comments

USE_CASES.md

@@ -920,6 +920,30 @@ var client = new SendGridClient(options);
 
 ```
 
+The SendGridClientOptions object can also be used to set the region to "eu", which will send the 
+request to https://api.eu.sendgrid.com/. By default it is set to https://api.sendgrid.com/, e.g.
+
+```csharp
+
+var options = new SendGridClientOptions
+{
+ ApiKey = Environment.GetEnvironmentVariable("NAME_OF_THE_ENVIRONMENT_VARIABLE_FOR_YOUR_SENDGRID_KEY"),
+ ReliabilitySettings = new ReliabilitySettings(2, TimeSpan.FromSeconds(1), TimeSpan.FromSeconds(10), TimeSpan.FromSeconds(3)),
+ Host = "Your-Host",
+ UrlPath = "Url-Path",
+ Version = "3",
+ RequestHeaders = new Dictionary<string, string>() {{"header-key", "header-value"}}
+};
+options.SetDataResidency("eu");
+var client = new SendGridClient(options);
+
+OR
+
+options.SetDataResidency("global");
+var client = new SendGridClient(options);
+
+```
+
 <a name="domain-authentication"></a>
 # How to Setup a Domain Authentication
 

src/SendGrid/SendGridClientOptions.cs

@@ -48,6 +48,9 @@ public string ApiKey
  /// Sets the data residency for the SendGrid client.
  /// </summary>
  /// <param name="region">The desired data residency region ("global" or "eu").</param>
+ /// Global is the default residency (or region)
+ /// Global region means the message will be sent through https://api.sendgrid.com
+ /// EU region means the message will be sent through https://api.eu.sendgrid.com
  /// <returns>The updated SendGridClientOptions instance.</returns>
  public SendGridClientOptions SetDataResidency(string region)
  {