How to Add Query Parameters to DART HTTP Request ?

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How to Add Query Parameters to DART HTTP Request
How to Add Query Parameters to DART HTTP Request

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How to Add Query Parameters to DART HTTP Request?

You’ll want to construct a Uri and use that for the request. Something like the given snippet below:

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

There is a dart package that provides some helper classes for HTTP requests.聽BasicUtils

Install it with the given code snippet like the below:

  basic_utils: ^1.4.0

So you can add a map of headers and query parameters to each request.

// Define some headers and query parameters
Map<String, String> headers = {
  "Accept": "application/json"
Map<String, String> queryParameters = {
  "foo": "bar"

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

// Send request
Map<String, dynamic> responseData = await HttpUtils.postForJson("", body,
      headers: headers, queryParameters: queryParameters);

If you don’t want to override the scheme of the base endpoint URL, use the below technique to convert the map to a query string and append it to the base endpoint URL.

var endpointUrl = '';
Map<String, String> queryParams = {
  'param1': '1',
  'param2': '2'
String queryString = Uri(queryParameters: queryParams).query;

var requestUrl = endpointUrl + '?' + queryString; // result -
var response = await http.get(requestUrl);


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