Convert Json into Xlsx File - json

Question

I am trying to covert json data into Xlsx file and save it in a folder.
I have been trying to use icg-json-to-xlsx module but till now I have been unable to use it.
My code looks like this:
jsonXlsx = require('icg-json-to-xlsx');
filename = path.join('./files', "output.xlsx");
outputFile = jsonXlsx(filename, result) //result contains json data
console.log(outputFile);
but I got this error
outputFile = jsonXlsx(filename, result)
^
TypeError: Property 'jsonXlsx' of object # is not a function
Getting data from mongodb:
in routes:
router.get('/', function(req, res, next) {
fileController.getAll(function(err, result){
if(err){
res.send(500,err);
}
// res.json(result);
var data = result;
in controller:
FileController.prototype.getAll = function(callback){
File.find( {}, {_id: false, id: true, name: true, status: true}, function(err, file){
if(err) {
return callback(err);
} else {
if (!file) {
return callback('file not found');
}
}
callback(null, file);
}
)};

Answer 1

Try this
outputFile = jsonXlsx.writeFile(filename, result);
jsonXlsx is object, which contains methods like writeFile, writeBuffer, so you can't call jsonXlsx as function... or you need add reference to function like this
jsonXlsxWriteFile = require('icg-json-to-xlsx').writeFile;
outputFile = jsonXlsxWriteFile(filename, result)
Example
var jsonXlsx = require('icg-json-to-xlsx');
var path = require('path');
var filename = path.join('./files', "output.xlsx");
var result = [
{ id: '1', name: 'test', status: '123' },
{ id: '2', name: 'david', status: '323'},
{ id: '3', name: 'ram', status: '2323' }
];
var outputFile = jsonXlsx.writeFile(filename, JSON.stringify(result));
console.log(outputFile);
Update:
File
.find({ })
.select({
_id: false, id: true, name: true, status: true
})
.lean()
.exec(function(err, file) {
//
});
In your case, query returns MongooseDocuments, but jsonXlsx needs plain JavaScript objects, so that's why you should use lean()

Answer 2

You can try Alasql JavaScript SQL library. It includes a module to work with JSON and XLSX files (with support of js-xlsx.js library).
Install these two libraries into your project.
npm install alasql
npm install xlsx
Then call alasql function:
var alasql = require(alasql);
alasql('SELECT * INTO XLSX("mydata.xlsx",{headers:true}) \
FROM JSON("mydata.json")');
var cities = [{City:'London',Population:2500000},{City:"Paris",Population:2000000}];
alasql("SELECT * INTO XLSX("mydata.xlsx",{headers:true}) FROM ?",[cities]);
See more examples in this demo file.

Answer 3

There are a lot of modules that can do it. But if you want to control the formatting of xlsx file, then I suggest you use this below code. Rows contain data in the form of JSON array.
var excel = require('node-excel-export');
var styles = {
headerDark: {
fill: {
fgColor: {
rgb: 'FF000000'
}
},
font: {
color: {
rgb: 'FFFFFFFF'
},
sz: 14,
bold: true,
underline: true
}
},
cellPink: {
fill: {
fgColor: {
rgb: 'FFFFCCFF'
}
}
},
cellGreen: {
fill: {
fgColor: {
rgb: 'FF00FF00'
}
}
}
};
var specification = {
"Col1": {
"displayName": 'Col1Name',
"headerStyle": styles.headerDark,
"width": 250
},
"Col2": {
"displayName": 'Col2Name',
"headerStyle": styles.headerDark,
"width": 215
},
"Col3": {
displayName: 'Col3Name',
headerStyle: styles.headerDark,
width: 150
}
}
var report = excel.buildExport(
[{
name: 'Report.xlsx',
specification: specification,
data: rows
}]
);