This API starts a 30-day trial license.
start trial API enables you to upgrade from a basic license to a 30-day
trial license, which gives access to all X-Pack features.
You are allowed to initiate a trial license only if your cluster has not
already activated a trial license for the current major X-Pack version. For
example, if you have already activated a trial for v6.0, you cannot start a new
trial until v7.0. You can, however, contact
firstname.lastname@example.org to request an
extended trial license.
To check the status of your trial license, use the following API: Get Trial Status API.
For more information about the different types of licenses, see https://www.elastic.co/subscriptions.