AngularJs ReferenceError: $http is not defined
Probably you haven't injected $http service to your controller. There are several ways of doing that.
Please read this reference about DI. Then it gets very simple:
function MyController($scope, $http) { // ... your code}
I have gone through the same problem when I was using
myApp.controller('mainController', ['$scope', function($scope,) { //$http was not working in this }]);I have changed the above code to given below. Remember to include $http(2 times) as given below.
myApp.controller('mainController', ['$scope','$http', function($scope,$http) { //$http is working in this }]);and It has worked well.
Just to complete Amit Garg answer, there are several ways to inject dependencies in AngularJS.
You can also use $inject to add a dependency:
var MyController = function($scope, $http) { // ...}MyController.$inject = ['$scope', '$http'];