Custom JSON Filter Script

I have a growing number of JSON files and need a small, well-structured script that can read a file, apply user-defined criteria, and return only the relevant, cleaned data. The exact field names, comparison operators, and output format should all be configurable so the same tool can be reused across different datasets. Key points • Language: I am happy with Python, Node.js, or another lightweight option—choose what you are most comfortable with and note any external libraries you plan to rely on (e.g., jq, pandas, lodash). • Input: one or more JSON files, either through the command line or piped stdin. • Filtering: accept simple key=value pairs as well as compound rules (AND / OR, numeric ranges, date comparisons). • Output: print to stdout or save to a new file, preserving valid JSON structure. Optional flags for pretty-print or compact mode are welcome. Deliverables 1. Source code with clear inline comments. 2. A concise README showing setup, sample commands, and a couple of example filter rules. 3. Brief guidance on extending the filter logic should new criteria be needed. I value clean, readable code over quick hacks, so please organise functions sensibly and include error handling for malformed JSON or invalid arguments. Feel free to suggest improvements or additional features if they can be added without over-engineering the solution.

Project ID: 40367214