params 0.0.4

Params provides 'window.location.search' on client and 'request.requestedUrl.query' on server as a Map

##Params

Params is a package that provides window.location.search on client and request.requestedUrl.query on server as a Map

1. install via pub

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##On the client

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1. Import the package inside your client like this

    import 'package:params/client.dart';
   

2. At the beginning of your main function call add

    await initParams();
   

3. If the window location is http://127.0.0.1:3030/Rainbow/web/rainbow.html?id=1&language=dart the Standart client params map looks like this

    {
      id: 1, 
      language: dart, 
      _ancestorOrigins: [], 
      _hash: , 
      _host: 127.0.0.1:3030, 
      _hostname: 127.0.0.1, 
      _href: http://127.0.0.1:3030/Rainbow/web/rainbow.html?id=1&language=dart,
      _origin: http://127.0.0.1:3030, 
      _pathname: /Rainbow/web/rainbow.html, 
      _port: 3030, 
      _protocol: http:, 
      _search: ?id=1&language=dart
    }
   

Now you can access the search values using params['key'] like below

   Future main() async{
     await initParams();
     if(params['id'] != null){
       String id = params['id'];
       String language = params['language'];
       var url = http://127.0.0.1:8090/loadItem?id=$id&language=$language;
       var request = HttpRequest.getString(url).then(displayUserAccount);
     }else{
       content.text="no UserAccount id available";
     }
   };

---

##On the server

---

1. Import the package inside your server like this

    import 'package:params/server.dart';
   

2. At the beginning of your server.listen function add

    await initParams();
   

3. If a HTTP request is made to http://127.0.0.1:8090/loadItem?id=1&language=dart

the standart server params map looks like this:

    {
      id: 1,
      language: dart,
      _query: id=1&language=dart, 
      _authority: 127.0.0.1:8090, 
      _host: 127.0.0.1, 
      _port: 8090, 
      _path: /loadItem, 
      _pathSegments: [loadItem], 
      _queryParameters: {
        id: 1,
        language: dart
      }, 
      _isAbsolute: true, 
      _hasAuthority: true, 
      _origin: http://127.0.0.1:8090, 
      __isPathAbsolute: true, 
      _hashCode: 277712556
    }

Now you can access the query values using params['key'] like below

   server.listen((HttpRequest request) async {
     await initParams(request);
     //if request.requestedUrl.query is "id=1&language=dart"
     String id = params['id'];
     String language = params['language'];
     switch (request.method) {
       case "GET": 
         handleGet(request);
         break;
       case "POST": 
         handlePost(request);
         break;
       case "OPTIONS": 
         handleOptions(request);
         break;
       default: defaultHandler(request);
     }
   } 

###changelog

v 0.0.4 - adopted to await async