Upload Excel using nodejs - mysql

Question

I am uploading an Excel file and inserting into a mysql table. My code is working with Linux. But I want it should run with other also so I am predicting that Xls is not working.
How to change into CSV or any other way so we can upload the Excel or csv which support any version?
function getfileDetails(req, res) {
var sampleFile, fileInfo = {};
var date1=new Date();
var currdatetime = date1.getFullYear()+"-"+(date1.getMonth()+1)+"-"+date1.getDate()+" "+date1.getHours()+":"+date1.getMinutes()+":"+date1.getSeconds();
console.log(currdatetime);
var MyData = [];
if (!req.files) {
res.send('No files were uploaded.');
return;
}
sampleFile = req.files.fileInputXLSX1;
var datetimestamp = Date.now();
console.log("Uploaded -- ",sampleFile);
var fileExtn = sampleFile.name.split(".").pop();
var extractedFilename = sampleFile.name.slice(0, sampleFile.name.lastIndexOf('.'));
var userid=req.headers['userid'];
var uploadFileName = extractedFilename+'_'+userid+'_'+datetimestamp+'.'+fileExtn;
console.log("uploadFileName -- ",uploadFileName);
fileInfo = {
"name": uploadFileName,
"mimetype": sampleFile.mimetype
}
// Use the mv() method to place the file somewhere on your server
sampleFile.mv(__dirname+'/Details/'+uploadFileName, function(err) {
if (err) {
res.status(500).send(err);
}
var parseXlsx = require('excel');
parseXlsx(__dirname+'/Details/'+uploadFileName, function(err, data) {
if(err) throw err;
// data is an array of arrays
else{
if(data!=null)
{
var queryString= "Truncate table `details`;"
connection.query(queryString, function(err,result){
if(err) {
res.write(JSON.stringify(err));
res.end();
} else {
res.send('File uploaded!');
}
});
}
for (var index = 1; index < data.length; index++)
{
MyData.push(data[index][0],data[index][1],data[index][2],data[index][3], data[index][4], data[index][5],data[index][6],data[index][7],data[index][8],data[index][9]);
var queryString="INSERT INTO `details`(name,tname,fname,timestamp) VALUES ('"+data[index][0]+"','"+data[index][1]+"','"+data[index][2]+"','"+currdatetime+"')";
connection.query(queryString, function(err,result){
if(err) {
res.write(JSON.stringify(err));
res.end();
} else {
res.send('File uploaded!');
}
});
}
}
});
if(err) {
res.status(500);
res.send(err);
}
});
}
Please help ,I am New in Node.

Answer 1

hey can you try json2csv npm module. this will solve you problem #TB.M

Answer 2

This code is working fine, try this..
var xlsx = require('node-xlsx');
var fs = require('fs');
var obj = xlsx.parse(__dirname + '/new.xls'); // parses a file
var rows = [];
var writeStr = "";
//looping through all datarow
for(var i = 0; i < obj.length; i++)
{
var dataRow = obj[i];
//loop through all rows in the sheet
for(var j = 0; j < dataRow['data'].length; j++)
{
//add the row to the rows array
rows.push(dataRow['data'][j]);
}
}
//creates the csv string to write it to a file
for(var i = 0; i < rows.length; i++)
{
writeStr = writeStr + rows[i].join(",") + "\n";
}
//writes to a file, but you will presumably send the csv as a
//response instead
fs.writeFile(__dirname + "/data.csv", writeStr, function(err) {
if(err) {
return console.log(err);
}
console.log("data.csv was saved in the current directory!");
});