barryib commented on code in PR #27432:
URL: https://github.com/apache/flink/pull/27432#discussion_r2716263769
##########
flink-metrics/flink-metrics-datadog/src/main/java/org/apache/flink/metrics/datadog/DatadogHttpReporterFactory.java:
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@@ -65,4 +66,25 @@ public MetricReporter createMetricReporter(Properties
config) {
tags,
useLogicalIdentifier);
}
+
+ /**
+ * Retrieves the Datadog API key from configuration or environment
variable.
+ *
+ * <p>The API key is resolved in the following order:
+ *
+ * <ol>
+ * <li>Configuration property "apikey"
+ * <li>Environment variable "DATADOG_API_KEY"
+ * </ol>
+ *
+ * @param config the configuration properties
+ * @return the Datadog API key, or null if not found in either location
+ */
+ private String getApiKey(Properties config) {
Review Comment:
I did apply you reco.
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