Rename Keys

Rename Keys action changes the name of a source key to a destination key.

The Rename Keys action changes the name of a source key to a destination key. When applied to your processing rule, the Rename Keys action changes the name of a specified key in every occurrence of a source record to a destination key.

For example, given the following sample website log data:

{"timestamp":"2023-03-28T09:08:41.64283645Z","user_id":3,"page_id":30,"action":"purchase"}
{"timestamp":"2023-03-28T09:08:42.643343109Z","user_id":4,"page_id":10,"action":"purchase"}
{"timestamp":"2023-03-28T09:08:48.643600498Z","user_id":1,"page_id":50,"action":"click"}
{"timestamp":"2023-03-28T09:08:50.643773688Z","user_id":5,"page_id":40,"action":"purchase"}
{"timestamp":"2023-03-28T09:08:51.643932272Z","user_id":1,"page_id":30,"action":"purchase"}
{"timestamp":"2023-03-28T09:08:56.644080944Z","user_id":2,"page_id":40,"action":"click"}
{"timestamp":"2023-03-28T09:09:03.64425954Z","user_id":3,"page_id":30,"action":"click"}
{"timestamp":"2023-03-28T09:09:03.644317046Z","user_id":1,"page_id":20,"action":"view"}
{"timestamp":"2023-03-28T09:09:10.64447719Z","user_id":2,"page_id":50,"action":"purchase"}
{"timestamp":"2023-03-28T09:09:17.644810963Z","user_id":2,"page_id":10,"action":"view"}
{"timestamp":"2023-03-28T09:09:20.644994805Z","user_id":1,"page_id":50,"action":"view"}

To change the name of the user_id key to customer_id:

1. In the processing rules tab, in the Actions dropdown, select Rename keys.

2. In the Source key field, enter user_id.

3. In the Destination key field, enter customer_id.

4. Optional: Select Regex mode to have all keys that match the regular expression to be moved to new keys defined by the substitution pattern, which can reference captures in the regular expression

5. Click Apply.

Your processing rule will now move all user_id values to the customer_id key.