fix: resolve null body content issue

- Ensure bodyStructure is always fetched when enhanced fields are enabled
- Add comprehensive debug logging for content extraction troubleshooting
- Fix issue where email body content was returning null
- Version bump to 2.11.9

Author: Derek Zen

CHANGELOG.md

@@ -1,3 +1,11 @@
+## [2.11.9](https://github.com/callzhang/n8n-nodes-imap/compare/v2.11.8...v2.11.9) (2025-01-XX)
+
+### Bug Fixes
+
+* **Body Content Extraction**: Fixed issue where email body content was returning null when "Include Body" is enabled
+* **Body Structure Fetching**: Ensure bodyStructure is always fetched when enhanced fields are enabled
+* **Debug Logging**: Added comprehensive debug logging to help troubleshoot content extraction issues
+
 ## [2.11.8](https://github.com/callzhang/n8n-nodes-imap/compare/v2.11.7...v2.11.8) (2025-01-XX)
 
 ### Improvements

nodes/Imap/operations/email/functions/EmailGetList.ts

@@ -262,6 +262,14 @@ export const getEmailsListOperation: IResourceOperationDef = {
     context.logger?.debug(`Search object: ${JSON.stringify(searchObject)}`);
     context.logger?.debug(`Fetch query: ${JSON.stringify(fetchQuery)}`);
 
+    // get enhanced fields parameter
+    const enhancedFields = context.getNodeParameter('enhancedFields', itemIndex) as boolean;
+    
+    // if enhanced fields are enabled, we need bodyStructure to extract content
+    if (enhancedFields) {
+      fetchQuery.bodyStructure = true;
+    }
+
     // get limit parameter
     const limit = context.getNodeParameter('limit', itemIndex) as number;
 
@@ -281,9 +289,6 @@ export const getEmailsListOperation: IResourceOperationDef = {
     }
     context.logger?.info(`Found ${emailsList.length} emails`);
 
-    // get enhanced fields parameter
-    const enhancedFields = context.getNodeParameter('enhancedFields', itemIndex) as boolean;
-
     // process the emails
     for (const email of emailsList) {
       context.logger?.info(`  ${email.uid}`);
@@ -334,15 +339,19 @@ export const getEmailsListOperation: IResourceOperationDef = {
       var textPartId = null;
       var htmlPartId = null;
       var attachmentsInfo = [];
+      
+      context.logger?.debug(`Analyzing body structure for email ${email.uid}: ${analyzeBodyStructure}`);
 
 
       if (analyzeBodyStructure) {
         // workaround: dispositionParameters is an object, but it is not typed as such
         const bodyStructure = email.bodyStructure as unknown as any;
 
         if (bodyStructure) {
+          context.logger?.debug(`Body structure found for email ${email.uid}: ${JSON.stringify(bodyStructure)}`);
 
           const partsInfo = getEmailPartsInfoRecursive(context, bodyStructure);
+          context.logger?.debug(`Parts info for email ${email.uid}: ${JSON.stringify(partsInfo)}`);
 
           // filter attachments and text/html parts
           for (const partInfo of partsInfo) {
@@ -360,12 +369,16 @@ export const getEmailsListOperation: IResourceOperationDef = {
               // in that case, ImapFlow uses "TEXT" as partId to download the only part
               if (partInfo.type === 'text/plain') {
                 textPartId = partInfo.partId || "TEXT";
+                context.logger?.debug(`Found text part for email ${email.uid}: ${textPartId}`);
               }
               if (partInfo.type === 'text/html') {
                 htmlPartId = partInfo.partId || "TEXT";
+                context.logger?.debug(`Found HTML part for email ${email.uid}: ${htmlPartId}`);
               }
             }
           }
+        } else {
+          context.logger?.warn(`No body structure found for email ${email.uid}`);
         }
       }
 

package.json

@@ -1,6 +1,6 @@
 {
   "name": "n8n-nodes-imap-enhanced",
-  "version": "2.11.8",
+  "version": "2.11.9",
   "description": "Enhanced IMAP node with custom labels support, limit parameters, and structured email fields for n8n workflows.",
   "keywords": [
     "n8n-community-node-package"