constants.dart

import 'package:flutter/material.dart';

const kbottomContainerColor = Color(0xFFF05556);
const kBackgroundColor = Color(0xF5F5F5F5);

const FOODIE = "foodie";
const VENDOR = "vendor";

const String BASE_URL = "http://unitor.us/hubfoodpark/api/";

event_item.dart

class Events {
  String id;
  String uId;
  String title;
  String date;
  String startTime;
  String endTime;
  String details;
  String image;

  Events(
      {this.id,
        this.uId,
        this.title,
        this.date,
        this.startTime,
        this.endTime,
        this.details,
        this.image});

  Events.fromJson(Map<String, dynamic> json) {
    id = json['id'];
    uId = json['u_id'];
    title = json['title'];
    date = json['date'];
    startTime = json['start_time'];
    endTime = json['end_time'];
    details = json['details'];
    image = json['image'];
  }

  Map<String, dynamic> toJson() {
    final Map<String, dynamic> data = new Map<String, dynamic>();
    data['id'] = this.id;
    data['u_id'] = this.uId;
    data['title'] = this.title;
    data['date'] = this.date;
    data['start_time'] = this.startTime;
    data['end_time'] = this.endTime;
    data['details'] = this.details;
    data['image'] = this.image;
    return data;
  }
}

event_result.dart

import 'event_item.dart';

class EventResult {
  List<Events> events;
  bool status;
  String message;

  EventResult({this.events});

  EventResult.fromJson(Map<String, dynamic> json) {
    if (json['events'] != null) {
      events = new List<Events>();
      json['events'].forEach((v) {
        events.add(new Events.fromJson(v));
      });
    }
  }

  Map<String, dynamic> toJson() {
    final Map<String, dynamic> data = new Map<String, dynamic>();
    if (this.events != null) {
      data['events'] = this.events.map((v) => v.toJson()).toList();
    }
    return data;
  }

  EventResult.fromEmptyJson(Map<String, dynamic> json) {
    if (json['status'] != null) {
      status = json['status'];
      message = json['message'];
    }
  }

  Map<String, dynamic> toEmptyJson() {
    final Map<String, dynamic> data = new Map<String, dynamic>();
    data['status'] = this.status;
    data['message'] = this.message;
    return data;
  }
}

network_helper.dart

import 'dart:convert';

import 'package:http/http.dart' as http;
import 'package:hub_food_park/pojos/event/event_result.dart';
import 'package:hub_food_park/pojos/update/update_profile_response.dart';
import 'package:hub_food_park/pojos/user/response.dart';
import 'package:hub_food_park/utils/constants.dart';

class NetworkHelper {
  String url;

  NetworkHelper(this.url);

  void setUrl(String url) {
    this.url = url;
  }

  Future<UserResponse> registerUser(Map body) async {
    String mUrl = BASE_URL + this.url;

    print(body.toString());

    try {
      http.Response response = await http.post(mUrl, body: body);
      print(response.statusCode);
      Map data = jsonDecode(response.body);

      return UserResponse.fromJson(data);
    } catch (e) {
      print(e);
    }
    return null;
  }

  Future<UserResponse> login(Map body) async {
    String mUrl = BASE_URL + this.url;

    try {
      http.Response response = await http.post(mUrl, body: body);
      print(response.statusCode);
      Map data = jsonDecode(response.body);
      return UserResponse.fromJson(data);
    } catch (e) {
      print(e);
    }
    return null;
  }

  Future<UpdateProfileResponse> updateProfile(Map body) async {
    String mUrl = BASE_URL + this.url;

    try {
      http.Response response = await http.post(mUrl, body: body);
      print(response.statusCode);
      Map data = jsonDecode(response.body);
      return UpdateProfileResponse.fromJson(data);
    } catch (e) {
      print(e);
    }
    return null;
  }

  Future<UpdateProfileResponse> updatePassword(Map body) async {
    String mUrl = BASE_URL + this.url;

    try {
      http.Response response = await http.post(mUrl, body: body);
      print(response.statusCode);
      Map data = jsonDecode(response.body);
      return UpdateProfileResponse.fromJson(data);
    } catch (e) {
      print(e);
    }
    return null;
  }

  Future<EventResult> getEventList(String date, int pageNo) async {
    String mUrl = BASE_URL + this.url + '?date=$date&page=$pageNo';
    print(mUrl);
    try {
      http.Response response = await http.get(mUrl);
      print(response.statusCode);
      Map data = jsonDecode(response.body);
      if (data.containsKey('status')) {
        return EventResult.fromEmptyJson(data);
      } else {
        return EventResult.fromJson(data);
      }
    } catch (e) {
      print(e);
    }
    return null;
  }

  Future<EventResult> getMonthlyEventList(
      int month, int year, int pageNo) async {
    String mUrl = BASE_URL + this.url + '?month=$month&year=$year&page=$pageNo';
    print(mUrl);
    try {
      http.Response response = await http.get(mUrl);
      print(response.statusCode);
      Map data = jsonDecode(response.body);
      if (data.containsKey('status')) {
        return EventResult.fromEmptyJson(data);
      } else {
        return EventResult.fromJson(data);
      }
    } catch (e) {
      print(e);
    }
    return null;
  }
}