google_places_api

.dart

//geocoding base url
static const String geocodingBaseUrl = "https://maps.googleapis.com/maps/api/geocode/json";
static const String googlePlaceDetailsBaseUrl = "https://maps.googleapis.com/maps/api/place/details/json";

   //convert lat, lng to address, sessionToken can be ignored, used to group requests for easier tracking in google console

Future<Map<String, dynamic>> reverseGeoCode(String latitude, String longitude,
      String sessionToken) async {
    Uri requestUrl =
    Uri.parse("${geocodingBaseUrl}?latlng=$latitude,$longitude"
        "&key=$googleMapsApiKey&sessiontoken=$sessionToken");

  //if you want addresses without the numbers is in it, but i observed that the results becomes limited, please dm me if you
  //find a way around this.
    //&result_type=street_address&location_type=ROOFTOP

    var response = await http.get(requestUrl).timeout(Duration(seconds: 30));


    if (response.statusCode == 200) {
      var result = jsonDecode(response.body);
      return result;
    }
    return {};
  }

 //get the first formatted address, 
 String formattedAddress = result["results"][0]["formatted_address"];
 //get the place id.
 String placeId = result["results"][0]["place_id"];

//get users address from latitude and longitude 
Future<Map<String, dynamic>> getUsersCountry(String latitude,
      String longitude) async {
    Uri requestUrl = Uri.parse(
        "${AppUrl.geocodingBaseUrl}?latlng=$latitude,$longitude"
            "&result_type:country&key=$googleMapsApiKey&sessiontoken=getCountry");

    var response = await http.get(requestUrl);

    if (response.statusCode == 200) {
      var result = jsonDecode(response.body);
      return result;
    }
    return {};
  }

//or use place id (recommended by google)
Future<Map<String, dynamic>> placeDetails(String placeId,
      String sessionToken) async {
    Uri requestUrl =
    Uri.parse("${googlePlaceDetailsBaseUrl}?place_id=$placeId"
        "&key=$googleMapsApiKey&sessiontoken=$sessionToken");

    var response = await http.get(requestUrl);
    if (response.statusCode == 200) {
      var result = jsonDecode(response.body);
      return result;
    }
    return {};
  }

//get the current latitude and longitude from the response
//I used the placeID and not longitude and latitude in my code the response might be the same.
Map<String, dynamic> location = placeDetails["result"]["geometry"]["location"];
final lat = location["lat"];
final long = location["lng"];

//TOO lazy to create a model class for the responses so i just picked the ones i needed, check their documentation for the 
//full response.