Fix different json format in between mysql versions. Different request json formats, one without quotes and the other with quotes, same code. That happemed to me in two different installations, its supposed to be because different mysql versions. one with native driver, one with normal: 5.7.24-ndb-7.6.8 vs Distrib 5.7.33

gistfile1.txt

https://stackoverflow.com/questions/26974914/laravel-eloquent-integers-returned-as-strings-in-mssql

cast the specific properties you want as ints.
protected $casts = [
    'id' => 'integer',
    'owner_id' => 'integer',
    'is_local' => 'integer',
    'vessel_type_id' => 'integer',
    'registration_number' => 'integer',
    'gross_register_tonnage' => 'integer',
    'year_built' => 'integer',
];