embedInUnionWith

Writes this pipeline into a $unionWith stage.

This method is a low-level API for building custom $unionWith stages. Regular users should use HasUnionWith.unionWith instead.

Implementation contract

When another pipeline wants to embed the current pipeline into itself, it will call this method from within the $unionWith stage. This method should thus emit the body of the stage:

{
    coll: "<collection>",
    pipeline: [ <stage1>,… ]
}

External resources

• Official documentation of $unionWith

See also