Blazor clientside cookies

using Microsoft.JSInterop;

namespace MyProject.Utils
{
    public interface ICookie
    {
        public Task SetValue(string key, string value, int? days = null);
        public Task<string> GetValue(string key, string def = "");
    }

    public class Cookie : ICookie
    {
        readonly IJSRuntime JSRuntime;
        string expires = "";

        public Cookie(IJSRuntime jsRuntime)
        {
            JSRuntime = jsRuntime;
            ExpireDays = 300;
        }

        public async Task SetValue(string key, string value, int? days = null)
        {
            var curExp = (days != null) ? (days > 0 ? DateToUTC(days.Value) : "") : expires;
            await SetCookie($"{key}={value}; expires={curExp}; path=/");
        }

        public async Task<string> GetValue(string key, string def = "")
        {
            var cValue = await GetCookie();
            if (string.IsNullOrEmpty(cValue)) return def;                

            var vals = cValue.Split(';');
            foreach (var val in vals)
                if(!string.IsNullOrEmpty(val) && val.IndexOf('=') > 0)
                    if(val.Substring(1, val.IndexOf('=') - 1).Trim().Equals(key, StringComparison.OrdinalIgnoreCase))
                        return val.Substring(val.IndexOf('=') + 1);
            return def;
        }

        private async Task SetCookie(string value)
        {
            await JSRuntime.InvokeVoidAsync("eval", $"document.cookie = \"{value}\"");
        }

        private async Task<string> GetCookie()
        {
            return await JSRuntime.InvokeAsync<string>("eval", $"document.cookie");
        }

        public int ExpireDays
        {
            set => expires = DateToUTC(value);
        }

        private static string DateToUTC(int days) => DateTime.Now.AddDays(days).ToUniversalTime().ToString("R");
    }
}

Source: stackoverflow.com

Similar codes

0 vote141 views1 answer
Scale between tow ranges c#
C#
0 vote174 views1 answer
Unity roam, chase, attack states
C#Unity
1 vote183 views2 answers
Unity getcomponent transform.position
C#Unity
0 vote134 views1 answer
If checkbox checked in c#
C#
1 vote152 views1 answer
C# socket bind to dns name
C#
0 vote153 views1 answer
Blazor use static json files
C#
0 vote140 views1 answer
Mvc invalidOperationException: Method 'InvokeAsync' of view component should be declared to return Task<t>
C#
29 votes141 views3 answers
Delay in unity
C#
20 votes138 views2 answers
How to generate random letters in C#
C#
0 vote136 views1 answer
IOS app crashing on ios 15 unity
C#Unity