[Authorize(TenantManagementPermissions.Tenants.Create)] public virtual async Task<TenantDto> CreateAsync(TenantCreateDto input) { var tenant = await TenantManager.CreateAsync(input.Name); input.MapExtraPropertiesTo(tenant);
await TenantRepository.InsertAsync(tenant);
await CurrentUnitOfWork.SaveChangesAsync();
await DistributedEventBus.PublishAsync(
new TenantCreatedEto
{
Id = tenant.Id,
Name = tenant.Name,
Properties =
{
{ "AdminEmail", input.AdminEmailAddress },
{ "AdminPassword", input.AdminPassword }
}
});
using (CurrentTenant.Change(tenant.Id, tenant.Name))
{
//TODO: Handle database creation?
// TODO: Seeder might be triggered via event handler.
await DataSeeder.SeedAsync(
new DataSeedContext(tenant.Id)
.WithProperty("AdminEmail", input.AdminEmailAddress)
.WithProperty("AdminPassword", input.AdminPassword)
);
}
return ObjectMapper.Map<Tenant, TenantDto>(tenant);
}
this is seeding twice one explicitly and one in event hander and this is creating all kind of issues for the second one alot of errors are reported and the tenant creation become too slow the data is seeded but the second one is unnecessary and making things very slow how can we solve that
5 Answer(s)
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0
Remove your explicit
DataSeeder.SeedAsync(...)call fromCreateAsync.
In ABP, tenant creation already triggers seeding via the tenant-created flow (you’re also publishingTenantCreatedEto, and your system has an event handler that seeds). CallingDataSeeder.SeedAsyncin the same method guarantees a duplicate seed run and will cause slowness + “already exists” type errors.So change your method to:
[Authorize(TenantManagementPermissions.Tenants.Create)] public virtual async Task<TenantDto> CreateAsync(TenantCreateDto input) { var tenant = await TenantManager.CreateAsync(input.Name); input.MapExtraPropertiesTo(tenant); await TenantRepository.InsertAsync(tenant); await CurrentUnitOfWork.SaveChangesAsync(); await DistributedEventBus.PublishAsync( new TenantCreatedEto { Id = tenant.Id, Name = tenant.Name, Properties = { { "AdminEmail", input.AdminEmailAddress }, { "AdminPassword", input.AdminPassword } } }); return ObjectMapper.Map<Tenant, TenantDto>(tenant); }Put all tenant-initialization logic into the event handler (single place).
The event handler should:- switch tenant (
using (CurrentTenant.Change(...))) - run migrations if you do separate DB per tenant
- call
DataSeeder.SeedAsync(new DataSeedContext(tenantId).WithProperty(...))
This ensures it runs exactly once and can be executed reliably even if tenant creation happens from another service/process.
- switch tenant (
If you want it synchronous (not recommended), then don’t publish
TenantCreatedEto.
That would stop the handler from running, but you lose the standard “tenant created” integration behavior. The recommended ABP approach is the opposite: keep the event, remove the manual seeding.
Links (validated):
- https://abp.io/docs/latest/framework/infrastructure/data-seeding
- https://abp.io/docs/latest/framework/architecture/multi-tenancy#change-the-current-tenant
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0
this doesn't solve it
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0
Hi, is the code you shared from the ABP module, or is it your own custom code?
Thanks.
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0
abp module TenantAppService in Volo.Abp.TenantManagement
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0
hi
Volo.Abp.TenantManagementis an open-source module. You have a commercial license; you should useVolo.Saas.Host.ApplicationBut I will check the open source side as well.
Thanks.
