Retrieving reach estimate using restfb

[Bilge]

Hello, i am trying to get reachestimate using restfb library but was unable to send targeting_spec parameter to facebook graph api. In php sdk the way to accomplish is like that:

$request = new FacebookRequest(
  $session,
  'GET',
  '/{ad-account-id}/reachestimate',
  array(
    'targeting_spec' => '{"behaviors": [{"id":6015559470583}],"geo_locations": {"countries":["US"],"location_types": ["home"]},"age_min": 20,"age_max": 40 }'
  )
);

$response = $request->execute();
$graphObject = $response->getGraphObject();
/* handle the result */

I tried using fetchConnection and send parameters using a map but no success.

Any help would be appreciated.

Thanks

[Norbert Bartels]

You can use the Targeting object.

        List<IDName> behaviors = new ArrayList<IDName>();
        IDName behavior = new IDName();
        behavior.setId("6015559470583");
        behaviors.add(behavior);

        TargetingGeoLocation geoLocation = new TargetingGeoLocation();
        geoLocation.setCountries(Collections.singletonList("US"));
        geoLocation.setLocationTypes(Collections.singletonList("home"));

        Targeting targetingSpec = new Targeting();
        targetingSpec.setAgeMin(20L);
        targetingSpec.setAgeMax(40L);
        targetingSpec.setGeoLocations(geoLocation);
        targetingSpec.setBehaviors(behaviors);

In fetchConnection you simple add Parameter.with("targeting_spec", targetingSpec).
Everything else should work as you tried.

Hope this helps.
Norbert

[Bilge]

Thanks for your response. I tried following

List<IDName> behaviors = new ArrayList<IDName>();
            IDName behavior = new IDName();
            behavior.setId("6015559470583");
            behaviors.add(behavior);
            TargetingGeoLocation geoLocation = new TargetingGeoLocation();
            geoLocation.setCountries(Collections.singletonList("US"));
            geoLocation.setLocationTypes(Collections.singletonList("home"));
            Targeting targetingSpec = new Targeting();
            targetingSpec.setAgeMin(20L);
            targetingSpec.setAgeMax(40L);
            targetingSpec.setGeoLocations(geoLocation);
            targetingSpec.setBehaviors(behaviors);

            JsonObject fetchObjectsResults=facebookClient.fetchConnection("{ad-account-id}/reachestimate", JsonObject.class, Parameter.with("targeting_spec", targetingSpec));

with JsonObject.class and String.class but got JsonObject[“data”] is not a JsonArray error when call fetchConnection.

Best Regards

[Norbert Bartels]

Try fetchObject with String as response object and provide the returning String. Perhaps we get some more information. ATM it looks like the returned JSON does not contain a data field.

Best Regards

[Bilge]

Thanks, i found the problem. Querying reach estimate endpoint returns an individual Json object but JsonObject.java class expects a JsonArray. Search queries return array of json objects but querying ad endpoints mostly return individual json objects only. Returned object is like that:

{
   "data": {
      "users": 21000000,
      "estimate_ready": true
   }
}

Attaching a screenshot also.

Best regards

[Norbert Bartels]

Ah, and there's the problem. The connection expects the JSON to contain a field `data` with a `JsonArray` inside, but here it is a `JsonObject`. So fetchConnection cannot work. I think we have to check this further and find a solution for this problem.

Thanks for the json,

Best Regards

[Bilge]

Yes that is the problem. For our project we applied a quick and dirty fix in JsonObject.java

public JsonArray getJsonArray(int index) {
    Object o = get(index);
    if (o instanceof JsonArray) {
      return (JsonArray) o;
    }else if(o instanceof JsonObject){
      JsonArray myJsonArr=new JsonArray();
      myJsonArr.put(o);
      return (JsonArray) myJsonArr;
    }
    throw new JsonException("JsonArray[" + index + "] is not a JsonArray.");
  }

If it helps, i can create an issue on github also.

Best Regards,

[Norbert Bartels]

Yes, it would be really great if you create an issue at github with this information. So you can track the progress easily ...

Thanks,

Norbert