Error1 reports
Fix JSONDecodeError
in Pydantic Settings
✅ Solution
JSONDecodeError in pydantic-settings often arises when environment variables expected to contain JSON (like secrets) are improperly formatted or contain invalid JSON syntax. To fix this, ensure the environment variable holds a valid JSON string; use a JSON validator tool before setting the variable or consider encoding the data differently if strict JSON format is not necessary. Verify the variable's value and type using `os.environ.get()` before pydantic tries to parse it.
Related Issues
Real GitHub issues where developers encountered this error:
Timeline
First reported:Nov 25, 2025
Last reported:Nov 25, 2025
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