Custom StreamLayer - Implementation and schema

[orahlagi]

Hey,

After reading all the relevant topics regarding the StreamLayer, I have few questions that left open.

1. What should be the exact schema/interface from the server to implement a custom StreamLayer? 

fields: [
    {
      name: "OBJECTID",
      alias: "ObjectId",
      type: "oid",
    },
    {
      name: "TRACKID",
      alias: "TrackId",
      type: "oid",
    }
  ],

What do the following elements represent?  Should they appear in the WebSocket message in the same format?

2. Can a single source of WebSocket send multiple layers? Can a single StreamLayer show different icons? 

3.Animation- According to the example, When an item moves, There is no smooth animation, It's just jump from place to place, Is there any possibility to create a smooth animation? 

Thanks!