javascript - Download text/csv content as files from server in Angular

Question

I am trying to stream a csv file from a node.js server. The server portion is very simple :

server.get('/orders' function(req, res) {
  res.setHeader('content-type', 'text/csv');
  res.setHeader('content-disposition', 'attachment; filename='orders.csv');
  return orders.pipe(res); // assuming orders is a csv file readable stream (doesn't have to be a stream, can be a normal response)
}

In my angular controller I am trying to do something like this

$scope.csv = function() {
    $http({method: 'GET', url: '/orders'});
};

This function is called when there's a click on a button with ng-click in my view :

<button ng-click="csv()">.csv</button>

I have looked at other answers about downloading files from server in Angular, but didn't find anything that worked for me. Is there a common way to do this ? Seems like something that should be simple.

Answer 1

$http service returns a promise which has two callback methods as shown below.

$http({method: 'GET', url: '/someUrl'}).
  success(function(data, status, headers, config) {
     var anchor = angular.element('<a/>');
     anchor.attr({
         href: 'data:attachment/csv;charset=utf-8,' + encodeURI(data),
         target: '_blank',
         download: 'filename.csv'
     })[0].click();

  }).
  error(function(data, status, headers, config) {
    // handle error
  });