Vizion's API supplies ocean freight milestones that contain a source property indicating the data source of the event.
Each event retrieved through Vizion’s API will display the corresponding source of the milestone using a source property. This property can have one of three possible values
When the source property of an event shows "carrier", it means that the information was provided by the ocean carrier. This source is the most common as it directly comes from the carrier's systems.
AIS, or Automatic Identification System, is a tracking technology used for vessel tracking. If the source property of an event shows "ais", it means that the event was generated based on the vessel's AIS signal.
If the source property of an event shows "terminal", it means that the event was generated by the terminal. These will include milestones not commonly reported by steamship lines, such as ‘Free time to expire’ and ‘Available for pickup’, which are sourced directly from terminal operators. This allows you to receive events like ‘Discharged from Vessel’, ‘Gate Out Full’, and ‘Gate in Empty Return’ without needing to rely solely on carriers. Please reach out to firstname.lastname@example.org if you are interested in taking advantage of port and terminal data.