Currency creation and minting with basis of transactions

src/IO.Swagger/Models/db/Transaction.cs

@@ -0,0 +1,28 @@
+using Microsoft.EntityFrameworkCore;
+using Microsoft.VisualBasic;
+using System;
+using System.ComponentModel.DataAnnotations;
+
+namespace IO.Swagger.Models.db
+{
+    public class Transaction
+    {
+        public int TransactionId { get; set; }
+        public int FromUserId { get; set; }
+        public User FromUser { get; set; }
+        public int ToUserId { get; set; }
+        public User ToUser { get; set; }
+
+        [Range(0.01, float.MaxValue)]
+        public float Amount { get; set; }
+
+        [Required]
+        [StringLength(32, MinimumLength = 2)]
+        public string Memo { get; set; }
+        
+        public Currency Currency { get; set; }
+        public int CurrencyId { get; set; }
+
+        public DateTime TransactionTime { get; set; } = DateTime.UtcNow;
+    }
+}