBuilderExtensions.cs

@@ -40,7 +40,7 @@ public static IApplicationBuilder UseGraphQLUpload<TSchema>(this IApplicationBui
             if (options is null)
                 throw new ArgumentNullException(nameof(options));
 
-            return builder.UseMiddleware<GraphQLUploadMiddleware<TSchema>>(options);
+            return builder.UseMiddleware<GraphQLUploadMiddleware<TSchema>>(options, path);
         }
     }
 }

src/GraphQL.Upload.AspNetCore/GraphQLUploadMiddleware.cs

@@ -19,20 +19,23 @@ public class GraphQLUploadMiddleware<TSchema>
         private readonly RequestDelegate _next;
         private readonly GraphQLUploadOptions _options;
         private readonly GraphQLUploadRequestDeserializer _requestDeserializer;
-
+        private readonly string _graphQLPath;
         public GraphQLUploadMiddleware(ILogger<GraphQLUploadMiddleware<TSchema>> logger, RequestDelegate next,
-            GraphQLUploadOptions options, GraphQLUploadRequestDeserializer requestDeserializer)
+            GraphQLUploadOptions options, PathString path, GraphQLUploadRequestDeserializer requestDeserializer)
         {
             _logger = logger;
             _next = next ?? throw new ArgumentNullException(nameof(next));
             _options = options;
             _requestDeserializer = requestDeserializer;
+            _graphQLPath = path;
         }
 
         public async Task InvokeAsync(HttpContext context)
         {
-            if (!context.Request.HasFormContentType)
+            if (!context.Request.HasFormContentType                 
+                || !context.Request.Path.StartsWithSegments( _graphQLPath ))
             {
+                // not graphql path, eg. Form Authentication, skip this middleware
                 await _next(context);
                 return;
             }