data_structure.json

{
    "email-simulator": {
        "users": {
            "1": {
                "username": "speters",
                "name": "steven",
                "lastname": "peters",
                "address": "72 anderson park",
                "phone": "1-(339)987-9467",
                "email": "speters@gmail.com",
                "city": "1",
                "province": "1",
                "country": "1",

                "labels": {
                    "1": "friends",
                    "2": "shopping"
                }
            },
            "2": {
                "username": "jtaylor",
                "name": "judy",
                "lastname": "taylor",
                "address": "390 hanover crossing",
                "phone": "33-(225)194-3738",
                "email": "jtaylor@gmail.com",
                "city": "1",
                "province": "1",
                "country": "1",

                "labels": {}
            },
            "3": {
                "username": "lallen",
                "name": "linda",
                "lastname": "allen",
                "address": "95 boyd plaza",
                "phone": "353-(494)811-0550",
                "email": "lallen@gmail.com",
                "city": "1",
                "province": "1",
                "country": "1",

                "labels": {
                    "1": {
                        "name": "family",
                        "description": ""
                    },
                    "2": {
                        "name": "work",
                        "description": ""
                    }
                }
            },
        },
        "messages": {
            "1": {
                "sender": "1",
                "subject": "first one!",
                "message": "<p>Hi,</p><p>this is my first message!!</p>",
                "date": 983275235320,
                "attachments": {
                    "1": "https://firebasestorage.googleapis.com/v0/b/filetest-d7b65.appspot.com/o/attachment_picture_1.jpeg?alt=media&token=f1ac5a50-200e-4c82-a753-caece7c98a53",
                    "2": "https://firebasestorage.googleapis.com/v0/b/filetest-d7b65.appspot.com/o/attachment_picture_2.jpg?alt=media&token=6b8a8c8a-273b-43e7-99f6-c6da9ebe2856",
                    "3": "https://firebasestorage.googleapis.com/v0/b/filetest-d7b65.appspot.com/o/attachment_file.zip?alt=media&token=f25d1600-e9fd-45bd-b9ab-819943a90403"
                },
                "recipients": {
                    "2": "jtaylor",
                    "3": "lallen"
                },
                "labels": {
                    "1": "friends"
                }
            }
        },
        "cities": {
            "1": {
                "name": "mar del plata",
                "province": "1"
            }
        },
        "provinces": {
            "1": {
                "name": "buenos aires",
                "country": "1"
            }
        },
        "countries": {
            "1": {
                "name": "argentina"
            }
        }
    }
}