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Fix n8n Cloud compatibility issues#19

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jaseemjaskp merged 10 commits intomainfrom
UN-2894-n-8-n-review-changes
Nov 21, 2025
Merged

Fix n8n Cloud compatibility issues#19
jaseemjaskp merged 10 commits intomainfrom
UN-2894-n-8-n-review-changes

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@Deepak-Kesavan
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@Deepak-Kesavan Deepak-Kesavan commented Nov 20, 2025

Summary

This PR resolves n8n Cloud compatibility issues across all Unstract nodes based on review feedback.

Changes

Unstract node

  • ✅ Add HTTP 422 handling for status polling (API uses 422 to indicate "still executing")
  • ✅ Use helpers.httpRequest() for status checks with manual Authorization header
  • ✅ Add comprehensive logging with request/response details
  • ✅ Properly handle already-parsed JSON responses

UnstractHitlPush node

  • ✅ Implement manual multipart/form-data construction (n8n Cloud requirement)
  • ✅ Add HTTP 422 handling for status polling
  • ✅ Fix response parsing to handle already-parsed JSON
  • ✅ Add comprehensive logging for debugging
  • ✅ Include hitl_queue_name in multipart request

LLMWhisperer node

  • ✅ Fix response parsing issues (httpRequestWithAuthentication returns parsed JSON, not strings)
  • ✅ Remove incorrect HTTP status check that was comparing job status to HTTP status code
  • ✅ Add proper validation for required whisper_hash field
  • ✅ Add comprehensive logging throughout the workflow

Credentials

  • ✅ Remove trailing whitespace for code quality

Test Plan

  • Built project successfully
  • Tested Unstract node with HTTP 422 status polling
  • Tested UnstractHitlPush node with manual multipart construction
  • Tested LLMWhisperer node with corrected response parsing
  • All nodes execute without errors

Notes

All nodes now comply with n8n Cloud requirements:

  1. Proper response parsing from httpRequestWithAuthentication
  2. Status polling with appropriate error handling (HTTP 422 support)
  3. Manual multipart form construction where required
  4. No external dependencies

Ready for n8n Cloud approval.

- Remove dependency overrides from package.json
- Remove prepublishOnly script, add validate script instead
- Add pairedItem linkage to all returnData.push() calls
- Replace helpers.request() with helpers.httpRequestWithAuthentication()
- Update LLMWhispererApi credentials to use unstract-key header
- Add build:dev script for fast development builds
- Update workflows to use validate script for comprehensive checks
- Update package-lock.json

All blocking issues from n8n cloud review have been addressed.
- Add dedicated 'audit' script for security checks with high severity threshold
- Remove audit from 'validate' script to allow independent execution
- Update package-lock.json to reflect current dependency tree
- Add npm audit step after validation
- Set continue-on-error to true for visibility without blocking PRs
- Audit failures will be visible in CI but won't fail the workflow
- Remove test property from all three credential classes:
  - LLMWhispererApi
  - UnstractApi
  - UnstractHITLApi
- Remove unused ICredentialTestRequest import
- httpbin tests did not actually validate credentials (would pass with any value)
- Following n8n recommendation to remove rather than use fake validation endpoints

Addresses n8n community node review feedback.
- Fix UnstractApi to use {{$credentials.apiKey}} instead of literal 'apiKey'
- Fix UnstractHITLApi to use {{$credentials.HITLKey}} instead of literal 'apiKey'
- Previous implementation sent literal string "Bearer apiKey" instead of actual token
- This bug was introduced in PR #17 along with httpbin tests

These authenticate blocks are required for httpRequestWithAuthentication to work correctly.
- Add explicit Authorization header to Unstract node POST request
- Add explicit Authorization header to status polling GET requests
- Extract apiKey from credentials to use in headers
- Works around known n8n bug where httpRequestWithAuthentication doesn't
  properly add auth headers when formData is present (Issue #18271)
- Still uses httpRequestWithAuthentication to satisfy n8n review requirements
- Restores working pattern from commit 845c15c while keeping httpRequestWithAuthentication

This fixes 'Bad request' errors caused by missing Authorization headers.
This commit addresses multiple issues found during n8n Cloud review:

**Unstract node:**
- Add HTTP 422 handling for status polling (API uses 422 to indicate "still executing")
- Use helpers.httpRequest() for status checks with manual Authorization header
- Add comprehensive logging with request/response details

**UnstractHitlPush node:**
- Implement manual multipart/form-data construction (n8n Cloud requirement)
- Add HTTP 422 handling for status polling
- Fix response parsing to handle already-parsed JSON from httpRequestWithAuthentication
- Add comprehensive logging for debugging

**LLMWhisperer node:**
- Fix response parsing issues (httpRequestWithAuthentication returns parsed JSON, not strings)
- Remove incorrect HTTP status check that was comparing job status to HTTP status code
- Add proper validation for required whisper_hash field
- Add comprehensive logging throughout the workflow

**Credentials:**
- Remove trailing whitespace for code quality

All nodes now properly handle:
1. Response parsing from httpRequestWithAuthentication
2. Status polling with appropriate error handling
3. Manual multipart form construction where required for n8n Cloud
Resolved conflicts by keeping our improved implementations which include:
- Manual multipart/form-data construction for n8n Cloud compatibility
- HTTP 422 handling for async status polling
- Improved response parsing for httpRequestWithAuthentication
- Enhanced logging with prefixed messages

Conflicts resolved in:
- nodes/LlmWhisperer/LlmWhisperer.node.ts
- nodes/Unstract/Unstract.node.ts
- nodes/UnstractHitlPush/UnstractHitlPush.node.ts

Kept our version (--ours) as it contains the complete set of n8n Cloud fixes.
Removed debug logging statements that were added for troubleshooting:
- LlmWhisperer: removed 6 logger statements
- Unstract: removed 15 logger statements
- UnstractHitlPush: removed 10 logger statements

All nodes now have clean code without debug-level logging.
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LGTM

@jaseemjaskp jaseemjaskp merged commit 5e59a2e into main Nov 21, 2025
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@jaseemjaskp jaseemjaskp deleted the UN-2894-n-8-n-review-changes branch November 21, 2025 02:41
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