Flutter network and data storage framework construction-b1

 HitNet framework

Configuration based request encapsulation and hi_net Architecture building

 

enum HttpMethod{GET, POST, DELETE}

///  Basic request 
abstract class BaseRequest{
  var pathParams;
  var useHttps = true;
  String authority(){
    return "api.devio.org";
  }
  HttpMethod httpMethod();
  String path();
  String url(){
    Uri uri;
    var pathStr = path();
    //  Splicing path Parameters 
    if(pathParams != null){
      if(path().endsWith("/")){
        pathStr = "${path()}$pathParams";

      }else{
        pathStr = "${path()}/$pathParams";
      }
    }
    // htttp  and https Switch 
    if(useHttps){
      uri = Uri.https(authority(), pathStr,params);
    }else{
      uri = Uri.http(authority(), pathStr,params);
    }
    print("url:${uri.toString()}");
    return uri.toString();
  }
  //  Log in 
  bool needLogin();

  Map<String,String>params = Map();

  //  Add parameter 
  BaseRequest add(String k,Object v){
    params[k] = v.toString();
    return this;
  }

  Map<String,dynamic> header = Map();
  //  add to header
   BaseRequest addHeader(String k,Object v){
    params[k] = v.toString();
    return this;
  }


}

import 'package:flutter_bilibli_app/http/request/base_request.dart';

class TestRequest extends BaseRequest{
  @override
  HttpMethod httpMethod() {
    return HttpMethod.GET;
  }

  @override
  bool needLogin() {
    return false;
   
  }

  @override
  String path() {
    return 'uapi/test/test';
  }

}

import 'package:flutter_bilibli_app/http/request/base_request.dart';

class HiNet{
  HiNet._();
  static HiNet? _instance;
  static HiNet? getInstance(){
    if(_instance == null){
      _instance = HiNet._();
    }
    return _instance;
  }
  Future fire(BaseRequest request) async{
    var response = await send(request);
    var result = response['data'];
    print(result);
    return result;
  }

  Future<dynamic>send<T>(BaseRequest request) async{
    print('url:${request.url()}');
    print('method:${request.httpMethod()}');
    request.addHeader("token", "123");
    print('header:${request.header}');
    return Future.value({
      "statusCode":200,
      "data":{"code":0,"message":'success'}
      });
  }

  void printLog(log){
    print('hi_net:${log.toString()}');
  }
}

hi_net Unified exception and return handling and Adapter Pattern design