Marketing API
This document refers to an outdated version of Marketing API. Please use the latest version.
Marketing API Version

Ad Previews

Preview existing ads and generate previews of ads you want to create. Generated previews are based on your ad creative. For ad preview provide a user access token, not a Page access token. For example, preview existing ad creative:

curl -X GET \
  -d 'ad_format="DESKTOP_FEED_STANDARD"' \
  -d 'access_token=<ACCESS_TOKEN>' \
  https://graph.facebook.com/v21.0/<CREATIVE_ID>/previews
Open In Graph API Explorer
'use strict';
const bizSdk = require('facebook-nodejs-business-sdk');
const AdCreative = bizSdk.AdCreative;
const AdPreview = bizSdk.AdPreview;

const access_token = '<ACCESS_TOKEN>';
const app_secret = '<APP_SECRET>';
const app_id = '<APP_ID>';
const id = '<AD_CREATIVE_ID>';
const api = bizSdk.FacebookAdsApi.init(access_token);
const showDebugingInfo = true; // Setting this to true shows more debugging info.
if (showDebugingInfo) {
  api.setDebug(true);
}

const logApiCallResult = (apiCallName, data) => {
  console.log(apiCallName);
  if (showDebugingInfo) {
    console.log('Data:' + JSON.stringify(data));
  }
};

let fields, params;
fields = [
];
params = {
  'ad_format' : 'DESKTOP_FEED_STANDARD',
};
const previewss = (new AdCreative(id)).getPreviews(
  fields,
  params
);
logApiCallResult('previewss api call complete.', previewss);
Open In Graph API Explorer
require __DIR__ . '/vendor/autoload.php';

use FacebookAds\Object\AdCreative;
use FacebookAds\Object\AdPreview;
use FacebookAds\Api;
use FacebookAds\Logger\CurlLogger;

$access_token = '<ACCESS_TOKEN>';
$app_secret = '<APP_SECRET>';
$app_id = '<APP_ID>';
$id = '<AD_CREATIVE_ID>';

$api = Api::init($app_id, $app_secret, $access_token);
$api->setLogger(new CurlLogger());

$fields = array(
);
$params = array(
  'ad_format' => 'DESKTOP_FEED_STANDARD',
);
echo json_encode((new AdCreative($id))->getPreviews(
  $fields,
  $params
)->getResponse()->getContent(), JSON_PRETTY_PRINT);
Open In Graph API Explorer
from facebook_business.adobjects.adcreative import AdCreative
from facebook_business.adobjects.adpreview import AdPreview
from facebook_business.api import FacebookAdsApi

access_token = '<ACCESS_TOKEN>'
app_secret = '<APP_SECRET>'
app_id = '<APP_ID>'
id = '<AD_CREATIVE_ID>'
FacebookAdsApi.init(access_token=access_token)

fields = [
]
params = {
  'ad_format': 'DESKTOP_FEED_STANDARD',
}
print AdCreative(id).get_previews(
  fields=fields,
  params=params,
)
Open In Graph API Explorer
import com.facebook.ads.sdk.*;
import java.io.File;
import java.util.Arrays;

public class SAMPLE_CODE_EXAMPLE {
  public static void main (String args[]) throws APIException {

    String access_token = \"<ACCESS_TOKEN>\";
    String app_secret = \"<APP_SECRET>\";
    String app_id = \"<APP_ID>\";
    String id = \"<AD_CREATIVE_ID>\";
    APIContext context = new APIContext(access_token).enableDebug(true);

    new AdCreative(id, context).getPreviews()
      .setAdFormat(AdPreview.EnumAdFormat.VALUE_DESKTOP_FEED_STANDARD)
      .execute();

  }
}
Open In Graph API Explorer
require 'facebook_ads'

access_token = '<ACCESS_TOKEN>'
app_secret = '<APP_SECRET>'
app_id = '<APP_ID>'
id = '<AD_CREATIVE_ID>'

FacebookAds.configure do |config|
  config.access_token = access_token
  config.app_secret = app_secret
end

ad_creative = FacebookAds::AdCreative.get(id)
previewss = ad_creative.previews({
    fields: {  },
    ad_format: 'DESKTOP_FEED_STANDARD',
})
Open In Graph API Explorer

Or preview using creative spec for a domain ad for an external website:

curl -X GET \
  -d 'creative="<CREATIVE_SPEC>"' \
  -d 'ad_format="<AD_FORMAT>"' \
  -d 'access_token=<ACCESS_TOKEN>' \
  https://graph.facebook.com/v21.0/act_<AD_ACCOUNT_ID>/generatepreviews
Open In Graph API Explorer
'use strict';
const bizSdk = require('facebook-nodejs-business-sdk');
const AdAccount = bizSdk.AdAccount;
const AdPreview = bizSdk.AdPreview;

const access_token = '<ACCESS_TOKEN>';
const app_secret = '<APP_SECRET>';
const app_id = '<APP_ID>';
const id = '<AD_ACCOUNT_ID>';
const api = bizSdk.FacebookAdsApi.init(access_token);
const showDebugingInfo = true; // Setting this to true shows more debugging info.
if (showDebugingInfo) {
  api.setDebug(true);
}

const logApiCallResult = (apiCallName, data) => {
  console.log(apiCallName);
  if (showDebugingInfo) {
    console.log('Data:' + JSON.stringify(data));
  }
};

let fields, params;
fields = [
];
params = {
  'creative' : '<adCreativeSpec>',
  'ad_format' : '<adFormat>',
};
const generatepreviewss = (new AdAccount(id)).getGeneratePreviews(
  fields,
  params
);
logApiCallResult('generatepreviewss api call complete.', generatepreviewss);
Open In Graph API Explorer
require __DIR__ . '/vendor/autoload.php';

use FacebookAds\Object\AdAccount;
use FacebookAds\Object\AdPreview;
use FacebookAds\Api;
use FacebookAds\Logger\CurlLogger;

$access_token = '<ACCESS_TOKEN>';
$app_secret = '<APP_SECRET>';
$app_id = '<APP_ID>';
$id = '<AD_ACCOUNT_ID>';

$api = Api::init($app_id, $app_secret, $access_token);
$api->setLogger(new CurlLogger());

$fields = array(
);
$params = array(
  'creative' => '<adCreativeSpec>',
  'ad_format' => '<adFormat>',
);
echo json_encode((new AdAccount($id))->getGeneratePreviews(
  $fields,
  $params
)->getResponse()->getContent(), JSON_PRETTY_PRINT);
Open In Graph API Explorer
from facebook_business.adobjects.adaccount import AdAccount
from facebook_business.adobjects.adpreview import AdPreview
from facebook_business.api import FacebookAdsApi

access_token = '<ACCESS_TOKEN>'
app_secret = '<APP_SECRET>'
app_id = '<APP_ID>'
id = '<AD_ACCOUNT_ID>'
FacebookAdsApi.init(access_token=access_token)

fields = [
]
params = {
  'creative': '<adCreativeSpec>',
  'ad_format': '<adFormat>',
}
print AdAccount(id).get_generate_previews(
  fields=fields,
  params=params,
)
Open In Graph API Explorer
import com.facebook.ads.sdk.*;
import java.io.File;
import java.util.Arrays;

public class SAMPLE_CODE_EXAMPLE {
  public static void main (String args[]) throws APIException {

    String access_token = \"<ACCESS_TOKEN>\";
    String app_secret = \"<APP_SECRET>\";
    String app_id = \"<APP_ID>\";
    String id = \"<AD_ACCOUNT_ID>\";
    APIContext context = new APIContext(access_token).enableDebug(true);

    new AdAccount(id, context).getGeneratePreviews()
      .setCreative(
          new AdCreative()
        )
      .setAdFormat(AdPreview.EnumAdFormat.VALUE_<ADFORMAT>)
      .execute();

  }
}
Open In Graph API Explorer
require 'facebook_ads'

access_token = '<ACCESS_TOKEN>'
app_secret = '<APP_SECRET>'
app_id = '<APP_ID>'
id = '<AD_ACCOUNT_ID>'

FacebookAds.configure do |config|
  config.access_token = access_token
  config.app_secret = app_secret
end

ad_account = FacebookAds::AdAccount.get(id)
generatepreviewss = ad_account.generatepreviews({
    fields: {  },
    creative: '<adCreativeSpec>',
    ad_format: '<adFormat>',
})
Open In Graph API Explorer

Generating Previews

There are a few ways to generate a preview, using:

To use an ad ID for an existing ad, use ad's previews.

https://graph.facebook.com/<API_VERSION>/<AD_ID>/previews

To use an existing ad creative's ID, use the ad creative's previews.

https://graph.facebook.com/<API_VERSION>/<AD_CREATIVE_ID>/previews

To use an ad creative spec, you have two endpoint options:

For Advantage+ catalog ads pass the entire object_story_spec into the /generatepreviews endpoint, and also use product_item_ids described in Advantage+ Catalog Ads, Preview.

Previews from an ad account are only visible to people who have a role on the ad account. Previews generated using generatepreviews edge are visible to anyone.

https://graph.facebook.com/API_VERSION>/act_<AD_ACCOUNT_ID>/generatepreviews
https://graph.facebook.com/API_VERSION>/generatepreviews

Any of the four endpoints above will return an ad preview object

Examples

Create a preview using object_story_spec:

use FacebookAds\Object\AdAccount;
use FacebookAds\Object\AdCreative;
use FacebookAds\Object\Fields\AdCreativeFields;
use FacebookAds\Object\Fields\AdPreviewFields;
use FacebookAds\Object\Fields\AdCreativeLinkDataFields;
use FacebookAds\Object\Fields\AdCreativeObjectStorySpecFields;
use FacebookAds\Object\AdCreativeLinkData;
use FacebookAds\Object\AdCreativeObjectStorySpec;
use FacebookAds\Object\Values\AdPreviewAdFormatValues;
use FacebookAds\Object\Values\AdCreativeCallToActionTypeValues;

$link_data = new AdCreativeLinkData();
$link_data->setData(array(
  AdCreativeLinkDataFields::LINK => '<URL>',
  AdCreativeLinkDataFields::MESSAGE => 'Message',
  AdCreativeLinkDataFields::NAME => 'Name',
  AdCreativeLinkDataFields::DESCRIPTION => 'Description',
  AdCreativeLinkDataFields::CALL_TO_ACTION => array(
    'type' => AdCreativeCallToActionTypeValues::SIGN_UP,
    'value' => array(
      'link' => '<URL>',
    ),
  ),
));

$story = new AdCreativeObjectStorySpec();
$story->setData(array(
  AdCreativeObjectStorySpecFields::PAGE_ID => <PAGE_ID>,
  AdCreativeObjectStorySpecFields::LINK_DATA => $link_data,
));

$creative = new AdCreative();
$creative->setData(array(
  AdCreativeFields::OBJECT_STORY_SPEC => $story,
));

$account = new AdAccount('act_<AD_ACCOUNT_ID>');
$account->getGeneratePreviews(array(), array(
  AdPreviewFields::CREATIVE => $creative,
  AdPreviewFields::AD_FORMAT => AdPreviewAdFormatValues::DESKTOP_FEED_STANDARD,
));
from facebookads.adobjects.adaccount import AdAccount
from facebookads.adobjects.adpreview import AdPreview
from facebookads.adobjects.adcreative import AdCreative
from facebookads.adobjects.adcreativelinkdata import AdCreativeLinkData
from facebookads.adobjects.adcreativeobjectstoryspec \
    import AdCreativeObjectStorySpec

link_data = AdCreativeLinkData()
link_data.update({
    AdCreativeLinkData.Field.link: url,
    AdCreativeLinkData.Field.message: "Message",
    AdCreativeLinkData.Field.name: "Name",
    AdCreativeLinkData.Field.description: "Description",
    AdCreativeLinkData.Field.call_to_action: {
        "type": "SIGN_UP",
        "value": {
            "link": url,
            "link_caption": "CTA caption",
        },
    },
})

story = AdCreativeObjectStorySpec()
story.update({
    AdCreativeObjectStorySpec.Field.link_data: link_data,
    AdCreativeObjectStorySpec.Field.page_id: '<PAGE_ID>',
})

creative = AdCreative()
creative.update({
    AdCreative.Field.object_story_spec: story,
})

account = AdAccount('act_<AD_ACCOUNT_ID>')
params = {
    'ad_format': AdPreview.AdFormat.desktop_feed_standard,
    'creative': creative.export_data(),
}
ad_preview = account.get_generate_previews(params=params)
print(ad_preview)
APINodeList<AdPreview> adPreviews = new AdAccount(act_<AD_ACCOUNT_ID>, context).getGeneratePreviews()
  .setCreative(
    new AdCreative()
      .setFieldObjectStorySpec(
        new AdCreativeObjectStorySpec()
          .setFieldLinkData(
            new AdCreativeLinkData()
              .setFieldCallToAction(
                new AdCreativeLinkDataCallToAction()
                  .setFieldType(AdCreativeLinkDataCallToAction.EnumType.VALUE_SIGN_UP)
                  .setFieldValue(
                    new AdCreativeLinkDataCallToActionValue()
                      .setFieldLink(<URL>)
                      .setFieldLinkCaption("CTA Caption")
                  )
              )
              .setFieldDescription("Description")
              .setFieldLink(<URL>)
              .setFieldMessage("Message")
              .setFieldName("Name")
          )
          .setFieldPageId(<PAGE_ID>)
      )
  )
  .setAdFormat(AdPreview.EnumAdFormat.VALUE_DESKTOP_FEED_STANDARD)
  .execute();
curl -G \
  --data-urlencode 'creative={ 
    "object_story_spec": { 
      "link_data": { 
        "call_to_action": {"type":"SIGN_UP","value":{"link":"<URL>"}}, 
        "description": "Description", 
        "link": "<URL>", 
        "message": "Message", 
        "name": "Name" 
      }, 
      "page_id": "<PAGE_ID>" 
    } 
  }' \
  -d 'ad_format=DESKTOP_FEED_STANDARD' \
  -d 'access_token=<ACCESS_TOKEN>' \
  https://graph.facebook.com/v2.11/act_<AD_ACCOUNT_ID>/generatepreviews

Create an multi-product ad preview using object_story_id. To get object_story_id, first create a Multi-Product Ad.

curl -X GET \
  -d 'creative={
       "object_story_id": "<PAGE_ID>_<POST_ID>"
     }' \
  -d 'ad_format="DESKTOP_FEED_STANDARD"' \
  -d 'access_token=<ACCESS_TOKEN>' \
  https://graph.facebook.com/v21.0/act_<AD_ACCOUNT_ID>/generatepreviews
Open In Graph API Explorer
'use strict';
const bizSdk = require('facebook-nodejs-business-sdk');
const AdAccount = bizSdk.AdAccount;
const AdPreview = bizSdk.AdPreview;

const access_token = '<ACCESS_TOKEN>';
const app_secret = '<APP_SECRET>';
const app_id = '<APP_ID>';
const id = '<AD_ACCOUNT_ID>';
const api = bizSdk.FacebookAdsApi.init(access_token);
const showDebugingInfo = true; // Setting this to true shows more debugging info.
if (showDebugingInfo) {
  api.setDebug(true);
}

const logApiCallResult = (apiCallName, data) => {
  console.log(apiCallName);
  if (showDebugingInfo) {
    console.log('Data:' + JSON.stringify(data));
  }
};

let fields, params;
fields = [
];
params = {
  'creative' : {'object_story_id':'<pageID>_<postID>'},
  'ad_format' : 'DESKTOP_FEED_STANDARD',
};
const generatepreviewss = (new AdAccount(id)).getGeneratePreviews(
  fields,
  params
);
logApiCallResult('generatepreviewss api call complete.', generatepreviewss);
Open In Graph API Explorer
require __DIR__ . '/vendor/autoload.php';

use FacebookAds\Object\AdAccount;
use FacebookAds\Object\AdPreview;
use FacebookAds\Api;
use FacebookAds\Logger\CurlLogger;

$access_token = '<ACCESS_TOKEN>';
$app_secret = '<APP_SECRET>';
$app_id = '<APP_ID>';
$id = '<AD_ACCOUNT_ID>';

$api = Api::init($app_id, $app_secret, $access_token);
$api->setLogger(new CurlLogger());

$fields = array(
);
$params = array(
  'creative' => array('object_story_id' => '<pageID>_<postID>'),
  'ad_format' => 'DESKTOP_FEED_STANDARD',
);
echo json_encode((new AdAccount($id))->getGeneratePreviews(
  $fields,
  $params
)->getResponse()->getContent(), JSON_PRETTY_PRINT);
Open In Graph API Explorer
from facebook_business.adobjects.adaccount import AdAccount
from facebook_business.adobjects.adpreview import AdPreview
from facebook_business.api import FacebookAdsApi

access_token = '<ACCESS_TOKEN>'
app_secret = '<APP_SECRET>'
app_id = '<APP_ID>'
id = '<AD_ACCOUNT_ID>'
FacebookAdsApi.init(access_token=access_token)

fields = [
]
params = {
  'creative': {'object_story_id':'<pageID>_<postID>'},
  'ad_format': 'DESKTOP_FEED_STANDARD',
}
print AdAccount(id).get_generate_previews(
  fields=fields,
  params=params,
)
Open In Graph API Explorer
import com.facebook.ads.sdk.*;
import java.io.File;
import java.util.Arrays;

public class SAMPLE_CODE_EXAMPLE {
  public static void main (String args[]) throws APIException {

    String access_token = \"<ACCESS_TOKEN>\";
    String app_secret = \"<APP_SECRET>\";
    String app_id = \"<APP_ID>\";
    String id = \"<AD_ACCOUNT_ID>\";
    APIContext context = new APIContext(access_token).enableDebug(true);

    new AdAccount(id, context).getGeneratePreviews()
      .setCreative(
          new AdCreative()
            .setFieldObjectStoryId(\"<pageID>_<postID>\")
        )
      .setAdFormat(AdPreview.EnumAdFormat.VALUE_DESKTOP_FEED_STANDARD)
      .execute();

  }
}
Open In Graph API Explorer
require 'facebook_ads'

access_token = '<ACCESS_TOKEN>'
app_secret = '<APP_SECRET>'
app_id = '<APP_ID>'
id = '<AD_ACCOUNT_ID>'

FacebookAds.configure do |config|
  config.access_token = access_token
  config.app_secret = app_secret
end

ad_account = FacebookAds::AdAccount.get(id)
generatepreviewss = ad_account.generatepreviews({
    fields: {  },
    creative: {'object_story_id':'<pageID>_<postID>'},
    ad_format: 'DESKTOP_FEED_STANDARD',
})
Open In Graph API Explorer

Create an app ad preview using object_story_spec. This is the only way to generate a preview for an app ad.

curl -X GET \
  -d 'creative={
       "object_story_spec": {
         "link_data": {
           "call_to_action": {
             "type": "USE_APP",
             "value": {
               "link": "<URL>"
             }
           },
           "description": "Description",
           "link": "<URL>",
           "message": "Message",
           "name": "Name",
           "picture": "<IMAGE_URL>"
         },
         "page_id": "<PAGE_ID>"
       }
     }' \
  -d 'ad_format="MOBILE_FEED_STANDARD"' \
  -d 'access_token=<ACCESS_TOKEN>' \
  https://graph.facebook.com/v21.0/act_<AD_ACCOUNT_ID>/generatepreviews
Open In Graph API Explorer
'use strict';
const bizSdk = require('facebook-nodejs-business-sdk');
const AdAccount = bizSdk.AdAccount;
const AdPreview = bizSdk.AdPreview;

const access_token = '<ACCESS_TOKEN>';
const app_secret = '<APP_SECRET>';
const app_id = '<APP_ID>';
const id = '<AD_ACCOUNT_ID>';
const api = bizSdk.FacebookAdsApi.init(access_token);
const showDebugingInfo = true; // Setting this to true shows more debugging info.
if (showDebugingInfo) {
  api.setDebug(true);
}

const logApiCallResult = (apiCallName, data) => {
  console.log(apiCallName);
  if (showDebugingInfo) {
    console.log('Data:' + JSON.stringify(data));
  }
};

let fields, params;
fields = [
];
params = {
  'creative' : {'object_story_spec':{'link_data':{'call_to_action':{'type':'USE_APP','value':{'link':'<url>'}},'description':'Description','link':'<url>','message':'Message','name':'Name','picture':'<imageURL>'},'page_id':'<pageID>'}},
  'ad_format' : 'MOBILE_FEED_STANDARD',
};
const generatepreviewss = (new AdAccount(id)).getGeneratePreviews(
  fields,
  params
);
logApiCallResult('generatepreviewss api call complete.', generatepreviewss);
Open In Graph API Explorer
require __DIR__ . '/vendor/autoload.php';

use FacebookAds\Object\AdAccount;
use FacebookAds\Object\AdPreview;
use FacebookAds\Api;
use FacebookAds\Logger\CurlLogger;

$access_token = '<ACCESS_TOKEN>';
$app_secret = '<APP_SECRET>';
$app_id = '<APP_ID>';
$id = '<AD_ACCOUNT_ID>';

$api = Api::init($app_id, $app_secret, $access_token);
$api->setLogger(new CurlLogger());

$fields = array(
);
$params = array(
  'creative' => array('object_story_spec' => array('link_data' => array('call_to_action' => array('type' => 'USE_APP','value' => array('link' => '<url>')),'description' => 'Description','link' => '<url>','message' => 'Message','name' => 'Name','picture' => '<imageURL>'),'page_id' => '<pageID>')),
  'ad_format' => 'MOBILE_FEED_STANDARD',
);
echo json_encode((new AdAccount($id))->getGeneratePreviews(
  $fields,
  $params
)->getResponse()->getContent(), JSON_PRETTY_PRINT);
Open In Graph API Explorer
from facebook_business.adobjects.adaccount import AdAccount
from facebook_business.adobjects.adpreview import AdPreview
from facebook_business.api import FacebookAdsApi

access_token = '<ACCESS_TOKEN>'
app_secret = '<APP_SECRET>'
app_id = '<APP_ID>'
id = '<AD_ACCOUNT_ID>'
FacebookAdsApi.init(access_token=access_token)

fields = [
]
params = {
  'creative': {'object_story_spec':{'link_data':{'call_to_action':{'type':'USE_APP','value':{'link':'<url>'}},'description':'Description','link':'<url>','message':'Message','name':'Name','picture':'<imageURL>'},'page_id':'<pageID>'}},
  'ad_format': 'MOBILE_FEED_STANDARD',
}
print AdAccount(id).get_generate_previews(
  fields=fields,
  params=params,
)
Open In Graph API Explorer
import com.facebook.ads.sdk.*;
import java.io.File;
import java.util.Arrays;

public class SAMPLE_CODE_EXAMPLE {
  public static void main (String args[]) throws APIException {

    String access_token = \"<ACCESS_TOKEN>\";
    String app_secret = \"<APP_SECRET>\";
    String app_id = \"<APP_ID>\";
    String id = \"<AD_ACCOUNT_ID>\";
    APIContext context = new APIContext(access_token).enableDebug(true);

    new AdAccount(id, context).getGeneratePreviews()
      .setCreative(
          new AdCreative()
            .setFieldObjectStorySpec(
              new AdCreativeObjectStorySpec()
                .setFieldLinkData(
                  new AdCreativeLinkData()
                    .setFieldCallToAction(
                      new AdCreativeLinkDataCallToAction()
                        .setFieldType(AdCreativeLinkDataCallToAction.EnumType.VALUE_USE_APP)
                        .setFieldValue(
                          new AdCreativeLinkDataCallToActionValue()
                            .setFieldLink(\"<url>\")
                        )
                    )
                    .setFieldDescription(\"Description\")
                    .setFieldLink(\"<url>\")
                    .setFieldMessage(\"Message\")
                    .setFieldName(\"Name\")
                    .setFieldPicture(\"<imageURL>\")
                )
                .setFieldPageId(\"<pageID>\")
            )
        )
      .setAdFormat(AdPreview.EnumAdFormat.VALUE_MOBILE_FEED_STANDARD)
      .execute();

  }
}
Open In Graph API Explorer
require 'facebook_ads'

access_token = '<ACCESS_TOKEN>'
app_secret = '<APP_SECRET>'
app_id = '<APP_ID>'
id = '<AD_ACCOUNT_ID>'

FacebookAds.configure do |config|
  config.access_token = access_token
  config.app_secret = app_secret
end

ad_account = FacebookAds::AdAccount.get(id)
generatepreviewss = ad_account.generatepreviews({
    fields: {  },
    creative: {'object_story_spec':{'link_data':{'call_to_action':{'type':'USE_APP','value':{'link':'<url>'}},'description':'Description','link':'<url>','message':'Message','name':'Name','picture':'<imageURL>'},'page_id':'<pageID>'}},
    ad_format: 'MOBILE_FEED_STANDARD',
})
Open In Graph API Explorer


Instagram Explore home Ad Previews using INSTAGRAM_EXPLORE_GRID_HOME ad format

curl -X GET \
  -d 'ad_format="INSTAGRAM_EXPLORE_GRID_HOME"' \
  -d 'access_token=<ACCESS_TOKEN>' \
  https://graph.facebook.com/v21.0/<AD_ID>/previews

This returns something like this:

{
  "data": [
    {
      "body": "<iframe src=\"https://www.facebook.com/ads/api/preview_iframe.php?d=AQKuwYcWpyFgVKLORPWQi52_uTud4v8PpMoDtyBfntL65i0iFtgkiXWN5S4JMBhq-UMKQmvxXFexVxu-5l5Xbf4WWRP48sCAtn3ArQAXwbdrD5qH0EL2z34K-gAgYyENd80cOGAdhVreKGJZvPkLbjDS3iDkdqdNNJQ6yaAFTmUpaz__cjgmhVVCUW68wU3UOZwqlv376mkijYR57Sm2OlyES4U6ivMPNGDx4xnZEd5d8kWyagDD-lPbCaGEk0nnQF5mnyeV9pFqdByhq-IqN6n0ZhSWjCPXZQa84wu5GNQ70YR2w7QxEYoiWCgI2WP0Z2OPeUMiNOf9bhYB-TBZJZ7G6HylsOnzzII9FQ8-0K-b_Q&t=AQJws9t-TtIGrKoFtCM\" width=\"274\" height=\"213\" scrolling=\"yes\" style=\"border: none;\"></iframe>"
    }
  ]
}

Instagram search results Ad Previews using INSTAGRAM_SEARCH_CHAIN ad format

curl -X GET \
  -d 'ad_format="INSTAGRAM_SEARCH_CHAIN"' \
  -d 'access_token=<ACCESS_TOKEN>' \
  https://graph.facebook.com/v21.0/<AD_ID>/previews

This returns something like this:

{
  "data": [
    {
      "body": "<iframe src=\"https://www.facebook.com/ads/api/preview_iframe.php?d=AQKVMPdwuorP3mliXRaOi0TCSvsGRfucEzBTnB4jghArle84f8kBjvJmX3gmdjniUjohKA3GUppDZqljStZwxxRRxkQl9Y4R1o5wV4zRGE3xO3NHf1_qBbFM_uEIGAnAvptMWo_DLpbiIqIYFMjxbXNELzmZQsR0gnbBjaXM9i6gkI29dnHPqnm4xGvPxo2w8RWeXfWvmik2C96_2PrhrRhh4NKL3SOmFC9JDVsTp9Z6SYDlLVcLJWwpRKmciAZqEMOnMEFgepVTZ39yJ4ZiAMRo76RK9XNVGcornsUBtxI8cZHKtdW7nmj3ivq09_NGGUnFiJdJaPm-Mk-obM3K0QyOvgHKwnmLn7wvMiizJeXPEWAcSBa4DPUFLAO1mSuaKla0VQ6tzAM4BqFU9LJOG1-zZmPec7wKxQGDcrXoCOKfv2xkLyzECc-oDS0JJgvxxlo&t=AQI8ECKvkemIoVDaDrs\" width=\"274\" height=\"213\" scrolling=\"yes\" style=\"border: none;\"></iframe>"
    }
  ],
  "__www_request_id__": "AzCC2RoeSL0rMbSPTYDyDHa"
}