How do you add query parameters to a Dart http request?

Question

How do you correctly add query parameters to a Dart http get request? I been unable to get my request to respond correctly when trying to append the \'?param1=one¶m

Answer 1

There is a dart package that provides some helper classes for http requests.

BasicUtils : https://github.com/Ephenodrom/Dart-Basic-Utils

Install it with:

dependencies:
  basic_utils: ^1.4.0

Usage

You can add a map of headers and query parameters to each request. See the example :

// Define some headers and query parameters
Map headers = {
  "Accept": "application/json"
};
Map queryParameters = {
  "foo": "bar"
};

// Body
String body = "{ 'some':'json'}";

// Send request
Map responseData = await HttpUtils.postForJson("api.com/dosomething", body,
      headers: headers, queryParameters: queryParameters);

Additional information :

These are all methods from the HttpUtils class.

Future getForFullResponse(String url,{Map queryParameters,Map headers});
Future> getForJson(String url,{Map queryParameters,Map headers});
Future getForString(String url,{Map queryParameters,Map headers});
Future postForFullResponse(String url, String body,{Map queryParameters,Map headers});
Future> postForJson(String url, String body,{Map queryParameters,Map headers});
Future postForString(String url, String body,{Map queryParameters,Map headers});
Future putForFullResponse(String url, String body,{Map queryParameters,Map headers});
Future> putForJson(String url, String body,{Map queryParameters,Map headers});
Future putForString(String url, String body,{Map queryParameters,Map headers});
Future queryParameters,Map headers});
Future> deleteForJson(String url,{Map queryParameters,Map headers});
Future deleteForString(String url,{Map queryParameters,Map headers});
Map getQueryParameterFromUrl(String url);
String addQueryParameterToUrl(String url, Map queryParameters);