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Blazor WebApp Error on Ubuntu/Nginx Production #7665


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hanntd created

Hi, I dev Blazor WebApp with v8.2 running well on development environment but when publishing to production running on nginx/ubuntu the error happened after clicked on Login button at Login Form. The home page still show ok, then click on Login --> Login Form show ok, too--> Enter user name and pwd, click login --> error happened: Link of Log file: https://drive.google.com/file/d/1bjEl2FtGVu6hYSlQj26jD9QznCYKLo7g/view?usp=sharing


8 Answer(s)
  • User Avatar
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    maliming created
    Support Team Fullstack Developer

    hi

    1.

    Please share the code of HQSOFT.eBiz.CoreBackend.AuditLogging.ExtendedAuditLogContributor class. there is a NullReferenceException

    2.

    Please set log level to Debug and re-share the logs.

    public class Program
    {
        public async static Task<int> Main(string[] args)
        {
            Log.Logger = new LoggerConfiguration()
                .MinimumLevel.Debug()
                .MinimumLevel.Override("Microsoft.EntityFrameworkCore", LogEventLevel.Warning)
                .Enrich.FromLogContext()
                .WriteTo.Async(c => c.File("Logs/logs.txt"))
                .WriteTo.Async(c => c.Console())
                .CreateLogger();
    

    Thanks.

  • User Avatar
    0
    hanntd created

    Here are of AuditLogContributor (I have fixed issue of NullReferenceException) and new log file:

    public class ExtendedAuditLogContributor : AuditLogContributor
    	{
    		public override void PreContribute(AuditLogContributionContext context)
    		{
    			var urlProp = context.AuditInfo.GetProperty("ScreenUrl");
    			var url = context.GetHttpContext().Request.Headers["screen-url"].ToString();
    			if (urlProp != null && string.IsNullOrEmpty(url))
    				context.AuditInfo.SetProperty("ScreenUrl", url);
    		}
    
    		public override void PostContribute(AuditLogContributionContext context)
    		{
    			var currentUser = context.ServiceProvider.GetRequiredService<ICurrentUser>();
    
    			foreach (var change in context.AuditInfo.EntityChanges)
    			{
    				var screenUrl = context.GetHttpContext().Request.Headers["screen-url"].ToString();
    				if (string.IsNullOrEmpty(screenUrl))
    					continue;
    				var uri = new Uri(screenUrl);
    				var path = uri.PathAndQuery;
    				var lastIndex = path.LastIndexOf('/');
    
    				var urlDoc = path.Substring(0, lastIndex + 1);
    				var docId = path.Substring(lastIndex + 1);
    
    				change.SetProperty("ScreenUrl", urlDoc);
    				change.SetProperty("DocId", docId);
    
    				change.SetProperty("UserId", currentUser.Id);
    			}
    		}
    	}
    

    https://drive.google.com/file/d/1kQpTa7rcIv3-MR4S6f5yUyfJ-bslmhGH/view?usp=sharing

  • User Avatar
    0
    maliming created
    Support Team Fullstack Developer

    hi

    Your PreContribute has a problem please debug your app to see which variable is null

    [WRN] Object reference not set to an instance of an object.
    System.NullReferenceException: Object reference not set to an instance of an object.
       at HQSOFT.eBiz.CoreBackend.AuditLogging.ExtendedAuditLogContributor.PreContribute(AuditLogContributionContext context)
       at Volo.Abp.Auditing.AuditingHelper.ExecutePreContributors(AuditLogInfo auditLogInfo)
    
    public override void PreContribute(AuditLogContributionContext context)
    {
        var urlProp = context.AuditInfo.GetProperty("ScreenUrl");
        var url = context.GetHttpContext().Request.Headers["screen-url"].ToString();
        if (urlProp != null && string.IsNullOrEmpty(url))
        context.AuditInfo.SetProperty("ScreenUrl", url);
    }
    
    
  • User Avatar
    0
    maliming created
    Support Team Fullstack Developer

    hi

    Do you have the configuration below in your Blazor client project?

    https://abp.io/docs/latest/modules/chat#blazor-webassembly-ui

    
    Configure<ChatBlazorWebAssemblyOptions>(options =>
    {
        options.SignalrUrl = builder.Configuration["RemoteServices:Chat:BaseUrl"];
    });
    
  • User Avatar
    0
    hanntd created

    Hi, Because Chat module is currently not working if injected in Blazor Client as I reported in another ticket so I didn't injected but i forgot to remove in others project. I have remove Chat module in others projects and now my application running ok on production. Thanks

  • User Avatar
    0
    maliming created
    Support Team Fullstack Developer

    Thanks. I will check your other ticket. The current ticket has been refunded.

  • User Avatar
    0
    hanntd created

    Thanks

  • User Avatar
    0
    maliming created
    Support Team Fullstack Developer

    : )

Made with ❤️ on ABP v9.1.0-preview. Updated on December 12, 2024, 07:15