55 lines
1.6 KiB
JavaScript
55 lines
1.6 KiB
JavaScript
/* xlsx.js (C) 2013-present SheetJS -- http://sheetjs.com */
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/* eslint-env node */
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/* global Promise */
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const XLSX = require('xlsx');
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const assert = require('assert');
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const MongoClient = require('mongodb').MongoClient;
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const url = 'mongodb://localhost:27017/sheetjs';
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const db_name = 'sheetjs';
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/* make new workbook object from CSV */
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const wb = XLSX.read('a,b,c\n1,2,3', {type:"binary", raw:true});
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let P = Promise.resolve("sheetjs");
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/* Connect to mongodb server and initialize collection */
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P = P.then(async () => {
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const client = await MongoClient.connect(url);
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const db = client.db(db_name);
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try { await db.collection('wb').drop(); } catch(e) {}
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const coll = db.collection('wb');
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return [client, coll];
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});
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/* Insert entire workbook object as a document */
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P = P.then(async ([client, coll]) => {
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const res = await coll.insertOne(wb);
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assert.equal(res.insertedCount, 1);
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return [client, coll];
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});
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/* Change cell A1 of Sheet1 to "J" and change A2 to 5 */
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P = P.then(async ([client, coll]) => {
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const res = await coll.updateOne({}, { $set: {
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"Sheets.Sheet1.A1": {"t": "s", "v": "J"},
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"Sheets.Sheet1.A2": {"t": "n", "v": 5},
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}});
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assert.equal(res.matchedCount, 1);
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assert.equal(res.modifiedCount, 1);
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return [client, coll];
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});
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/* Write to file */
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P = P.then(async ([client, coll]) => {
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const res = await coll.find({}).toArray();
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const wb = res[0];
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XLSX.writeFile(wb, "mongo.xlsx");
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const ws = XLSX.readFile("mongo.xlsx").Sheets.Sheet1;
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console.log(XLSX.utils.sheet_to_csv(ws));
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return [client, coll];
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});
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/* Close connection */
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P.then(async ([client]) => { client.close(); });
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