77 lines
2.2 KiB
JavaScript
77 lines
2.2 KiB
JavaScript
const taos = require("@tdengine/websocket");
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var host = null;
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for(var i = 2; i < global.process.argv.length; i++){
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var key = global.process.argv[i].split("=")[0];
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var value = global.process.argv[i].split("=")[1];
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if("host" == key){
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host = value;
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}
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}
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if(host == null){
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console.log("Usage: node nodejsChecker.js host=<hostname> port=<port>");
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process.exit(0);
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}
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async function createConnect() {
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let dsn = 'ws://' + host + ':6041'
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console.log(dsn)
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let conf = new taos.WSConfig(dsn);
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conf.setUser('root')
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conf.setPwd('taosdata')
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return await taos.sqlConnect(conf);
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}
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async function test() {
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let wsSql = null;
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let wsRows = null;
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let reqId = 0;
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try {
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wsSql = await createConnect()
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let version = await wsSql.version();
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console.log(version);
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let taosResult = await wsSql.exec('SHOW DATABASES', reqId++);
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console.log(taosResult);
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taosResult = await wsSql.exec('CREATE DATABASE IF NOT EXISTS power KEEP 3650 DURATION 10 BUFFER 16 WAL_LEVEL 1;', reqId++);
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console.log(taosResult);
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taosResult = await wsSql.exec('USE power', reqId++);
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console.log(taosResult);
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taosResult = await wsSql.exec('CREATE STABLE IF NOT EXISTS meters (_ts timestamp, current float, voltage int, phase float) TAGS (location binary(64), groupId int);', reqId++);
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console.log(taosResult);
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taosResult = await wsSql.exec('DESCRIBE meters', reqId++);
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console.log(taosResult);
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taosResult = await wsSql.exec('INSERT INTO d1001 USING meters (location, groupId) TAGS ("California.SanFrancisco", 3) VALUES (NOW, 10.2, 219, 0.32)', reqId++);
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console.log(taosResult);
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wsRows = await wsSql.query('SELECT * FROM meters', reqId++);
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let meta = wsRows.getMeta();
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console.log("wsRow:meta:=>", meta);
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while (await wsRows.next()) {
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let result = wsRows.getData();
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console.log('queryRes.Scan().then=>', result);
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}
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}
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catch (err) {
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console.error(err.code, err.message);
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}
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finally {
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if (wsRows) {
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await wsRows.close();
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}
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if (wsSql) {
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await wsSql.close();
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}
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taos.destroy();
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}
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}
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test() |