title: Apple Search Ads API Reporting POST Method Error
body: <p>I'm trying to get report data through Apple Search Ads API. So I use the method
  -H ...\
    -d "@TestSearchTermReport.json"
    -X POST "/v1/reports/campaigns/{cId}/searchterms"</p>
  
  <p>I have included all the headers and credentials. The following is the content of my json data file for the POST body:
  {
      "startTime": "2016-11-13",
      "endTime": "2016-11-13",
      "timezone": "UTC",
      "granularity": "DAILY",
      "selector": {
          "orderBy":[{"field":"spend","sortOrder":"DESCENDING"}],
          "fields": ["spend", "taps", "conversions", "avgCPA", "avgCPC", "ttr", "conversionRate"],
          "pagination": {
              "offset": 0,
              "limit": 1000
          }
      },
      "groupBy": "countryCode",
      "returnRowTotals": False,
      "returnRecordsWithNoMetrics": False
  }</p>
  
  <p>However, I get the following error message:</p>
  
  <p>{"data":null,"pagination":null,"error":{"errors":[{"messageCode":"INVALID_JSON_REQUEST","message":"This is an invalid json. The request can not be parsed","field":"Line#:1 Column#:3"}]}}</p>
  
  <p>I have tried many times through different ways, but still not working. Is there any smart guys can help me?</p>
  
  <p>Thanks in advance!</p>