/documents/mapSession/{sessionId}/insertFirstChild - Insert element as first child

sessionId

The session ID of the map session where the new element will be created as a first child.

data

InsertAsChildParameterRequest

The parameters for inserting an element as the first child of the target element.

200

The operation completed successfully

401

There is no session or the session is invalid

result

MapSessionResult[...]

All the information about the map session required to insert the element as the first child.