refactor: Remove express-csv dependency

website/src/controllers/api-v2/challenges.js

@@ -8,7 +8,7 @@ var User = require('./../../models/user').model;
 var Group = require('./../../models/group').model;
 var Challenge = require('./../../models/challenge').model;
 var logging = require('./../../libs/logging');
-var csv = require('express-csv');
+var csvStringify = require('csv-stringify');
 var utils = require('../../libs/utils');
 var api = module.exports;
 var pushNotify = require('./../pushNotifications');
@@ -112,9 +112,17 @@ api.csv = function(req, res, next) {
       })
       output.push(uData);
     });
-    res.header('Content-disposition', 'attachment; filename='+cid+'.csv');
-    res.csv(output);
-    challenge = cid = null;
+
+    res.set({
+      'Content-Type': 'text/csv',
+      'Content-disposition': `attachment; filename=${cid}.csv`,
+    });
+
+    csvStringify(output, (err, csv) => {
+      if (err) return next(err);
+      res.status(200).send(csv);
+      challenge = cid = null;
+    });
   })
 }
 

website/src/controllers/api-v2/coupon.js

@@ -1,7 +1,7 @@
 var _ = require('lodash');
 var Coupon = require('./../../models/coupon').model;
 var api = module.exports;
-var csv = require('express-csv');
+var csvStringify = require('csv-stringify');
 var async = require('async');
 
 api.ensureAdmin = function(req, res, next) {
@@ -21,10 +21,18 @@ api.getCoupons = function(req,res,next) {
   if (req.query.limit) options.limit = req.query.limit;
   if (req.query.skip) options.skip = req.query.skip;
   Coupon.find({},{}, options, function(err,coupons){
-    //res.header('Content-disposition', 'attachment; filename=coupons.csv');
-    res.csv([['code']].concat(_.map(coupons, function(c){
+    let output = [['code']].concat(_.map(coupons, function(c){
       return [c._id];
-    })));
+    }))
+
+    res.set({
+      'Content-Type': 'text/csv',
+      'Content-disposition': `attachment; filename=habitica-coupons.csv`,
+    });
+    csvStringify(output, (err, csv) => {
+      if (err) return next(err);
+      res.status(200).send(csv);
+    });
   });
 }