been using the testing branch for a couple of month now without any issues. one thing to watch out for is not all firefly data importer versions are compatible to the main app.
Hello,
It’s Work for Firefly but when I try to connect Firefly III Data Import Tool, I have
Whoops! 500 :(
Sorry, the Firefly III Data Importer broke down.
Error message
JSON exception when decoding response: Syntax error
More information
The error occurred in /var/www/firefly-iii-di/app/Http/Controllers/TokenController.php:115.
Edit:
Well if you have this message check that your application is indeed accessible to visitors.