Methods for reading and writing terraform JSON that uses multiple object with the same key string

terraform_json.py

#!/usr/bin/env python3
import json


def list_hook(pairs):
    result = {}
    for name, value in pairs:
        if name in ('data', 'module', 'resource', 'provider', 'backend'):
            result.setdefault(name, []).append(value)
        else:
            result[name] = value
    return result
  
  
class FakeDict(dict):
    def __init__(self, items):
        self['something'] = 'something'
        self._items = items
    def items(self):
        return self._items


data = json.load(open('./test.tf.json'), object_pairs_hook = list_hook)
print(data)

data2 = [('resource', v) for v in data['resource']]

print(json.dumps(FakeDict(data2)))

test.tf.json

{
    "resource": {
        "openstack_networking_network_v2": {
            "tf-net": {
                "name": "tf-net",
                "admin_state_up": "true"
            }
        }
    },
    "resource": {
        "openstack_networking_subnet_v2": {
            "tf-subnet": {
                "name": "tf-subnet",
                "network_id": "${openstack_networking_network_v2.tf-net.id}",
                "cidr": "192.168.200.0/24",
                "ip_version": 4,
                "dns_nameservers": [
                    "8.8.8.8",
                    "8.8.4.4"
                ]
            }
        }
    },
    "resource": {
        "openstack_networking_router_v2": {
            "tf-router": {
                "name": "tf-router",
                "admin_state_up": "true",
                "external_gateway": "${var.external_gateway}"
            }
        }
    },
    "resource": {
        "openstack_networking_router_interface_v2": {
            "tf-router-iface": {
                "router_id": "${openstack_networking_router_v2.tf-router.id}",
                "subnet_id": "${openstack_networking_subnet_v2.tf-subnet.id}"
            }
        }
    },
    "resource": {
        "openstack_compute_floatingip_v2": {
            "tf-fip": {
                "pool": "${var.pool}",
                "depends_on": [
                    "openstack_networking_router_interface_v2.tf-router-iface"
                ]
            }
        }
    },
    "resource": {
        "openstack_compute_instance_v2": {
            "tf-instance": {
                "name": "tf-instance",
                "image_name": "${var.image}",
                "flavor_name": "${var.flavor}",
                "key_pair": "${var.key_pair}",
                "floating_ip": "${openstack_compute_floatingip_v2.tf-fip.address}",
                "security_groups": [
                    "default",
                    "basic-services"
                ],
                "network": {
                    "uuid": "${openstack_networking_network_v2.tf-net.id}"
                }
            }
        }
    }
}