Why can't I insert a Foreign Key into my table with JSON on Postman?

[Nathan Milota]

I have two entities, Vehicle and Owner.  The Vehicle has a foreign key that references the owner of that vehicle, and whenever I try to post a foreign key to reference the owner_id for the vehicle, it gives me an error.  


{
   "timestamp": "2020-11-22T23:48:27.344+00:00",
   "status": 400,
   "error": "Bad Request",
   "message": "",
   "path": "/addVehicle"
}

It lets me add a vehicle, but only when the owner ID is null.   When I go directlly to the MySQL query on phpMyAdmin and type it in by inserting into the table using the SQL syntax, it works fine.  

[Nathan Milota]

I changed the syntax to the right way to add a foreign key, but it is coming up null.

[Nathan Milota]

I figured it out, I had insertable= false in my code which was impacting it.