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&param2=two' to my url, yet it works correctly in Postman. Here's the gist of my code:

    final String url = "https://www.myurl.com/api/v1/test/";     String workingStringInPostman = "https://www.myurl.com/api/v1/test/123/?param1=one&param2=two";      Map<String, String> qParams = {      'param1': 'one',      'param2': 'two',     };      var res = await http       .get(Uri.encodeFull("$url${widget.pk}/"),       headers: {HttpHeaders.authorizationHeader: "Token $token",          HttpHeaders.contentTypeHeader: "application/json"}, ); 

The ${widget.pk} is simply a integer value being pass (See the value 123 in the workingStringInPostman variable.

The qParams is there for connivence, in case a Uri parameter is needed.

A code example would be welcomed.

Answer 1

You'll want to construct a Uri and use that for the request. Something like

final queryParameters = {   'param1': 'one',   'param2': 'two', }; final uri =     Uri.https('www.myurl.com', '/api/v1/test/${widget.pk}', queryParameters); final response = await http.get(uri, headers: {   HttpHeaders.authorizationHeader: 'Token $token',   HttpHeaders.contentTypeHeader: 'application/json', }); 

See https://api.dartlang.org/stable/2.0.0/dart-core/Uri/Uri.https.html