How to load json into my angular.js ng-model?

As Kris mentions, you can use the $resource service to interact with the server, but I get the impression you are beginning your journey with Angular - I was there last week - so I recommend to start experimenting directly with the $http service. In this case you can call its get method.

If you have the following JSON

[{ "text":"learn angular", "done":true }, { "text":"build an angular app", "done":false}, { "text":"something", "done":false }, { "text":"another todo", "done":true }]

You can load it like this

var App = angular.module('App', []);App.controller('TodoCtrl', function($scope, $http) {  $http.get('todos.json')       .then(function(res){          $scope.todos = res.data;                        });});

The get method returns a promise object whichfirst argument is a success callback and the second an errorcallback.

When you add $http as a parameter of a function Angular does it magicand injects the $http resource into your controller.

I've put some examples here

• http://plnkr.co/edit/Wuc6M7?p=preview
• https://gist.github.com/3938567

Here's a simple example of how to load JSON data into an Angular model.

I have a JSON 'GET' web service which returns a list of Customer details, from an online copy of Microsoft's Northwind SQL Server database.

http://www.iNorthwind.com/Service1.svc/getAllCustomers

It returns some JSON data which looks like this:

{     "GetAllCustomersResult" :         [            {              "CompanyName": "Alfreds Futterkiste",              "CustomerID": "ALFKI"            },            {              "CompanyName": "Ana Trujillo Emparedados y helados",              "CustomerID": "ANATR"            },            {              "CompanyName": "Antonio Moreno Taquería",              "CustomerID": "ANTON"            }        ]    }

..and I want to populate a drop down list with this data, to look like this...

I want the text of each item to come from the "CompanyName" field, and the ID to come from the "CustomerID" fields.

How would I do it ?

My Angular controller would look like this:

function MikesAngularController($scope, $http) {    $scope.listOfCustomers = null;    $http.get('http://www.iNorthwind.com/Service1.svc/getAllCustomers')         .success(function (data) {             $scope.listOfCustomers = data.GetAllCustomersResult;         })         .error(function (data, status, headers, config) {             //  Do some error handling here         });}

... which fills a "listOfCustomers" variable with this set of JSON data.

Then, in my HTML page, I'd use this:

<div ng-controller='MikesAngularController'>    <span>Please select a customer:</span>    <select ng-model="selectedCustomer" ng-options="customer.CustomerID as customer.CompanyName for customer in listOfCustomers" style="width:350px;"></select></div>

And that's it. We can now see a list of our JSON data on a web page, ready to be used.

The key to this is in the "ng-options" tag:

customer.CustomerID as customer.CompanyName for customer in listOfCustomers

It's a strange syntax to get your head around !

When the user selects an item in this list, the "$scope.selectedCustomer" variable will be set to the ID (the CustomerID field) of that Customer record.

The full script for this example can be found here:

JSON data with Angular

Mike

I use following code, found somewhere in the internet don't remember the source though.

    var allText;    var rawFile = new XMLHttpRequest();    rawFile.open("GET", file, false);    rawFile.onreadystatechange = function () {        if (rawFile.readyState === 4) {            if (rawFile.status === 200 || rawFile.status == 0) {                allText = rawFile.responseText;            }        }    }    rawFile.send(null);    return JSON.parse(allText);