AdRoll to Redshift

This page provides you with instructions on how to extract data from AdRoll and load it into Redshift. (If this manual process sounds onerous, check out Stitch, which can do all the heavy lifting for you in just a few clicks.)

What is AdRoll?

AdRoll is an ecommerce growth platform aimed at remarketing and retargeting. It tracks visitors to an ecommerce site and displays retargeting ads to them as they visit other sites.

Getting data out of Adroll

AdRoll provides a Reporting API that lets developers get at delivery, segment, and other information stored in the platform. For example, to retrieve deliveries for a campaign using the AdRoll API, you would call GET /uhura/v1/deliveries/campaign and specify parameters to specify things like campaign ID and start and end dates.

Sample AdRoll data

Here's an example of the kind of response you might see with a query like the one above.

{
  "results": {
    "entity": [
      {
        "entity": "MY_CAMPAIGN_EID",
        "impressions": 789,
        "clicks": 456,
        "cost": 48.68
      }
    ],
    "date": [
      {
        "date": "2018-11-01",
        "impressions": 432,
        "clicks": 278,
        "cost": 21.2
      },
      {
        "date": "2018-11-02",
        "impressions": 357,
        "clicks": 178,
        "cost": 27.48
      }
    ]
  }
}

Preparing AdRoll data

If you don't already have a data structure in which to store the data you retrieve, you'll have to create a schema for your data tables. Then, for each value in the response, you'll need to identify a predefined datatype (INTEGER, DATETIME, etc.) and build a table that can receive them. AdRoll's documentation should tell you what fields are provided by each endpoint, along with their corresponding datatypes.

Complicating things is the fact that the records retrieved from the source may not always be "flat" – some of the objects may actually be lists. In these cases you'll likely have to create additional tables to capture the unpredictable cardinality in each record.

Loading data into Redshift

Once you have identified all of the columns you will want to insert, you can use the CREATE TABLE statement in Redshift to create a table that can receive all of this data.

With a table built, it may seem like the easiest way to migrate your data (especially if there isn't much of it) is to build INSERT statements to add data to your Redshift table row by row. If you have any experience with SQL, this will be your gut reaction. But beware! Redshift isn't optimized for inserting data one row at a time. If you have a high volume of data to be inserted, you would be better off loading the data into Amazon S3 and then using the COPY command to load it into Redshift.

Keeping AdRoll data up to date

At this point you've coded up a script or written a program to get the data you want and successfully moved it into your data warehouse. But how will you load new or updated data? It's not a good idea to replicate all of your data each time you have updated records. That process would be painfully slow and resource-intensive.

The key is to build your script in such a way that it can identify incremental updates to your data. Thankfully, AdRoll's API results include fields like date that allow you to identify records that are new since your last update (or since the newest record you've copied). Once you've take new data into account, you can set your script up as a cron job or continuous loop to keep pulling down new data as it appears.

Other data warehouse options

Redshift is great, but sometimes you need to optimize for different things when you're choosing a data warehouse. Some folks choose to go with Google BigQuery, PostgreSQL, Snowflake, or Microsoft Azure SQL Data Warehouse, which are RDBMSes that use similar SQL syntax, or Panoply, which works with Redshift instances. Others choose a data lake, like Amazon S3. If you're interested in seeing the relevant steps for loading data into one of these platforms, check out To BigQuery, To Postgres, To Snowflake, To Panoply, To Azure SQL Data Warehouse, and To S3.

Easier and faster alternatives

If all this sounds a bit overwhelming, don’t be alarmed. If you have all the skills necessary to go through this process, chances are building and maintaining a script like this isn’t a very high-leverage use of your time.

Thankfully, products like Stitch were built to move data from AdRoll to Redshift automatically. With just a few clicks, Stitch starts extracting your AdRoll data via the API, structuring it in a way that is optimized for analysis, and inserting that data into your Redshift data warehouse.