Hello
I am getting this error when I try to resolve a repository using ServiceProvider.GetService in CustomTenantResolver
Cannot access a disposed context instance. A common cause of this error is disposing a context instance that was resolved from dependency injection and then later trying to use the same context instance elsewhere in your application. This may occur if you are calling 'Dispose' on the context instance, or wrapping it in a using statement. If you are using dependency injection, you should let the dependency injection container take care of disposing context instances.
Hi Maliming
Its belonging to the customtenantresolver
Hello
I am getting this error when I try to use a EF Core Repository which is resolved using ServiceProvider in CustomTenantResolver.
System.ObjectDisposedException: Cannot access a disposed context instance. A common cause of this error is disposing a context instance that was resolved from dependency injection and then later trying to use the same context instance elsewhere in your application. This may occur if you are calling 'Dispose' on the context instance, or wrapping it in a using statement. If you are using dependency injection, you should let the dependency injection container take care of disposing context instances.
Thanks
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Hi
I am using it in Custom Tenant Resolver.
public class AccessTokenTenantResolver : HttpTenantResolveContributorBase
{
public override string Name => "AccessToken";
protected override async Task<string> GetTenantIdOrNameFromHttpContextOrNullAsync(ITenantResolveContext context, HttpContext httpContext)
{
IClientCredentialRepository clientCredentialRepository = context.ServiceProvider.GetRequiredService<IClientCredentialRepository>();
string accessCode = httpContext.Request.Headers["Authorization"];
if (!string.IsNullOrEmpty(accessCode))
{
var token = accessCode.Split(" ")[1];
var tokenHandler = new JwtSecurityTokenHandler();
var tokens = tokenHandler.ReadJwtToken(token);
var client_id = tokens.Claims.FirstOrDefault(x => x.Type == "client_id").Value;
var scopes = tokens.Claims.FirstOrDefault(x => x.Type == "scope").Value;
if (scopes.Contains("Scope"))
{
var client = await clientCredentialRepository.SingleOrDefaultAsync(x => x.ClientId == client_id);
if (client == null)
return await Task.FromResult<string>(null);
return await Task.FromResult(client.TenantId.Value.ToString());
}
}
return await Task.FromResult("37fb7b60-0ba6-8109-70b1-a049e5f25575");
}
}
I am getting the same error even after adding [UnitOfWork]
2021-08-23 16:01:08.732 +03:00 [WRN] System.ObjectDisposedException: Cannot access a disposed context instance. A common cause of this error is disposing a context instance that was resolved from dependency injection and then later trying to use the same context instance elsewhere in your application. This may occur if you are calling 'Dispose' on the context instance, or wrapping it in a using statement. If you are using dependency injection, you should let the dependency injection container take care of disposing context instances.
Object name: 'ClientManagementDbContext'.
at Microsoft.EntityFrameworkCore.DbContext.CheckDisposed()
at Microsoft.EntityFrameworkCore.DbContext.get_InternalServiceProvider()
at Microsoft.EntityFrameworkCore.DbContext.get_ChangeTracker()
at Microsoft.EntityFrameworkCore.Query.CompiledQueryCacheKeyGenerator.GenerateCacheKeyCore(Expression query, Boolean async)
at Microsoft.EntityFrameworkCore.Query.RelationalCompiledQueryCacheKeyGenerator.GenerateCacheKeyCore(Expression query, Boolean async)
at Npgsql.EntityFrameworkCore.PostgreSQL.Query.Internal.NpgsqlCompiledQueryCacheKeyGenerator.GenerateCacheKey(Expression query, Boolean async)
at Microsoft.EntityFrameworkCore.Query.Internal.QueryCompiler.ExecuteAsync[TResult](Expression query, CancellationToken cancellationToken)
at Microsoft.EntityFrameworkCore.Query.Internal.EntityQueryProvider.ExecuteAsync[TResult](Expression expression, CancellationToken cancellationToken)
at Microsoft.EntityFrameworkCore.EntityFrameworkQueryableExtensions.ExecuteAsync[TSource,TResult](MethodInfo operatorMethodInfo, IQueryable`1 source, Expression expression, CancellationToken cancellationToken)
at Microsoft.EntityFrameworkCore.EntityFrameworkQueryableExtensions.ExecuteAsync[TSource,TResult](MethodInfo operatorMethodInfo, IQueryable`1 source, LambdaExpression expression, CancellationToken cancellationToken)
at Microsoft.EntityFrameworkCore.EntityFrameworkQueryableExtensions.SingleOrDefaultAsync[TSource](IQueryable`1 source, Expression`1 predicate, CancellationToken cancellationToken)
at Zenithr.Tenant.Shared.AccessTokenTenantResolver.GetTenantIdOrNameFromHttpContextOrNullAsync(ITenantResolveContext context, HttpContext httpContext) in C:\websites\ZENITHR3.0\Zenithr.Shared.Tenant\AccessTokenTenantResolver.cs:line 43
at Volo.Abp.AspNetCore.MultiTenancy.HttpTenantResolveContributorBase.ResolveFromHttpContextAsync(ITenantResolveContext context, HttpContext httpContext)
at Volo.Abp.AspNetCore.MultiTenancy.HttpTenantResolveContributorBase.ResolveAsync(ITenantResolveContext context)
the using statement worked.
Why do I need to do the using for Unitofwork for the repository to work? can you explain? Is this a workaround or an actual solution?
Thanks for the Explaination and refund.