This API is subject to change. Bug fixes and new features will be released based on developer feedback throughout the preview period.
Finds the first item in the group.
The first() method refines the aggregation pipeline to find the first item in the group.
Expression to find the first item in the group. Learn more about using expressions in aggregation pipelines.
Field to store the result in.
Learn more about field keys.
This method doesn't return any custom errors, but may return standard errors. Learn more about standard Wix errors.