const taos = require("@tdengine/websocket"); var host = null; for(var i = 2; i < global.process.argv.length; i++){ var key = global.process.argv[i].split("=")[0]; var value = global.process.argv[i].split("=")[1]; if("host" == key){ host = value; } } if(host == null){ console.log("Usage: node nodejsChecker.js host= port="); process.exit(0); } let dbData = ["{\"metric\": \"meter_current\",\"timestamp\": 1626846402,\"value\": 10.3, \"tags\": {\"groupid\": 2, \"location\": \"California.SanFrancisco\", \"id\": \"d1001\"}}", "{\"metric\": \"meter_current\",\"timestamp\": 1626846403,\"value\": 10.3, \"tags\": {\"groupid\": 2, \"location\": \"California.SanFrancisco\", \"id\": \"d1002\"}}", "{\"metric\": \"meter_current\",\"timestamp\": 1626846404,\"value\": 10.3, \"tags\": {\"groupid\": 2, \"location\": \"California.SanFrancisco\", \"id\": \"d1003\"}}"] async function createConnect() { let dsn = 'ws://' + host + ':6041' let conf = new taos.WSConfig(dsn); conf.setUser('root'); conf.setPwd('taosdata'); conf.setDb('power'); return await taos.sqlConnect(conf); } async function test() { let wsSql = null; let wsRows = null; let reqId = 0; try { wsSql = await createConnect() await wsSql.exec('CREATE DATABASE IF NOT EXISTS power KEEP 3650 DURATION 10 BUFFER 16 WAL_LEVEL 1;', reqId++); await wsSql.schemalessInsert([dbData], taos.SchemalessProto.OpenTSDBJsonFormatProtocol, taos.Precision.SECONDS, 0); } catch (err) { console.error(err.code, err.message); process.exitCode = 1; } finally { if (wsRows) { await wsRows.close(); } if (wsSql) { await wsSql.close(); } taos.destroy(); } } test()