Datasource

• Code location: /io/api.js

• Datasource mainly provides the following functions.

  Method	Function	Sample
  init	Initialize the system	VBW.datasource.init( cfg )
  contract	On-chain contract requests are all concentrated here	VBW.datasource.contract
  world	Get the setting of the corresponding world	VBW.datasource.world( index,ck,cfg )
  view	Method for obtaining block data	VBW.datasource.view( x, y, ext, world, ck, limit)
  module	Method for obtaining model data in batches	VBW.datasource.module( ids, ck, cfg )
  texture	Method for batch acquiring texture image data	VBW.datasource.texture( ids, ck, cfg )
  game	Method for obtaining the specified game configuration	VBW.datasource.game( id, ck )
  subscribe	Method for subscribing to block height changes of a specified network	VBW.datasource.subscribe( event,key,fun )
  off	Close the data subscription of the corresponding chain	VBW.datasource.off( event,key )

• Contracts are handled through external injection, using VBW.datasource.contract.set(map) to set them. Contract methods are executed using VBW.datasource.contract.call(method,params). This dependency injection approach reduces Septopus Engine dependencies, streamlines code, and adapts to changes and new features on the chain.