Provides ability to use different ctors for AmazonCloudWatchClient

src/HealthChecks.Publisher.CloudWatch/CloudWatchOptions.cs

@@ -1,4 +1,5 @@
 using Amazon;
+using Amazon.CloudWatch;
 
 namespace HealthChecks.Publisher.CloudWatch;
 
@@ -19,4 +20,14 @@ public class CloudWatchOptions
     /// The namespace for the metric data.
     /// </summary>
     public string Namespace { get; set; } = "Xabaril/AspNetCoreDiagnosticsHealthChecks";
+
+    /// <summary>
+    /// Delegate to build <see cref="AmazonCloudWatchClient"/> used by AWS CloudWatch publisher.
+    /// </summary>
+    public Func<CloudWatchOptions, AmazonCloudWatchClient> ClientBuilder { get; set; } = options =>
+    {
+        return options.AwsAccessKeyId is null && options.AwsSecretAccessKey is null && options.Region is null
+            ? new AmazonCloudWatchClient()
+            : new AmazonCloudWatchClient(options.AwsAccessKeyId, options.AwsSecretAccessKey, options.Region);
+    };
 }

src/HealthChecks.Publisher.CloudWatch/CloudWatchPublisher.cs

@@ -18,7 +18,7 @@ public CloudWatchPublisher(CloudWatchOptions options)
     {
         _options = options ?? throw new ArgumentNullException(nameof(options));
 
-        _amazonCloudWatchClient = new AmazonCloudWatchClient(options.AwsAccessKeyId, options.AwsSecretAccessKey, options.Region);
+        _amazonCloudWatchClient = options.ClientBuilder(options);
 
         string serviceCheckName = options.ServiceCheckName ?? Assembly.GetEntryAssembly()?.GetName()?.Name ?? "undefined";
 

src/HealthChecks.Publisher.CloudWatch/DependencyInjection/CloudWatchHealthCheckBuilderExtensions.cs

@@ -9,7 +9,7 @@ public static class CloudWatchHealthCheckBuilderExtensions
     /// Add a health check publisher for AWS CloudWatch.
     /// </summary>
     /// <remarks>
-    /// For each <see cref="HealthReport"/> published a new metric is sent to AWS CloudWatch indicating 
+    /// For each <see cref="HealthReport"/> published a new metric is sent to AWS CloudWatch indicating
     /// the health check status (2 - Healthy, 1 - Degraded, 0 - Unhealthy)
     /// </remarks>
     /// <param name="builder">The <see cref="IHealthChecksBuilder"/>.</param>

test/HealthChecks.Publisher.CloudWatch.Tests/HealthChecks.Publisher.CloudWatch.approved.txt

@@ -5,6 +5,7 @@ namespace HealthChecks.Publisher.CloudWatch
         public CloudWatchOptions() { }
         public string? AwsAccessKeyId { get; set; }
         public string? AwsSecretAccessKey { get; set; }
+        public System.Func<HealthChecks.Publisher.CloudWatch.CloudWatchOptions, Amazon.CloudWatch.AmazonCloudWatchClient> ClientBuilder { get; set; }
         public string Namespace { get; set; }
         public Amazon.RegionEndpoint? Region { get; set; }
         public string? ServiceCheckName { get; set; }