How to handle infinite child arrays to add datas using nodejs?

I have a payload structure to add datas into db, each object have name with child array, db should add each object with parent id. how to handle these array in loop adding data in database?

payload structure:

{
    "name": "food",
    "child_categories": [
        {
            "name": "non-frozen",
            "child_categories": [
               {
                   "name":"non-branded",
                    "child_categories": [
                        {
                            "name":"food-grains",
                            "child_categories": [
                                {
                                   "name":"rice"
                                },
                                {
                                    "name": "atta"
                                },
                                {
                                    "name": "maida"
                                },
                                {
                                    "name": "sooji"
                                },
                                {
                                    "name":"ragi"
                                },
                                {
                                    "name": "jower"
                                },
                                {
                                    "name": "bajra"
                                }
                            ]
                        },
                        {
                            "name":"salt&spices",
                             "child_categories": [
                                 {
                                     "name":"whole-spices"
                                 },
                                 {
                                     "name":"grounded-spices"
                                 }
                             ]
                        },
                        {
                            "name":"dried-condiments",
                             "child_categories": [
                                 {
                                     "name":"salt"
                                 },
                                 {
                                     "name":"powders"
                                 },
                                 {
                                     "name":"sugar"
                                 },
                                 {
                                     "name":"jaggery"
                                 }

                             ]
                        },
                        {
                            "name": "edible-oil&ghee"
                        },
                        {
                            "name": "lentils",
                            "child_categories":[
                                {
                                    "name":"all-dals"
                                },
                                {
                                    "name":"all-rajma"
                                },
                                {
                                    "name":"chanas"
                                },
                                {
                                    "name":"millets"
                                },
                                {
                                    "name":"soya"
                                }
                            ]
                        }

                    ]
               },
               {
                   "name":"branded",
                       "child_categories": [
                        {
                            "name":"food-grains",
                            "child_categories": [
                                {
                                   "name":"rice"
                                },
                                {
                                    "name": "atta"
                                },
                                {
                                    "name": "maida"
                                },
                                {
                                    "name": "sooji"
                                },
                                {
                                    "name":"ragi"
                                },
                                {
                                    "name": "jower"
                                },
                                {
                                    "name": "bajra"
                                }
                            ]
                        },
                        {
                            "name":"salt&spices",
                             "child_categories": [
                                 {
                                     "name":"whole-spices"
                                 },
                                 {
                                     "name":"grounded-spices"
                                 }
                             ]
                        },
                        {
                            "name":"dried-condiments",
                             "child_categories": [
                                 {
                                     "name":"salt"
                                 },
                                 {
                                     "name":"powders"
                                 },
                                 {
                                     "name":"sugar"
                                 },
                                 {
                                     "name":"jaggery"
                                 }

                             ]
                        },
                        {
                            "name": "edible-oil&ghee"
                        },
                        {
                            "name": "lentils",
                            "child_categories":[
                                {
                                    "name":"all-dals"
                                },
                                {
                                    "name":"all-rajma"
                                },
                                {
                                    "name":"chanas"
                                },
                                {
                                    "name":"millets"
                                },
                                {
                                    "name":"soya"
                                }
                            ]
                        },
                        {
                            "name":"snacks&cereals",
                            "child_categories":[
                                {
                                    "name":"biscuits"
                                },
                                {
                                    "name":"cookies"
                                },
                                {
                                    "name":"bhujia"
                                },
                                {
                                    "name":"mixture"
                                }
                            ]
                        },
                        {
                            "name":"packaged-raw",
                            "child_categories":[
                                {
                                    "name":"noodles"
                                },
                                {
                                    "name":"pasta"
                                },
                                {
                                    "name":"macaroni"
                                },
                                 {
                                    "name":"spreads"
                                },
                                 {
                                    "name":"sauces"
                                },
                                 {
                                    "name":"ready-to-eat"
                                },
                                {
                                    "name":"chocs"
                                },
                                {
                                    "name":"pickles&chutney"
                                }
                            ]
                        }

                    ]
               }
            ]
        }
      
    ]
}

Each categories have sub categories,with up level parent_id, once first level category added, it should take that id, add it into child category. example structure below

{
  _id: "1",
  parent_category_id: null, // 1st level category
  name:"food"
}

{
  _id:2,
  parent_category_id: 1,
  name: "non-frozen"
}

{  
  _id: 3,
  parent_category_id: 2,
  name: "non-branded"
}
{
  _id: 4,
  parent_category_id: 3,
  name: "food-grains"
}

and so on...