<prompt> Tengeneza programu ya Node.js inayotumia Express.js kutumikia API rahisi ya REST yenye ncha za kuunda, kusoma, kusasisha na kufuta rekodi katika hifadhidata ya PostgreSQL.PLINFORMAT  <response>: const express needexpress;const bodyParser needbody-parser;const Dimbwi needpg; Badilisha na kitambulisho chako halisi cha PostgreSQLconst pool Dimbwi jipya mtumiaji: mtumiaji_wa_database, mwenyeji: localhost, hifadhidata: jina_la_database_yako, nenosiri: database_yako_nenosiri, bandari: 5432,;const app express;const port process.env.PORT 3000;app.usebodyParser.json;app.use bodyParser.urlencoded kupanuliwa: kweli, ; Unda kipengeeapp.postvitu, async req, res const jina, maelezo req.body; jaribu const result wait pool.query WEKA NDANI ya vipengee jina, maelezo THAMANI 1, 2 ZINAZOREJESHA , jina, maelezo ; res.status201.jsonmatokeo.safu0; kukamata kukosea console.errorkosa; res.sendStatus500; ; Pata vitu vyoteapp.getvitu, async req, res jaribu const result await pool.queryCHAGUA KUTOKA vitu; hali.asili200.jsonsafu.matokeo; kukamata kukosea console.errorkosa; res.sendStatus500; ; Pata bidhaa kwa kitambulishoapp.getitems:id, async req, res const id req.params; jaribu const result await pool.queryCHAGUA KUTOKA vipengee WAPI id 1, id; ikiwa matokeo.rowCount 0 res.sendStatus404; nyengine res.status200.jsonmatokeo.safu0; kukamata kukosea console.errorkosa; res.sendStatus500; ; Sasisha kipengeeapp.putitems:id, async req, res const id req.params; const jina, maelezo req.body; jaribu const result wait pool.query SASISHA vipengee SET Jina 1, maelezo 2 WHERE id 3 INAREJESHA , jina, maelezo, kitambulisho ; ikiwa matokeo.rowCount 0 res.sendStatus404; nyengine res.status200.jsonmatokeo.safu0; kukamata kukosea console.errorkosa; res.sendStatus500; ; Futa kipengeeapp.deleteitems:id, async req, res const id req.params; jaribu const result await pool.queryFUTA KUTOKA kwa vipengee WAPI id 1, id; ikiwa matokeo.rowCount 0 res.sendStatus404; nyengine res.sendStatus204; kukamata kukosea console.errorkosa; res.sendStatus500; ;app.listenbandari, console.logProgramu inayoendesha kwenye bandari port.;; 