Add template render.

framework/src/Volo.Abp.Emailing/Volo.Abp.Emailing.csproj

@@ -18,6 +18,10 @@
     <None Remove="Volo\Abp\Emailing\Templates\DefaultEmailTemplates\*\*.tpl" />
   </ItemGroup>
 
+  <ItemGroup>
+    <PackageReference Include="Scriban" Version="2.0.1" />
+  </ItemGroup>
+
   <ItemGroup>
     <ProjectReference Include="..\Volo.Abp.BackgroundJobs.Abstractions\Volo.Abp.BackgroundJobs.Abstractions.csproj" />
     <ProjectReference Include="..\Volo.Abp.Localization\Volo.Abp.Localization.csproj" />

framework/src/Volo.Abp.Emailing/Volo/Abp/Emailing/Templates/ITemplateRender.cs

@@ -0,0 +1,9 @@
+using System.Threading.Tasks;
+
+namespace Volo.Abp.Emailing.Templates
+{
+    public interface ITemplateRender
+    {
+        Task<string> RenderAsync(string template, object model = null);
+    }
+}

framework/src/Volo.Abp.Emailing/Volo/Abp/Emailing/Templates/TemplateRender.cs

@@ -0,0 +1,15 @@
+using System.Threading.Tasks;
+using Scriban;
+using Volo.Abp.DependencyInjection;
+
+namespace Volo.Abp.Emailing.Templates
+{
+    public class TemplateRender : ITemplateRender, ITransientDependency
+    {
+        public async Task<string> RenderAsync(string template, object model = null)
+        {
+            var scribanTemplate = Template.Parse(template);
+            return await scribanTemplate.RenderAsync(model);
+        }
+    }
+}

framework/test/Volo.Abp.Emailing.Tests/Volo/Abp/Emailing/EmailTemplateRender_Tests.cs

@@ -0,0 +1,64 @@
+using System.Collections.Generic;
+using System.Threading.Tasks;
+using Shouldly;
+using Volo.Abp.Emailing.Templates;
+using Xunit;
+
+namespace Volo.Abp.Emailing
+{
+    public class EmailTemplateRender_Tests : AbpIntegratedTest<AbpEmailingTestModule>
+    {
+        protected override void SetAbpApplicationCreationOptions(AbpApplicationCreationOptions options)
+        {
+            options.UseAutofac();
+        }
+
+        private readonly ITemplateRender _templateRender;
+
+        public EmailTemplateRender_Tests()
+        {
+            _templateRender = GetRequiredService<ITemplateRender>();
+        }
+
+        [Fact]
+        public async Task RenderAsync()
+        {
+            var template = "Hello {{email}} {{ for order in orders }}{{ order.id }}:{{ order.name }},{{ end }}";
+
+            var model = new ModelClass
+            {
+                Email = "john@abp.io",
+                Orders = new List<ModelClass.Order>
+                {
+                    new ModelClass.Order
+                    {
+                        Id = "1",
+                        Name = "iphone"
+                    },
+                    new ModelClass.Order
+                    {
+                        Id = "2",
+                        Name = "ipad"
+                    }
+                }
+            };
+
+            var result = await _templateRender.RenderAsync(template, model);
+            result.ShouldBe("Hello john@abp.io 1:iphone,2:ipad,");
+        }
+
+        public class ModelClass
+        {
+            public string Email { get; set; }
+
+            public List<Order> Orders { get; set; }
+
+            public class Order
+            {
+                public string Id { get; set; }
+
+                public string Name { get; set; }
+            }
+        }
+    }
+}