hasmukhlalpatel

using System;
using System.Collections;
using System.Collections.Generic;
using System.Linq;
using System.Linq.Expressions;
using System.Reflection;

namespace Titan.ODataClient
{
    public class CustomLinqProvider<T> : IQueryable<T>, IQueryProvider

hasmukhlalpatel

public class ValidateMe : IValidatableObject
{
    [Required]
    public bool Enable { get; set; }

    [Range(1, 5)]
    public int Prop1 { get; set; }

    [Range(1, 5)]
    public int Prop2 { get; set; }

hasmukhlalpatel

_contextAccessor?.HttpContext is null

https://docs.microsoft.com/en-us/aspnet/core/fundamentals/websockets?view=aspnetcore-3.1#iisiis-express-support
--
If the HttpContext null-reference exception happens after deployment to Azure App Services or IIS, you might have forgotten to enable WebSockets.

Here is the deal:

If the app runs on Windows with IIS: WebSockets must be enabled.

hasmukhlalpatel

<%@ Page Language="C#" AutoEventWireup="true" ClassName="Default" %>
<%
    var url = string.Format("http{0}://{1}{2}", (Request.IsSecureConnection) ? "s" : "", Request.Url.Host, Page.ResolveUrl("relativeUrl"));
    var headers = String.Empty;
    foreach (var key in Request.Headers.AllKeys)
        headers += key + "=" + Request.Headers[key] + "<BR/>";

    var requestData = "";
    requestData+=(string.Format("scheme={0}",Request.Url.Scheme)+ "<BR/>");
    requestData+=(string.Format("Host={0}",Request.Url.Host)+ "<BR/>");

hasmukhlalpatel

public interface IJwtUtils
{
    public string GenerateToken(ClaimsIdentity claimsIdentity, AuthRequestContext requestContext,
        out long expiresIn,
        DateTime? issuedAt = null, DateTime? notBefore = null, DateTime? expires = null, double defaultExpiryMinutes = 30);
    public bool ValidateToken(string token, AuthRequestContext requestContext);
}

public class JwtUtils : IJwtUtils
{

hasmukhlalpatel

//Get JWKS url from https://{authserver}/.well-known/openid-configuration
//e.g. : https://demo.identityserver.io/.well-known/openid-configuration
/*
//get public keys (e "Exponent" &  n "Modulus") values "https://{authserver}/.well-known/openid-configuration/jwks"
//e.g. {"keys":[{"kty":..., "use":..., "kid":... "e":"AQAB", "n":"w7Zdfmece8iaB0kiTY...", "alg":"RS256" } ]}
//e.g. "https://demo.identityserver.io/.well-known/openid-configuration/jwks"
*/
public static void ValidateToken(string token){
  string tokenStr = "eyJraWQiOiIxZTlnZGs3IiwiYWxnIjoiUlMyNTYifQ.ewogImlzcyI6ICJodHRwOi8vc2VydmVyLmV4YW1wbGUuY29tIiwKICJzdWIiOiAiMjQ4Mjg5NzYxMDAxIiwKICJhdWQiOiAiczZCaGRSa3F0MyIsCiAibm9uY2UiOiAibi0wUzZfV3pBMk1qIiwKICJleHAiOiAxMzExMjgxOTcwLAogImlhdCI6IDEzMTEyODA5NzAsCiAiY19oYXNoIjogIkxEa3RLZG9RYWszUGswY25YeENsdEEiCn0.XW6uhdrkBgcGx6zVIrCiROpWURs-4goO1sKA4m9jhJIImiGg5muPUcNegx6sSv43c5DSn37sxCRrDZZm4ZPBKKgtYASMcE20SDgvYJdJS0cyuFw7Ijp_7WnIjcrl6B5cmoM6ylCvsLMwkoQAxVublMwH10oAxjzD6NEFsu9nipkszWhsPePf_rM4eMpkmCbTzume-fzZIi5V

hasmukhlalpatel

using System.Collections.Generic;
using Microsoft.AspNetCore.Components;

namespace MyApp.Components
{
    public abstract class BsComponentBase: ComponentBase
    {
        protected const string StylesBtnPrimary = "btn-primary";
        protected const string StylesBtnSecondary = "btn-secondary";
        protected const string StylesBtnSuccess = "btn-success";

hasmukhlalpatel

using System.Collections.Generic;
using Microsoft.AspNetCore.Components;

namespace MyApp.Components
{
    public abstract class BsComponentBase: ComponentBase
    {
        protected const string StylesBtnPrimary = "btn-primary";
        protected const string StylesBtnSecondary = "btn-secondary";
        protected const string StylesBtnSuccess = "btn-success";

hasmukhlalpatel

    var options = new JsonSerializerOptions
    {
        PropertyNamingPolicy = JsonNamingPolicy.CamelCase,
        Converters = { new StringToIntJsonConverter(), new StringToDecimalJsonConverter(), new JsonStringEnumConverter() },
        IgnoreNullValues = true
    };
    

var json = "{\"firstname\":\"John\",\"lastname\":\"Smith\"}";
var person = JsonSerializer.Parse<Person>(json, options);

hasmukhlalpatel

using HpBlazor.Components.Shared;
using Microsoft.AspNetCore.Components;
using Microsoft.AspNetCore.Components.Routing;
using System;
using System.Collections.Generic;
using System.Reflection;
using System.Threading.Tasks;

namespace BlazorApp1.Core
{