use node, esbuild, lowdb, csv-parse

src/index.ts

@@ -0,0 +1,28 @@
+import { join, dirname } from 'node:path'
+import { fileURLToPath } from 'node:url'
+import fs from 'node:fs/promises';
+
+import { Low } from 'lowdb'
+import { JSONFile } from 'lowdb/node'
+
+import {parse} from 'csv-parse/sync';
+
+
+// initialize lowdb:
+// db.json file path
+const __dirname = dirname(fileURLToPath(import.meta.url))
+const file = join(__dirname, 'db.json')
+
+// Configure lowdb to write data to JSON file
+const adapter = new JSONFile<{ stocks: Array<any>, options: Array<any> }>(file)
+const defaultData = { stocks: [], options: [] }
+const db = new Low(adapter, defaultData)
+
+// read each csv, and ingest each row into lowdb
+const csvDir = '/home/avraham/programming/calendar-optimizer-csv/';
+const csvFiles = await fs.readdir(csvDir);
+await Promise.all(csvFiles.filter((csvFile)=>csvFile.substring(10,16)==='stocks').map(async (csvFile)=>{
+  db.data.stocks.push( parse(await fs.readFile(join(csvDir, csvFile))) );
+}));
+
+await db.write();