added Find tenant api

framework/src/Volo.Abp.AspNetCore.Mvc.UI.MultiTenancy/Pages/Abp/MultiTenancy/AbpTenantController.cs

@@ -0,0 +1,37 @@
+using System.Threading.Tasks;
+using Microsoft.AspNetCore.Mvc;
+using Volo.Abp.AspNetCore.Mvc;
+using Volo.Abp.MultiTenancy;
+
+namespace Pages.Abp.MultiTenancy
+{
+    [Route("api/abp/multi-tenancy")]
+    public class AbpTenantController : AbpController
+    {
+
+        protected ITenantStore TenantStore { get; }
+
+        public AbpTenantController(ITenantStore tenantStore)
+        {
+            TenantStore = tenantStore;
+        }
+
+        [HttpGet]
+        [Route("find-tenant/{name}")]
+        public async Task<FindTenantResult> FindTenantAsync(string name)
+        {
+            var tenant = await TenantStore.FindAsync(name);
+
+            if (tenant == null)
+            {
+                return new FindTenantResult{Success = false};
+            }
+
+            return new FindTenantResult
+            {
+                Success = true,
+                TenantId = tenant.Id
+            };
+        }
+    }
+}

framework/src/Volo.Abp.AspNetCore.Mvc.UI.MultiTenancy/Pages/Abp/MultiTenancy/FindTenantResult.cs

@@ -0,0 +1,11 @@
+using System;
+
+namespace Pages.Abp.MultiTenancy
+{
+    public class FindTenantResult
+    {
+        public bool Success { get; set; }
+
+        public Guid? TenantId { get; set; }
+    }
+}