update lib

README.md

@@ -12,10 +12,10 @@ Converting xlsx file to json files using nodejs (js-xlsx)
 ## Usage
 
 ```javascript
-  xlsxj = require("am-xlsx2json");
-  xlsxj({
-    input: "sample.xlsx",
-    output: "output.json"
+  am_xlsx2json = require("am-xlsx2json");
+  am_xlsx2json({
+    input: "sample.xlsx", // path of excel file / uploaded file
+    output: "output.json" // if  set  it will write to file
   }, function(err, result) {
     if(err) {
       console.error(err);
@@ -30,10 +30,10 @@ Converting xlsx file to json files using nodejs (js-xlsx)
 You can optionally provide a sheet name to extract from that sheet
 
 ```javascript
-  xlsxj = require("am-xlsx2json");
-  xlsxj({
-    input: "sample.xlsx",
-    output: "output.json",
+  am_xlsx2json = require("am-xlsx2json");
+  am_xlsx2json({
+    input: "sample.xlsx", // path of excel file / uploaded file
+    output: "output.json" // if  set  it will write to file
     sheet: "tags"
   }, function(err, result) {
     if(err) {

example/example.js

+var am_xlsx2json = require('../')
+
+am_xlsx2json({
+  input: __dirname + '/testExcel.xlsx',
+  output: __dirname + '/testExcel.json'
+}, function(err, result) {
+  if(err) {
+    console.error(err);
+  }else {
+    console.log(result);
+  }
+});

example/testExcel.json

+[{"Harga":"3000","Nama":"Jus Mangga"},{"Harga":"4000","Nama":"Jus Strawberry"}]
\ No newline at end of file

index.js

-index.js
+var am_xlsx2json = require('./lib');
+
+module.exports = am_xlsx2json;
\ No newline at end of file

lib/index.js

+var fs = require('fs');
+var xlsx = require('xlsx');
+var cvcsv = require('csv');
+var mime = require('mime');
+exports = module.exports = XLSX_json;
+
+var excelMimeType = ['application/vnd.openxmlformats-officedocument.spreadsheetml.sheet', 'application/vnd.ms-excel']
+
+function XLSX_json(config, callback) {
+    var extInput = mime.lookup(config.input);
+
+    if (excelMimeType.indexOf(extInput) > -1) {
+        if (!config.input) {
+            console.error("You miss a input file");
+            process.exit(1);
+        }
+        var cv = new CV(config, callback);
+    } else {
+        console.error("Input file not supported");
+        process.exit(1);
+    }
+
+}
+
+function CV(config, callback) {
+    var wb = this.load_xlsx(config.input)
+    var ws = this.ws(config, wb);
+    var csv = this.csv(ws)
+    this.cvjson(csv, config.output, callback)
+}
+
+CV.prototype.load_xlsx = function(input) {
+    return xlsx.readFile(input);
+}
+
+CV.prototype.ws = function(config, wb) {
+    var target_sheet = config.sheet;
+    if (target_sheet == null)
+        target_sheet = wb.SheetNames[0];
+    ws = wb.Sheets[target_sheet];
+    return ws;
+}
+
+CV.prototype.csv = function(ws) {
+    return csv_file = xlsx.utils.make_csv(ws)
+}
+
+CV.prototype.cvjson = function(csv, output, callback) {
+    var record = []
+    var header = []
+    cvcsv()
+        .from.string(csv)
+        .transform(function(row) {
+            row.unshift(row.pop());
+            return row;
+        })
+        .on('record', function(row, index) {
+            if (index === 0) {
+                header = row;
+            } else {
+                var obj = {};
+                header.forEach(function(column, index) {
+                    obj[column.trim()] = row[index].trim();
+                })
+                record.push(obj);
+            }
+        })
+        .on('end', function(count) {
+            if (output !== null) {
+                var stream = fs.createWriteStream(output, {
+                    flags: 'w'
+                });
+                stream.write(JSON.stringify(record));
+                callback(null, record);
+            } else {
+                callback(null, record);
+            }
+        })
+        .on('error', function(error) {
+            console.error(error.message);
+        });
+}

package.json

@@ -9,7 +9,8 @@
   "author": "Aksimaya Dev",
   "license": "ISC",
   "dependencies": {
-    "csv": "^0.4.6",
+    "csv": "^0.3.6",
+    "mime": "^1.3.4",
     "xlsx": "^0.8.0"
   },
   "devDependencies": {