cloudsolutions-atoms/lib/controllers/api_routes/api_manager.dart

import 'dart:convert';
import 'dart:developer';

import 'package:flutter/cupertino.dart';
import 'package:fluttertoast/fluttertoast.dart';
import 'package:http/http.dart' as http;
import 'package:http/http.dart';
import 'package:test_sa/models/user.dart';

class ApiManager {

  ApiManager._();

  Map<String,String> get _headers => {
    'Content-Type': 'application/json',
    if(user != null) 'Authorization': 'Bearer ${user.token}',
  };

  static ApiManager instance = ApiManager._();

  User user;

  Future<http.Response> get(
      String url,
      {Map<String,String> headers,}
    ) async{

    headers ??= {};

    headers.addAll(_headers);

    Uri _url = Uri.parse(url);
   // print(_url);
   //  print(headers);
    http.Response response = await http.get(_url,headers: headers);
    if(jsonDecode(response.body) is Map<String,dynamic>){
      final message = jsonDecode(response.body)["message"];
      if(message != null && message.toString().isNotEmpty){
        Fluttertoast.showToast(msg: message ?? "",toastLength: Toast.LENGTH_LONG);
      }
    }

    return response;
  }

  Future<http.Response> post(
      String url, {
        Map<String,String> headers,
        @required Map<String,dynamic> body,
      }
    ) async{

    headers ??= {};

    headers.addAll(_headers);

    Uri _url = Uri.parse(url);
    // print(_url);
    // print(headers);
    // log(json.encode(body));
    var request = http.Request('POST', _url);
    request.body = json.encode(body);
    request.headers.addAll(headers);

    http.StreamedResponse _streamedResponse = await request.send();
    http.Response response = await http.Response.fromStream(_streamedResponse);
//    print(response.statusCode);
//    log(response.body);

    if(jsonDecode(response.body) is Map<String,dynamic>){
      final message = jsonDecode(response.body)["message"];
      if(message != null && message.toString().isNotEmpty){
        Fluttertoast.showToast(msg: message ?? "",toastLength: Toast.LENGTH_LONG);
      }
    }

    return response;
  }

  Future<http.Response> put(
      String url, {
        Map<String,String> headers,
        @required Map<String,dynamic> body,
      }
      ) async{

    headers ??= {};

    headers.addAll(_headers);

    Uri _url = Uri.parse(url);
    // print(_url);
    // print(headers);
    // log(json.encode(body));
    var request = http.Request('PUT', _url);
    request.body = json.encode(body);
    request.headers.addAll(headers);

    http.StreamedResponse streamedResponse = await request.send();
    http.Response response = await http.Response.fromStream(streamedResponse);
    // print(response.statusCode);
    // log(response.body);
    if(jsonDecode(response.body) is Map<String,dynamic>){
      final message = jsonDecode(response.body)["message"];
      if(message != null && message.toString().isNotEmpty){
        Fluttertoast.showToast(msg: message ?? "",toastLength: Toast.LENGTH_LONG);
      }
    }
    return response;
  }

  Future<http.Response> multiPart(
      String url, {
        Map<String,String> headers,
        @required Map<String,String> body,
        @required List<Future<MultipartFile>> files,
      }) async{
    Map<String,String> _headers = const {'Content-Type': 'multipart/form-data',};

    headers ??= {};

    headers.addAll(_headers);

    Uri _url = Uri.parse(url);
    // print(_url);
    // print(_headers);
    // print(json.encode(body));
    var request = http.MultipartRequest('POST', _url);
    request.fields.addAll(body);
    request.headers.addAll(_headers);

    for (var element in files) {
      request.files.add(await element);
    }

    //request.files.addAll(_files);
    // print(request.files);
    http.StreamedResponse streamedResponse = await request.send();
    http.Response response = await http.Response.fromStream(streamedResponse);
    // print(response.statusCode);
    // log(response.body);
    if(jsonDecode(response.body) is Map<String,dynamic>){
      final message = jsonDecode(response.body)["message"];
      if(message != null && message.toString().isNotEmpty){
        Fluttertoast.showToast(msg: message ?? "",toastLength: Toast.LENGTH_LONG);
      }
    }
    return response;
  }
}