In a REST API, which HTTP action verb is used to insert or create a data item?

The Hypertext Transfer Protocol (HTTP) action verb POST will insert or create a data item when referencing an application programming interface (API). The HTTP action verb GET will read data from an API. The HTTP action verb UPDATE is not a valid verb; therefore, this is an invalid answer. The HTTP action verb PUT will only replace or update a data item; it will not insert a data item.