merchant onboarding process completed

Singer_Hexdive/Interfaces/ServiceInterfaces/BaseMerchantService.cs

@@ -0,0 +1,25 @@
+using System.Text.Json;
+
+namespace Singer_Hexdive.Interfaces.ServiceInterfaces
+{
+    public abstract class BaseMerchantService
+    {
+        protected Dictionary<string, JsonElement> DeserializePayload(object payload)
+        {
+            if (payload is null)
+                throw new ArgumentNullException(nameof(payload));
+
+            var json = JsonSerializer.Serialize(payload);
+            return JsonSerializer.Deserialize<Dictionary<string, JsonElement>>(json)
+                   ?? throw new InvalidOperationException("Failed to deserialize payload.");
+        }
+
+        public abstract Task<object> GetM_PersonalDetails(object payload);
+        public abstract Task<object> PostM_PersonalDetails(object payload);
+        public abstract Task<object> GetM_BusinessDetails(object payload);
+        public abstract Task<object> PostM_BusinessDetails(object payload);
+        public abstract Task<object> GetM_BankDetails(object payload);
+        public abstract Task<object> PostM_BankDetails(object payload);
+
+    }
+}