Add support for inline attachments for SendGrid

.github/workflows/main.yml

@@ -0,0 +1,90 @@
+name: Publish Packages
+
+on:
+  push:
+    branches: [ master ]
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+
+    steps:
+    - uses: actions/checkout@v2
+    - name: Setup .NET Core
+      uses: actions/setup-dotnet@v1
+      with:
+        dotnet-version: 3.1.101
+    - name: Install dependencies
+      run: dotnet restore
+    - name: Build
+      run: dotnet build --configuration Release --no-restore
+
+    - name: Publish FluentEmail.Core
+      uses: brandedoutcast/[email protected]
+      with:
+          PROJECT_FILE_PATH: src/FluentEmail.Core/FluentEmail.Core.csproj
+          VERSION_FILE_PATH: src/Directory.Build.props
+          NUGET_KEY: ${{secrets.NUGET_API_KEY}}
+          NUGET_SOURCE: https://api.nuget.org
+          INCLUDE_SYMBOLS: true
+    - name: Publish FluentEmail.Smtp
+      uses: brandedoutcast/[email protected]
+      with:
+          PROJECT_FILE_PATH: src/Senders/FluentEmail.Smtp/FluentEmail.Smtp.csproj
+          VERSION_FILE_PATH: src/Directory.Build.props
+          NUGET_KEY: ${{secrets.NUGET_API_KEY}}
+          NUGET_SOURCE: https://api.nuget.org
+          INCLUDE_SYMBOLS: true
+    - name: Publish FluentEmail.Sendgrid
+      uses: brandedoutcast/[email protected]
+      with:
+          PROJECT_FILE_PATH: src/Senders/FluentEmail.SendGrid/FluentEmail.SendGrid.csproj
+          VERSION_FILE_PATH: src/Directory.Build.props
+          NUGET_KEY: ${{secrets.NUGET_API_KEY}}
+          NUGET_SOURCE: https://api.nuget.org
+          INCLUDE_SYMBOLS: true
+    #- name: Publish FluentEmail.MailTrap
+    #  uses: brandedoutcast/[email protected]
+    #  with:
+    #      PROJECT_FILE_PATH: src/Senders/FluentEmail.Mailtrap/FluentEmail.Mailtrap.csproj
+    #      NUGET_KEY: ${{secrets.NUGET_API_KEY}}
+    #      NUGET_SOURCE: https://api.nuget.org
+    - name: Publish FluentEmail.MailKit
+      uses: brandedoutcast/[email protected]
+      with:
+          PROJECT_FILE_PATH: src/Senders/FluentEmail.MailKit/FluentEmail.MailKit.csproj
+          VERSION_FILE_PATH: src/Directory.Build.props
+          NUGET_KEY: ${{secrets.NUGET_API_KEY}}
+          NUGET_SOURCE: https://api.nuget.org
+          INCLUDE_SYMBOLS: true
+    - name: Publish FluentEmail.Mailgun
+      uses: brandedoutcast/[email protected]
+      with:
+          PROJECT_FILE_PATH: src/Senders/FluentEmail.Mailgun/FluentEmail.Mailgun.csproj
+          VERSION_FILE_PATH: src/Directory.Build.props
+          NUGET_KEY: ${{secrets.NUGET_API_KEY}}
+          NUGET_SOURCE: https://api.nuget.org
+          INCLUDE_SYMBOLS: true
+    - name: Publish FluentEmail.Razor
+      uses: brandedoutcast/[email protected]
+      with:
+          PROJECT_FILE_PATH: src/Renderers/FluentEmail.Razor/FluentEmail.Razor.csproj
+          VERSION_FILE_PATH: src/Directory.Build.props
+          NUGET_KEY: ${{secrets.NUGET_API_KEY}}
+          NUGET_SOURCE: https://api.nuget.org
+          INCLUDE_SYMBOLS: true
+    - name: Publish FluentEmail.Liquid
+      uses: brandedoutcast/[email protected]
+      with:
+          PROJECT_FILE_PATH: src/Renderers/FluentEmail.Liquid/FluentEmail.Liquid.csproj
+          VERSION_FILE_PATH: src/Directory.Build.props
+          NUGET_KEY: ${{secrets.NUGET_API_KEY}}
+          NUGET_SOURCE: https://api.nuget.org
+          INCLUDE_SYMBOLS: true
+    # This is currently maintained separately
+    #- name: Publish FluentEmail.Graph
+    #  uses: brandedoutcast/[email protected]
+    #  with:
+    #      PROJECT_FILE_PATH: src/Senders/FluentEmail.Graph/FluentEmail.Graph.csproj
+    #      NUGET_KEY: ${{secrets.NUGET_API_KEY}}
+    #      NUGET_SOURCE: https://api.nuget.org

src/Senders/FluentEmail.SendGrid/SendGridSender.cs

@@ -181,7 +181,9 @@ private async Task<SendResponse> SendViaSendGrid(SendGridMessage mailMessage, Ca
         {
             Content = await GetAttachmentBase64String(attachment.Data),
             Filename = attachment.Filename,
-            Type = attachment.ContentType
+            Type = attachment.ContentType,
+            ContentId = attachment.ContentId,
+            Disposition = attachment.IsInline ? "inline" : "attachment"
         };
 
         private async Task<string> GetAttachmentBase64String(Stream stream)

test/FluentEmail.Core.Tests/SendGridSenderTests.cs

@@ -164,5 +164,38 @@ public async Task CanSendLowPriorityEmail()
 
             Assert.IsTrue(response.Successful);
         }
+
+        [Test, Ignore("No sendgrid credentials")]
+        public async Task CanSendEmailWithInlineAttachments()
+        {
+            // Arrange
+            const string subject = "SendMail With Inline Attachments Test";
+            const string body = "This email is testing the inline attachment functionality of SendGrid Sender.";
+
+            using (var stream = File.OpenRead($"{Directory.GetCurrentDirectory()}/logotest.png"))
+            {
+                var attachment = new Attachment
+                {
+                    Data = stream,
+                    ContentType = "image/png",
+                    Filename = "logotest.png",
+                    IsInline = true,
+                    ContentId = "logotest_id"
+                };
+
+                var email = Email
+                    .From(fromEmail, fromName)
+                    .To(toEmail, toName)
+                    .Subject(subject)
+                    .Body(body)
+                    .Attach(attachment);
+
+                // Act
+                var response = await email.SendAsync();
+
+                // Assert
+                Assert.IsTrue(response.Successful);
+            }
+        }
     }
 }