How to use querystringify - 10 common examples

if (!regex.test(key)) continue;
        delete cust_params[key];
      }
      delete vast_query.cust_params["$$remove"];
    }

    // transform
    let transformed = this.macros.transform(vast_query, {
      get: (key) => {
        return vast.tnl_keys[key.toLowerCase()];
      }
    });

    query.cust_params = cust_params;
    merge(query, transformed);
    query.cust_params = qs.stringify(query.cust_params);

    return true;
  }
}

if (!isPlainObject(vast_query)) return;

    // remove query parameters
    let query = parser.query;
    if (vast_query["$$remove"]) {
      for (let key in query) {
        let regex = new RegExp(vast_query["$$remove"], "i");
        if (!regex.test(key)) continue;
        delete query[key];
      }
      delete vast_query["$$remove"];
    }

    // remove cust_params parameters
    let cust_params = qs.parse(query.cust_params);
    if (vast_query.cust_params && vast_query.cust_params["$$remove"]) {
      for (let key in cust_params) {
        let regex = new RegExp(vast_query.cust_params["$$remove"], "i");
        if (!regex.test(key)) continue;
        delete cust_params[key];
      }
      delete vast_query.cust_params["$$remove"];
    }

    // transform
    let transformed = this.macros.transform(vast_query, {
      get: (key) => {
        return vast.tnl_keys[key.toLowerCase()];
      }
    });

_transformVast(vast, context) {

    let result = {
      url: vast.url
    };

    try {
      let parser = new Url(vast.url, true);
      let transformed = this._transformQuery(vast, context, parser);
      if (transformed)
        result.url = parser.toString();

      // temp
      let cust_params = qs.parse(parser.query.cust_params);
      result.bidder = cust_params.hb_bidder;
      result.price = cust_params.gd_fp;
      
      return result;
    } catch (error) {
      result.hasError = true;
      result.message = error.message;
      result.bidder = "error";
      console.log(error.message);
      return result;
    }
  }

const {
    method,
    parameters,
    headers = {},
    logging = false
  } = options

  let url = options.url

  const fetchOptions = { method, headers }

  // set the JSON body if we have one
  if (parametersForBody(method) && parametersIsObject(parameters)) {
    fetchOptions.body = JSON.stringify(parameters)
  } else if (parametersForQueryString(method) && parametersIsObject(parameters)) {
    url = R.concat(url, QueryString.stringify(parameters, true))
  }

  if (logging) {
    logRequest(url, method, parameters)
  }

  // start the clock
  const timeStart = Date.now()

  // make the call and wait
  return new Promise((resolve, reject) => {
    const clientResponse = {
      ok: false,
      json: null,
      statusCode: null
    }

export const viewComment = id => (dispatch, _, { pym }) => {
  const search = queryString.stringify({
    ...queryString.parse(location.search),
    comment_id: id,
  });

  // remove the comment_id url param
  const url = buildUrl({ ...location, search });

  try {
    // "window" here refers to the embedded iframe
    window.history.replaceState({}, document.title, url);

    // also change the parent url
    pym.sendMessage('coral-view-comment', id);
  } catch (e) {
    /* not sure if we're worried about old browsers */
  }

// Only set the API key for authenticated endpoints,
    // when it is required or optional and set on the client
    if (this._usesApiKey()) {
      query['access_token'] = this.apiKey
    }

    // Set the language for localized endpoints
    if (this.isLocalized) {
      query['lang'] = this.lang
    }

    // Merge the parsed query parts out of the url
    query = Object.assign(query, parsedQuery)

    // Build the url with the finished query
    query = qs.stringify(query, true).replace(/%2C/g, ',')
    return parsedUrl[0] + query
  }

export const viewAllComments = () => (dispatch, _, { pym }) => {
  const query = queryString.parse(location.search);

  // remove the comment_id url param
  delete query.comment_id;

  const search = queryString.stringify(query);

  const url = buildUrl({ ...location, search });

  try {
    // "window" here refers to the embedded iframe
    window.history.replaceState({}, document.title, url);

    // also change the parent url
    pym.sendMessage('coral-view-all-comments');
  } catch (e) {
    /* not sure if we're worried about old browsers */

it('sets url parameters', function () {
    var stubLoadScript = sinon.stub(adLoader, 'loadScript');

    (new Adapter()).callBids(DEFAULT_PARAMS);

    var bidUrl = stubLoadScript.getCall(0).args[0];
    var parsedBidUrl = urlParse(bidUrl);
    var parsedBidUrlQueryString = querystringify.parse(parsedBidUrl.query);

    expect(parsedBidUrl.hostname).to.equal('rtb.t.c4tw.net');
    expect(parsedBidUrl.pathname).to.equal('/Bid');

    expect(parsedBidUrlQueryString).to.have.property('s').and.to.equal('h');
    expect(parsedBidUrlQueryString).to.have.property('callback').and.to.equal('$$PREBID_GLOBAL$$.handleTwCB');
    expect(parsedBidUrlQueryString).to.have.property('callback_uid').and.to.equal('tw_abcd1234');
    expect(parsedBidUrlQueryString).to.have.property('id').and.to.equal('test');

    stubLoadScript.restore();
  });

var stubLoadScript = sinon.stub(adLoader, 'loadScript').callsFake(function(url) {
      var bidUrl = stubLoadScript.getCall(0).args[0];
      var parsedBidUrl = urlParse(bidUrl);
      var parsedBidUrlQueryString = querystringify.parse(parsedBidUrl.query);

      $$PREBID_GLOBAL$$._bidsRequested
        .push({ bidderCode: DEFAULT_PARAMS.bidderCode,
          bids: [{ bidId: parsedBidUrlQueryString.callback_uid,
            placementCode: DEFAULT_PARAMS.bids[0].placementCode }]});

      var callback = stringToFunction(parsedBidUrlQueryString.callback);
      expect(callback).to.exist.and.to.be.a('function');
      callback(BID_RESPONSE);
    });
    var stubAddBidResponse = sinon.stub(bidmanager, 'addBidResponse');

params: {},
            bidId: '9101112',
            placementCode: 'div-gpt-ad-12345-3'
          }
        ]
      };

      adapter().callBids(params);
      var bidUrl1 = stubLoadScript.getCall(0).args[0];
      var bidUrl2 = stubLoadScript.getCall(1).args[0];

      sinon.assert.calledWith(logErrorSpy, 'Bid has no unit', 'centro');
      sinon.assert.calledWith(stubLoadScript, bidUrl1);

      var parsedBidUrl = urlParse(bidUrl1);
      var parsedBidUrlQueryString = querystringify.parse(parsedBidUrl.query);
      var generatedCallback = 'window["adCentroHandler_28136300x2501234"]';

      expect(parsedBidUrl.hostname).to.equal('staging.brand-server.com');
      expect(parsedBidUrl.pathname).to.equal('/hb');

      expect(parsedBidUrlQueryString).to.have.property('s').and.to.equal('28136');
      expect(parsedBidUrlQueryString).to.have.property('url').and.to.equal('http://test_url.ru');
      expect(parsedBidUrlQueryString).to.have.property('sz').and.to.equal('300x250');
      expect(parsedBidUrlQueryString).to.have.property('callback').and.to.equal(generatedCallback);

      sinon.assert.calledWith(stubLoadScript, bidUrl2);

      parsedBidUrl = urlParse(bidUrl2);
      parsedBidUrlQueryString = querystringify.parse(parsedBidUrl.query);
      generatedCallback = 'window["adCentroHandler_28137728x905678"]';