[BUG] Query params with escaped single quotes cannot be parsed

[danielfinke]

Community Note

• Please use a 👍 reaction to provide a +1/vote. This helps the community and maintainers prioritize this request.
• If you are interested in working on this issue or have submitted a pull request, please leave a comment.

Describe the bug
When using Python as query parameter inputs, single quotes in input strings cannot be parsed and are considered "invalid JSON".

• OS: macOS 15.4
• Browser: Google Chrome 135.0.7049.85
• Graph Notebook Version: 4.6.2
• Graph Database & Version: Amazon Neptune 1.4.4.0

To Reproduce
Steps to reproduce the behavior:

1. Create a notebook cell with the following input:

params = {
    'inputs': [{ 'text': 'I\'m a string with \'single quotes\'' }]
}

2. Create an openCypher cell using those params:

%%oc -qp params
UNWIND $inputs AS input
RETURN input.text

3. See error:

{
  "code": "MalformedQueryException",
  "requestId": "<requestId>",
  "detailedMessage": "Supplied 'parameters' cannot be parsed: invalid JSON",
  "message": "Supplied 'parameters' cannot be parsed: invalid JSON"
}

4. Remove the escaped single quotes from the input and observe the error goes away.

The error is also present for unescaped single quotes within a double-quoted Python string.

Expected behavior
The string with escaped single quotes is returned by the openCypher query.

[adityaramesh12]

Thanks for raising the issue @danielfinke!
Will look into it.