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[PR #26842] fix: files/support-type JSON serialization error #31584

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opened 2026-02-21 20:49:44 -05:00 by yindo · 0 comments
yindo commented 2026-02-21 20:49:44 -05:00
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Original Pull Request: https://github.com/langgenius/dify/pull/26842

State: closed
Merged: Yes

Important

  1. Make sure you have read our contribution guidelines
  2. Ensure there is an associated issue and you have been assigned to it
  3. Use the correct syntax to link this PR: Fixes #<issue number>.

Summary

close https://github.com/langgenius/dify/issues/26834

Fix JSON serialization error in /console/api/files/support-type endpoint that was causing 500 Internal Server Error.

error:

2025-10-13 11:47:48,18 ERROR [app.py:875] 2aa3e96db4 Exception on /console/api/files/support-type [GET]
Traceback (most recent call last):
  File "/Users/yanhe/project/opensource/dify/api/.venv/lib/python3.12/site-packages/flask/app.py", line 917, in full_dispatch_request
    rv = self.dispatch_request()
         ^^^^^^^^^^^^^^^^^^^^^^^
  File "/Users/yanhe/project/opensource/dify/api/.venv/lib/python3.12/site-packages/flask/app.py", line 902, in dispatch_request
    return self.ensure_sync(self.view_functions[rule.endpoint])(**view_args)  # type: ignore[no-any-return]
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/Users/yanhe/project/opensource/dify/api/.venv/lib/python3.12/site-packages/flask_restx/api.py", line 406, in wrapper
    return self.make_response(data, code, headers=headers)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/Users/yanhe/project/opensource/dify/api/.venv/lib/python3.12/site-packages/flask_restx/api.py", line 430, in make_response
    resp = self.representations[mediatype](data, *args, **kwargs)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/Users/yanhe/project/opensource/dify/api/.venv/lib/python3.12/site-packages/flask_restx/representations.py", line 22, in output_json
    dumped = dumps(data, **settings) + "\n"
             ^^^^^^^^^^^^^^^^^^^^^^^
TypeError: {'vtt', 'MD', 'XLSX', 'TXT', 'MDX', 'mdx', 'PDF', 'txt', 'CSV', 'VTT', 'DOCX', 'XLS', 'md', 'markdown', 'xls', 'docx', 'htm', 'PROPERTIES', 'HTML', 'html', 'MARKDOWN', 'HTM', 'xlsx', 'csv', 'pdf', 'properties'} is not JSON serializable
2025-10-13 11:47:48,19 INFO [_internal.py:97]  127.0.0.1 - - [13/Oct/2025 11:47:48] "GET /console/api/files/support-type HTTP/1.1" 500 -

Screenshots

Before After
image image

Checklist

  • This change requires a documentation update, included: Dify Document
  • I understand that this PR may be closed in case there was no previous discussion or issues. (This doesn't apply to typos!)
  • I've added a test for each change that was introduced, and I tried as much as possible to make a single atomic change.
  • I've updated the documentation accordingly.
  • I ran dev/reformat(backend) and cd web && npx lint-staged(frontend) to appease the lint gods
**Original Pull Request:** https://github.com/langgenius/dify/pull/26842 **State:** closed **Merged:** Yes --- > [!IMPORTANT] > > 1. Make sure you have read our [contribution guidelines](https://github.com/langgenius/dify/blob/main/CONTRIBUTING.md) > 1. Ensure there is an associated issue and you have been assigned to it > 1. Use the correct syntax to link this PR: `Fixes #<issue number>`. ## Summary <!-- Please include a summary of the change and which issue is fixed. Please also include relevant motivation and context. List any dependencies that are required for this change. --> close https://github.com/langgenius/dify/issues/26834 Fix JSON serialization error in /console/api/files/support-type endpoint that was causing 500 Internal Server Error. error: ``` 2025-10-13 11:47:48,18 ERROR [app.py:875] 2aa3e96db4 Exception on /console/api/files/support-type [GET] Traceback (most recent call last): File "/Users/yanhe/project/opensource/dify/api/.venv/lib/python3.12/site-packages/flask/app.py", line 917, in full_dispatch_request rv = self.dispatch_request() ^^^^^^^^^^^^^^^^^^^^^^^ File "/Users/yanhe/project/opensource/dify/api/.venv/lib/python3.12/site-packages/flask/app.py", line 902, in dispatch_request return self.ensure_sync(self.view_functions[rule.endpoint])(**view_args) # type: ignore[no-any-return] ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "/Users/yanhe/project/opensource/dify/api/.venv/lib/python3.12/site-packages/flask_restx/api.py", line 406, in wrapper return self.make_response(data, code, headers=headers) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "/Users/yanhe/project/opensource/dify/api/.venv/lib/python3.12/site-packages/flask_restx/api.py", line 430, in make_response resp = self.representations[mediatype](data, *args, **kwargs) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "/Users/yanhe/project/opensource/dify/api/.venv/lib/python3.12/site-packages/flask_restx/representations.py", line 22, in output_json dumped = dumps(data, **settings) + "\n" ^^^^^^^^^^^^^^^^^^^^^^^ TypeError: {'vtt', 'MD', 'XLSX', 'TXT', 'MDX', 'mdx', 'PDF', 'txt', 'CSV', 'VTT', 'DOCX', 'XLS', 'md', 'markdown', 'xls', 'docx', 'htm', 'PROPERTIES', 'HTML', 'html', 'MARKDOWN', 'HTM', 'xlsx', 'csv', 'pdf', 'properties'} is not JSON serializable 2025-10-13 11:47:48,19 INFO [_internal.py:97] 127.0.0.1 - - [13/Oct/2025 11:47:48] "GET /console/api/files/support-type HTTP/1.1" 500 - ``` ## Screenshots | Before | After | |--------|-------| | <img width="3452" height="1310" alt="image" src="https://github.com/user-attachments/assets/e8d34945-3ce9-439f-9658-88c2e4b1b65a" /> | <img width="3432" height="1480" alt="image" src="https://github.com/user-attachments/assets/51dea372-2330-414c-be96-d03c9fdf7c0b" />| ## Checklist - [ ] This change requires a documentation update, included: [Dify Document](https://github.com/langgenius/dify-docs) - [x] I understand that this PR may be closed in case there was no previous discussion or issues. (This doesn't apply to typos!) - [x] I've added a test for each change that was introduced, and I tried as much as possible to make a single atomic change. - [x] I've updated the documentation accordingly. - [x] I ran `dev/reformat`(backend) and `cd web && npx lint-staged`(frontend) to appease the lint gods
yindo added the pull-request label 2026-02-21 20:49:44 -05:00
yindo closed this issue 2026-02-21 20:49:45 -05:00
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Reference: langgenius/dify#31584
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