What are the commands to apply all types of zoom (full, on selected layer, etc.) in python console? I'm searching both on pyqgis cookbook and API documentantion, but I'm not finding anything interesting.
After getting around cookbook, the best place to learn is referring the QGis API Documentation. In this case we are looking for zoom functions, which are related to map canvas. So check if
Zoom functions available in QGis are provided in QgsMapCanvas Class.