objection_graph_query.js

const personWithPets = {
  firstName: 'Matt',
  lastName: 'Damon',
  age: 43,

    pets: [
    {
      name: 'Doggo',
      species: 'dog'
    },
    {
      name: 'Kat',
      species: 'cat'
    }
  ]
};

// wrap `insertGraph` call in a transaction since its creating multiple queries.
const insertedGraph = await transaction(Person.knex(), trx => {
  return (
    Person.query(trx).insertGraph(personWithPets)
  );
});