fix: lowercase null check for track event adobe analytics

src/v0/destinations/adobe_analytics/transform.js

@@ -18,6 +18,7 @@ const {
   getIntegrationsObj,
   removeUndefinedAndNullValues,
   simpleProcessRouterDest,
+  validateEventAndLowerCaseConversion,
 } = require('../../util');
 
 const {
@@ -307,7 +308,7 @@ const processTrackEvent = (message, adobeEventName, destinationConfig, extras =
     destinationConfig;
   const { event: rawMessageEvent, properties } = message;
   const { overrideEventString, overrideProductString } = properties;
-  const event = rawMessageEvent.toLowerCase();
+  const event = validateEventAndLowerCaseConversion(rawMessageEvent, true, true);
   const adobeEventArr = adobeEventName ? adobeEventName.split(',') : [];
   // adobeEventArr is an array of events which is defined as
   // ["eventName", "mapped Adobe Event=mapped merchproperty's value", "mapped Adobe Event=mapped merchproperty's value", . . .]

src/v0/util/index.js

@@ -2201,6 +2201,25 @@ const combineBatchRequestsWithSameJobIds = (inputBatches) => {
   return combineBatches(combineBatches(inputBatches));
 };
 
+/**
+ * This function validates the event and return it as string.
+ * @param {*} isMandatory The event is a required field.
+ * @param {*} converToLowercase The event should be converted to lower-case.
+ * @returns {string} Event name converted to string.
+ */
+const validateEventAndLowerCaseConversion = (event, isMandatory, converToLowercase) => {
+  if (!event && isMandatory) {
+    throw new InstrumentationError('Event is a required field');
+  }
+
+  if (isMandatory && (!event || typeof event !== 'string')) {
+    throw new InstrumentationError('Event is a required field and should be a string');
+  }
+
+ return converToLowercase ? event.toString().toLowerCase() : event.toString();
+
+};
+
 // ========================================================================
 // EXPORTS
 // ========================================================================
@@ -2317,4 +2336,5 @@ module.exports = {
   findExistingBatch,
   removeDuplicateMetadata,
   combineBatchRequestsWithSameJobIds,
+  validateEventAndLowerCaseConversion
 };