title: Query ADH using a filter
body: <p>I am trying to query the Google ADH API (<a href="https://developers.google.com/ads-data-hub/reference/rest/v1/customers.adsDataLinks/list" rel="nofollow noreferrer">https://developers.google.com/ads-data-hub/reference/rest/v1/customers.adsDataLinks/list</a>)</p>
  <p>For reference I get a response sample as:</p>
  <pre><code>  {'name': 'customers/68689789/adsDataLinks/XXXXXXXXXX',
    'linkedEntity': {'entityId': '897777777', 'type': 'GOOGLE_ADS_CAMPAIGN'},
    'parentEntity': {},
    'platform': 'GOOGLE_ADS',
    'customerLink': {'name': 'xyz/780/78',
    'customerId': '97896868',
     'displayName': 'VENDOR_ID'},
    'status': 'APPROVED',
    'createTime': '2020-04-04T16:51:47.738710Z',
    'updateTime': '2020-04-04T16:51:47.738710Z'
  }
  </code></pre>
  <p>I have everything set up so that I can query ADH using a client. I have written a function</p>
  <pre><code>        datesss='2020-04-04T16:51:47.738710Z'
          kwargs = {
              'parent': self.parent,
              'filter':f&quot;updateTime={datesss}&quot;,
              'pageSize': 1,
              'pageToken': pageToken
          }
          request = self.service.customers().adsDataLinks().list(**kwargs)
          response = self.execute_adh_request(request)
  
          return response.get('links', []), response.get('nextPageToken', '')
  
  </code></pre>
  <p>I get this error:
  HttpError: &lt;HttpError 400 when requesting <a href="https://adsdatahub.googleapis.com/v1/customers/802/adsDataLinks?filter=updateTime%3D2020-04-04T16%3A51%3A47.738710Z&amp;pageSize=1&amp;pageToken=&amp;key=AIzaSyBsDsBR-PhJu2kUiH9O_tRgLfdLP9L_YUo&amp;alt=json" rel="nofollow noreferrer">https://adsdatahub.googleapis.com/v1/customers/802/adsDataLinks?filter=updateTime%3D2020-04-04T16%3A51%3A47.738710Z&amp;pageSize=1&amp;pageToken=&amp;key=AIzaSyBsDsBR-PhJu2kUiH9O_tRgLfdLP9L_YUo&amp;alt=json</a> returned &quot;Invalid filter expression: updateTime=2020-04-04T16:51:47.738710Z (Error 0420)&quot;&gt;</p>
  <p>I then enclosed the filter expression as such as</p>
  <pre><code>'filter':f&quot;updateTime='{datesss}'&quot;
  </code></pre>
  <p>NOTE: This is just a sample, I want to extract all links that have a creation date in 2021
  Please can someone guide me how I can use the filter function to do this.</p>