block-syncer-js

Fast block sync and retrieval using bloom filters
git clone git://git.defalsify.org/block-sync-js.git
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ondemand.js (519B)

      1 const window = self;
      2 
      3 self.importScripts(
      4 	'moolb.js',
      5 	'driver.js',
      6 	'sync.js',
      7 	'web3.min.js',
      8 );
      9 
     10 onmessage = function(o) {
     11 	const filters = [
     12 		bloomFromBytes(o.data.filters[0], o.data.filter_rounds),
     13 		bloomFromBytes(o.data.filters[1], o.data.filter_rounds),
     14 	];
     15 	const w3 = new Web3(o.data.w3_provider);
     16 
     17 	const callback = (o) => {
     18 		this.postMessage(o);
     19 	};
     20 	const s = new Driver(w3, o.data.lo, filters, sync_by_filter, callback);
     21 	let hi = undefined;
     22 	if (o.data.hi > 0) {
     23 		hi = o.data.hi;
     24 	}
     25 	s.start(hi);
     26 };