Example of Complex Api in Flutter Like this

[{
    
    "id": 1,

    "name": "Leanne Graham",

    "username": "Bret",

    "email": "Sincere@april.biz",

    "address": {

        "street": "Kulas Light",

        "suite": "Apt. 556",

        "city": "Gwenborough",

        "zipcode": "92998-3874",

        "geo": {

            "lat": "-37.3159",

            "lng": "81.1496"

        }
    },

    "phone": "1-770-736-8031 x56442",

    "website": "hildegard.org",

    "company": {

        "name": "Romaguera-Crona",

        "catchPhrase": "Multi-layered client-server neural-net",

        "bs": "harness real-time e-markets"

    }

},

{

    "id": 2,

    "name": "Ervin Howell",

    "username": "Antonette",

    "email": "Shanna@melissa.tv",

    "address": {

        "street": "Victor Plains",

        "suite": "Suite 879",

        "city": "Wisokyburgh",

        "zipcode": "90566-7771",

        "geo": {

            "lat": "-43.9509",

            "lng": "-34.4618"

        }

    },

    "phone": "010-692-6593 x09125",

    "website": "anastasia.net",

    "company": {

        "name": "Deckow-Crist",

        "catchPhrase": "Proactive didactic contingency",

        "bs": "synergize scalable supply-chains"

    }

},

{

    "id": 3,

    "name": "Clementine Bauch",

    "username": "Samantha",

    "email": "Nathan@yesenia.net",

    "address": {

        "street": "Douglas Extension",

        "suite": "Suite 847",

        "city": "McKenziehaven",

        "zipcode": "59590-4157",

        "geo": {

            "lat": "-68.6102",

            "lng": "-47.0653"

        }

    },

    "phone": "1-463-123-4447",

    "website": "ramiro.info",

    "company": {

        "name": "Romaguera-Jacobson",

        "catchPhrase": "Face to face bifurcated interface",

        "bs": "e-enable strategic applications"

    }

},

{

    "id": 4,

    "name": "Patricia Lebsack",

    "username": "Karianne",

    "email": "Julianne.OConner@kory.org",

    "address": {

        "street": "Hoeger Mall",

        "suite": "Apt. 692",

        "city": "South Elvis",

        "zipcode": "53919-4257",

        "geo": {

            "lat": "29.4572",

            "lng": "-164.2990"

        }

    },

    "phone": "493-170-9623 x156",

    "website": "kale.biz",

    "company": {

        "name": "Robel-Corkery",

        "catchPhrase": "Multi-tiered zero tolerance productivity",

        "bs": "transition cutting-edge web services"

    }

},

{

    "id": 5,

    "name": "Chelsey Dietrich",

    "username": "Kamren",

    "email": "Lucio_Hettinger@annie.ca",

    "address": {

        "street": "Skiles Walks",

        "suite": "Suite 351",

        "city": "Roscoeview",

        "zipcode": "33263",

        "geo": {

            "lat": "-31.8129",

            "lng": "62.5342"

        }

    },

    "phone": "(254)954-1289",

    "website": "demarco.info",

    "company": {

        "name": "Keebler LLC",

        "catchPhrase": "User-centric fault-tolerant solution",

        "bs": "revolutionize end-to-end systems"

    }

}]