How do you create a custom AuthorizeAttribute in ASP.NET Core?

Question

I'm trying to make a custom authorization attribute in ASP.NET Core. In previous versions, it was possible to override bool AuthorizeCore(HttpContextBase httpContext). But this no longer exists in AuthorizeAttribute.   What is the current approach to making a custom AuthorizeAttribute?

Jay Krishna Reddy · Accepted Answer

Please find the below code for Custom Authorization in .Net Core public   class  ClaimRequirementAttribute : TypeFilterAttribute   {        public  ClaimRequirementAttribute( string  claimType,  string  claimValue) :  base ( typeof (ClaimRequirementFilter))       {           Arguments =  new   object [] { new  Claim(claimType, claimValue) };       }   }      public   class  ClaimRequirementFilter : IAuthorizationFilter   {        readonly  Claim _claim;           public  ClaimRequirementFilter(Claim claim)       {           _claim = claim;       }           public   void  OnAuthorization(AuthorizationFilterContext context)       {           var hasClaim = context.HttpContext.User.Claims.Any(c => c.Type == _claim.Type && c.Value == _claim.Value);            if  (!hasClaim)           {               context.Result =  new  ForbidResult();           }       }   }         [Route( "api/resource" )]   public   class  MyController : Controller   {       [ClaimRequirement(MyClaimTypes.Permission,  "CanReadResource" )]       [HttpGet]        public  IActionResult GetResource()       {            return  Ok();       }   }   Hope this solves your issue!