Signzy Website POST Request API Fix

I'm facing an issue with POST requests on my Signzy website when trying to upload documents.

Key Project Details:
- Issue: POST requests not being processed
- Affected Feature: Data upload functionality
- Data Format: Documents

Desired Outcome:
- The POST request issue on the Signzy website needs to be fixed to allow successful upload of documents through the data upload functionality.

Ideal Freelancer Skills:
- Proficient in web development
- Extensive experience with POST requests
- Strong understanding of data upload mechanisms
- Previous experience with Signzy or similar platforms is a plus

Please note that the project must be completed in a timely manner and should include thorough testing to ensure the fix is fully operational.