How could i manage multiple database in linq2db - asp.net-core

Question

I want to manage multiple database connection in my application.I am using ASP.NET Core & linq2db. For my first database connection i have create below configuration and its working fine.
public class DatabaseXSettings : ILinqToDBSettings
{
public IEnumerable<IDataProviderSettings> DataProviders
{
get { yield break; }
}
public string DefaultConfiguration => "Oracle.Managed";
public string DefaultDataProvider => "Oracle.Managed";
public string ConnectionString { get; set; }
public DatabaseXSettings(string connectionString)
{
ConnectionString = connectionString;
}
public IEnumerable<IConnectionStringSettings> ConnectionStrings
{
get
{
yield return
new ConnectionStringSettings
{
Name = "DatabaseX",
ProviderName = "Oracle.Managed",
ConnectionString = ConnectionString
};
}
}
}
public static class DatabaseXStartup
{
private static bool _started;
public static void Init(string connectionString)
{
if (!_started)
{
DataConnection.DefaultSettings = new DatabaseXSettings(connectionString);
_started = true;
}
}
}
public class DatabaseX : DataConnection
{
public DatabaseX() : base("DatabaseX") { }
}
For My Second Database
For my second database connection i create a similar configuration like this. But this not working.
public class DatabaseYSettings : ILinqToDBSettings
{
.......
}
public static class DatabaseYStartup
{
.......
}
public class DatabaseY : DataConnection
{
public DatabaseY() : base("DatabaseY") { }
}
My appsettings.json
{
"Logging": {
"LogLevel": {
"Default": "Warning"
}
},
"AllowedHosts": "*",
"ConnectionStrings": {
"DatabaseX": "Data Source=..........",
"DatabaseY": "Data Source=.........."
}
}
LinqToDB.LinqToDBException: 'Configuration 'DatabaseY' is not defined.'
Is there any other way to do that.

Answer 1

Edit: added example
You don't need two ILinqToDBSettings instances. You should move second database settings to first settings class, so ConnectionStrings will return both connection strings.
public class DatabaseSettings : ILinqToDBSettings
{
public IEnumerable<IDataProviderSettings> DataProviders
{
get { yield break; }
}
public string DefaultConfiguration => "Oracle.Managed";
public string DefaultDataProvider => "Oracle.Managed";
private readonly IConnectionStringSettings[] _connectionStrings;
public DatabaseSettings(IConnectionStringSettings[] connectionStrings)
{
_connectionStrings = connectionStrings;
}
public IEnumerable<IConnectionStringSettings> ConnectionStrings => _connectionStrings;
}
public static class DatabaseSetup
{
// just call it on application startup
public static void Init()
{
// create connectionStrings collection with both connection strings from appsettings.json
DataConnection.DefaultSettings = new DatabaseSettings(connectionStrings);
}
}