angularjs - Error: [$resource:badcfg] Error in resource configuration for action `query`. Expected response to contain an array but got an object -

i new mean stack development , started yesterday. trying data database call using resource linked server side controller. receiving following console error "error: [$resource:badcfg] error in resource configuration action query. expected response contain array got object"

angular controller:

app.     controller('articlectrl',  function($scope, $location, $resource){          var articles = $resource('/api/articles');          articles.query(function(result){              console.log(result);          });          $scope.addnew = function(){              $location.path("/administrationarea/articles/newarticle");          }       }); 

server.js:

articlescontroller = require('./server/controller/article-controller');  app.get('/api/articles', articlescontroller.list); app.post('/api/articles', articlescontroller.create); 

server side controller:

var article = require('../models/articlemodel');  module.exports.create = function(req, res){      var art = new article(req.body);     art.save( function (err, result){          res.json(result);      });  }   module.exports.list = function(req, res){      article.find({}, function (err, results){          res.json(results);      });  } 

can tell me why might happening , maybe offer solution data returned array instead of object.

the error because

var articles = $resource('api/articles'); articles.query(function(result){     // here result should array.         console.log(result);  }); 

here articles.query expects array. not object.

if api returns object should use articles.get().

articles.get(function(result){    // here result should object not array         console.log(result);     }); 

$resource.query() used getting array rest api , $resource.get() used getting object rest api. in both cases request type(/method) 'get' only.

please refer angularjs documentation