GetRequriedService (#20028)

Tratcher · web-flow · commit 6a6a63215d68 · 2020-09-28T07:41:46.000-10:00
diff --git a/aspnetcore/security/authentication/certauth.md b/aspnetcore/security/authentication/certauth.md
@@ -183,7 +183,7 @@ services.AddAuthentication(
             {
                 var validationService =
                     context.HttpContext.RequestServices
-                        .GetService<ICertificateValidationService>();
+                        .GetRequiredService<ICertificateValidationService>();
                 
                 if (validationService.ValidateCertificate(
                     context.ClientCertificate))

Original file line number	Diff line number	Diff line change
`@@ -183,7 +183,7 @@ services.AddAuthentication(`
`183`	`183`	`{`
`184`	`184`	`var validationService =`
`185`	`185`	`context.HttpContext.RequestServices`
`186`		`- .GetService<ICertificateValidationService>();`
	`186`	`+ .GetRequiredService<ICertificateValidationService>();`
`187`	`187`
`188`	`188`	`if (validationService.ValidateCertificate(`
`189`	`189`	`context.ClientCertificate))`