Feature alerting mail support html format #586

.github/workflows/dashboards-notifications-test-and-build-workflow.yml

@@ -153,7 +153,7 @@ jobs:
         uses: actions/cache@v2
         with:
           path: ${{ matrix.cypress_cache_folder }}
-          key: cypress-cache-v2-${{ runner.os }}-${{ hashFiles('**/package.json') }}
+          key: cypress-cache-v2-${{ runner.os }}-${{ hashFiles('OpenSearch-Dashboards/plugins/dashboards-notifications/package.json') }}
 
       - name: Reset npm's script shell
         if: ${{ matrix.os == 'windows-latest' }}

notifications/core-spi/src/main/kotlin/org/opensearch/notifications/spi/model/MessageContent.kt

@@ -23,10 +23,16 @@ class MessageContent(
 
     init {
         require(!Strings.isNullOrEmpty(title)) { "title is null or empty" }
-        require(!Strings.isNullOrEmpty(textDescription)) { "text message part is null or empty" }
+        require(!Strings.isNullOrEmpty(textDescription) || !Strings.isNullOrEmpty(htmlDescription)) {
+            "text message part and html message part are both null or empty"
+        }
     }
 
     fun buildMessageWithTitle(): String {
-        return "$title\n\n$textDescription"
+        return if (htmlDescription != null) {
+            htmlDescription
+        } else {
+            "$title\n\n$textDescription"
+        }
     }
 }

notifications/core-spi/src/main/kotlin/org/opensearch/notifications/spi/model/destination/DestinationType.kt

@@ -8,5 +8,5 @@ package org.opensearch.notifications.spi.model.destination
  * Supported notification destinations
  */
 enum class DestinationType {
-    CHIME, SLACK, CUSTOM_WEBHOOK, SMTP, SES, SNS
+    CHIME, SLACK, CUSTOM_WEBHOOK, SMTP, SES, SNS, TELEGRAM
 }