seq-index

Generate sequential indexes

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seq-index
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seq-index
Generate sequential ID values. The generated value is a 18-byte hex string. The value consists of current timestamp, an incrementing counter and the instance id.

Install

Install from npm
npm install seq-index

Usage

Create SeqIndex instance
var SeqIndex = require('seq-index');
var indexer = new SeqIndex();

get()

Generate a sequential ID using get()
var id = indexer.get();
// 15654036c1709f68f2

short()

Generate a sequential ID without instance suffix using short()
var shortId = indexer.short();
// 15654036c1709f

getByTime()

Use to convert a timestamp into a short ID for comparison
var shortId = indexer.getByTime(1470300906242, 0);
// 15654c36302000
var id = shortId + indexer.suffix;
// 15654c3630200068f2

License

MIT