docs: update file upload utility link

[mendonk]

The file upload utility is now hosted at https://langflow-file-upload-examples.21cgwws14kdz.us-east.codeengine.appdomain.cloud/.

Summary by CodeRabbit

• Documentation
  • Updated external resource links in tutorial documentation to reference new hosted service endpoints.

[coderabbitai]

Walkthrough

Two documentation files have their help reference links updated from onrender.com domain to codeengine.cloud domain for file upload API guidance. No structural or functional changes are present.

Changes

Cohort / File(s)	Change Summary
Documentation URL Updates docs/docs/Tutorials/chat-with-files.mdx, docs/docs/Tutorials/chat-with-rag.mdx	Updated Langflow API help links from https://langflow-file-upload-examples.onrender.com/ to https://langflow-file-upload-examples.21cgwws14kdz.us-east.codeengine.appdomain.cloud/ for file upload request construction guidance

Estimated code review effort

🎯 1 (Trivial) | ⏱️ ~3 minutes

• Simple URL replacement across documentation files
• No logic changes or functional impact
• Straightforward link migration verification needed

Suggested labels

documentation, lgtm

Suggested reviewers

• aimurphy

Pre-merge checks and finishing touches

❌ Failed checks (3 inconclusive)

Check name	Status	Explanation	Resolution
Test Quality And Coverage	❓ Inconclusive	This PR contains only documentation URL updates with no functional code changes, making traditional test evaluation criteria inapplicable.	Verify that the new URLs are accessible and functional using automated link validation tools before merging.
Test File Naming And Structure	❓ Inconclusive	PR contains only documentation changes with no test files added, modified, or removed.	This check is not applicable to documentation-only PRs. Reapply if PR includes actual test file changes.
Excessive Mock Usage Warning	❓ Inconclusive	The 'Excessive Mock Usage Warning' check is inapplicable to this PR as it contains only documentation updates with no test files or mock objects.	Apply this check only when test files are modified; use documentation-specific checks for markdown-only PRs instead.

✅ Passed checks (4 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title accurately summarizes the main change: updating documentation links for the file upload utility from onrender domain to codeengine domain.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Test Coverage For New Implementations	✅ Passed	PR contains only documentation URL updates in markdown files; no code changes, new features, or bug fixes are present, so test files are not required.

✨ Finishing touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Post copyable unit tests in a comment
• Commit unit tests in branch docs-update-file-utility-link

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📜 Recent review details

Configuration used: Path: .coderabbit.yaml

Review profile: CHILL

Plan: Pro

📥 Commits

Reviewing files that changed from the base of the PR and between b74e9ee and f6dbbaf.

📒 Files selected for processing (2)

• docs/docs/Tutorials/chat-with-files.mdx (1 hunks)
• docs/docs/Tutorials/chat-with-rag.mdx (1 hunks)

🧰 Additional context used

📓 Path-based instructions (2)

docs/**/*.{md,mdx}

📄 CodeRabbit inference engine (.cursor/rules/docs_development.mdc)

docs/**/*.{md,mdx}: All Markdown/MDX pages must start with front matter including at least title and description; include sidebar_position for docs pages when applicable
Code blocks must specify a language and may include a title (```lang title="…")
Use sentence case for headings and keep paragraphs short and scannable
Write in second person, present tense, with a professional but approachable tone
Use inline code with backticks for code terms; use bold for UI elements and italics for emphasis; keep lists in parallel structure
Ensure internal links are functional and navigation works (update cross-references as needed)
Verify all code examples in docs and blog actually run as shown
Use correct terminology capitalization: Langflow, Component, Flow, API, JSON
Reference images with absolute paths under /img/... and provide descriptive alt text

Files:

• docs/docs/Tutorials/chat-with-rag.mdx
• docs/docs/Tutorials/chat-with-files.mdx

docs/docs/**/*.{md,mdx}

📄 CodeRabbit inference engine (.cursor/rules/docs_development.mdc)

Use Docusaurus admonitions (:::+tip|warning|danger) instead of custom callouts in docs pages

Files:

• docs/docs/Tutorials/chat-with-rag.mdx
• docs/docs/Tutorials/chat-with-files.mdx

🧠 Learnings (2)

📚 Learning: 2025-09-30T00:09:51.631Z

Learnt from: CR
Repo: langflow-ai/langflow PR: 0
File: .cursor/rules/docs_development.mdc:0-0
Timestamp: 2025-09-30T00:09:51.631Z
Learning: Applies to docs/**/*.{md,mdx} : Use correct terminology capitalization: Langflow, Component, Flow, API, JSON

Applied to files:

• docs/docs/Tutorials/chat-with-rag.mdx

📚 Learning: 2025-07-11T21:32:57.160Z

Learnt from: namastex888
Repo: langflow-ai/langflow PR: 9018
File: src/frontend/src/modals/apiModal/utils/get-curl-code.tsx:139-184
Timestamp: 2025-07-11T21:32:57.160Z
Learning: In TypeScript/JavaScript cURL code generation for Langflow, PowerShell commands must use backticks (`) for line continuation and follow the pattern: `curl --request POST \` followed by `--url`, `--header` flags on separate lines. Unix commands use backslashes (\) for line continuation. File upload commands should maintain platform-specific formatting just like other cURL commands in the codebase.

Applied to files:

• docs/docs/Tutorials/chat-with-rag.mdx

⏰ Context from checks skipped due to timeout of 90000ms. You can increase the timeout in your CodeRabbit configuration to a maximum of 15 minutes (900000ms). (2)

• GitHub Check: Test Docs Build / Test Docs Build
• GitHub Check: build-and-deploy

🔇 Additional comments (2)

docs/docs/Tutorials/chat-with-rag.mdx (1)

76-76: URL updated consistently with related tutorial file.

The link has been updated to match the corresponding change in chat-with-files.mdx, maintaining consistency across documentation. Both files now reference the same codeengine.cloud utility URL.

The verification of URL accessibility performed for chat-with-files.mdx applies to this file as well, since both reference the identical new URL.

docs/docs/Tutorials/chat-with-files.mdx (1)

73-73: URL migration verified as complete and functional.

The new codeengine.cloud URL is accessible (HTTP 200) and properly deployed. The old onrender.com domain is no longer available (HTTP 404), and no remaining references to the old domain exist in documentation. The change is ready for merge.

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