Simple EF(Core) Change Tracker base audit log library.

Features:

• Give entity key property value as your configuration (KeyPropertyName)
• Can get Environment data (IncludeEnvironmentData)
  • Version
  • MachineName
  • UserName
  • OSVersion
  • UserDomainName
• Get Audit data for changed entities (AuditLogEntries)
  • KeyPropertyValue
  • EntityName
  • OldValue
  • NewValue
  • AuditLogOperationType
    • Added
    • Updated
    • Deleted
• Can exclude Entities from Audit flow (ExcludeEntities)
• Can mask Properties from Audit flow (MaskedProperties, masked with "******")

Atention:

• If you get data with "AsNoTracking()", you can not get property change data

Audit Data Configuration Object Structure:

    public class AuditConfiguration
    {
        public string KeyPropertyName { get; set; }
        public bool IncludeEnvironmentData { get; set; }
        public List<string> ExcludeEntities { get; set; } = new List<string>();
        public List<string> MaskedProperties { get; set; } = new List<string>();
    }

Audit Data Response Object Structure:

    public class AuditEntryResult
    {
        public EnvironmentData EnvironmentData { get; set; }
        public List<AuditLogEntry> AuditLogEntries { get; set; } = new List<AuditLogEntry>();
    }

    public class EnvironmentData
    {
        public string MachineName { get; set; }
        public string OSVersion { get; set; }
        public string UserDomainName { get; set; }
        public string UserName { get; set; }
        public string Version { get; set; }
    }

    public class AuditLogEntry
    {
        public string KeyPropertyValue { get; set; }
        public string EntityName { get; set; }
        public AuditLogOperationType AuditLogOperationType { get; set; }
        public string OldValue { get; set; }
        public string NewValue { get; set; }
    }
    
    public enum AuditLogOperationType
    {
        Added = 1,
        Updated = 2,
        Deleted = 3
    }

Usage(Code):

    var auditResponse =_context.ChangeTracker.GetAuditData(new AuditConfiguration
    {
        KeyPropertyName = "Id",
        IncludeEnvironmentData = true,
        MaskedProperties = new List<String>(){ "Password" }
    });
    

Release Notes

1.0.10

• "KeyPropertyValue" select null refernce bug fixed

1.0.9

• Ef Version updated to 7.0.9

1.0.8

• Newtonsoft SerializeObject reference loop options changed

1.0.7

• Ef Version updated to 7.0.5
• Newtonsoft.Json Version updated to 13.0.3
• Newtonsoft SerializeObject reference loop bug fixed

1.0.6

• Ef Version updated to 7.0.1
• Newtonsoft.Json Version updated to 13.0.2

1.0.5

• Ef Version updated to 6.0.8

1.0.4

• Target Framework changed as net6.0
• Ef Version updated to 6.0.1

1.0.3

• MaskedEntities name changed as MaskedProperties
• NewValue data not mask bug fixed

1.0.2

• GetAuditData extension moved under ChangeTracker
• AuditConfigurations name changed to AuditConfiguration
• Null check added for ChangeTracker and AuditConfiguration
• AuditLogEntry.NewValue null bug fixed

1.0.1

• GetAuditData extension moved under ChangeTracker

1.0.0

• Base release
• Support Ef Core 5.0.12