Module factory is not returning data - angularjs

I am trying to read JSON reply from server. You can find my code here.
https://github.com/ameyjah/feeder
In firefox firebug, I can see that server has returned JSON reply but when I store that into $scope.variable, I am not able to access that information.
Module code
var res
angular.module('myApp.services', ['ngResource'])
.factory('feedFetcher', ['$resource',
function($resource) {
var actions = {
'sites': {method:'GET', params: { action:"sites"} ,isArray:false},
'feeds': {method:'GET', params: { action:"sites"} ,isArray:false}
}
res = $resource('/api/:action', {}, actions);
return res
}
]);
Controller code
$scope.sites = feedFetcher.sites().sites;
console.log($scope.sites);
Reply seen in firebug:
{
"sites": [
{
"id": 0,
"title": "google"
},
{
"id": 1,
"title": "yahoo"
}
]
}
I think I have messed up the way I should define my factory but I am not able to identify. Any help would be helpful.

When you call sites() it returns an empty object and initiates an AJAX request, which will populate the "sites" property on that object. I think you should use it like this:
$scope.results = feedFetcher.sites();
console.log($scope.results.sites); // will be undefined as AJAX not complete
Then in your html you can use the results and they will be filled in when AJAX completes, or watch for it:
$scope.$watch('results.sites', function() {
// this will be called twice, once initially
// and again whenever it is changed, aka when AJAX completes
console.log($scope.results.sites);
};

Related

How can I save JSON data from an API service to cache?

I call the API service from the backend side. I want to save the JSON return data to the cache. What should I do? Is my format wrong?
The snippet code here:
// var localData = [];
var service = {
search: function(requestId) {
return $http.get('/api/mace/getRequest', {
params: {
id: requestId
},
cache:true
});
},
return service
I can't see that there's something wrong with your code. You did correctly set the cache variable to true in the http-call as described in the documentation from AngularJS.
$http.get(url, {
cache: true
}
You should get your JSON by calling your service function and waiting for the promise:
yourService.search(yourRequestId).then(function(response) {
console.log('result', response.data);
});

need to declare all the error messages globally in a property file

I need to declare all the error message like (401,200 etc....) in a property file, need to access them later where ever its required
in the below format mostly
key=messsage
404 = This request caon't be processed
200 = your request is successfull
Is it posssible in angular ifso could any body give me an idea, thank u
======================================================================
I think ... it is possible. lol !
You can declare global value via JSON file. (keep it on your server)
See the JSON format here.
Example:
globalvalue.json
[
{
"key": 404,
"message": "This request caon't be processed"
},
{
"key": 200,
"message": "your request is successfull"
}
]
And next you just read that global value via your server it store the JSON file.
Angular Code:
angular
.module('app.services', [])
.factory('Friend', function ($http) {
return {
get: function () {
return $http.get('/globalvalue.json');
}
};
});
Then use your factory this way:
.angular
.module('app.controllers', ['app.services'])
.controller('yourCtrl', function ($scope, Friend) {
Friend.get().then(function (msg) {
$scope.msg = msg;
});
});
Cr. Reading data from JSON file in Angularjs.
let's fun. :)

Angular return promise from httpBackend.when()

How do you return a promise from httpBackend.when()? I wanted to load some canned data stored in a .json file and return that from httpBackend.whenGET(). When I try to return the promise from http.get('mydata.json') the response is returned to the failure callback of the factory.
function getAvailablePackagesComplete(response) {
return response.data;
}
function getAvailablePackagesFailed(error) { // {error = Object {data: undefined, status: 0, config: Object, statusText: ""}
$log.error(error.data.description);
return false;
}
function getAvailablePackages() {
return $http.get('/1.0/get-available-packages')
.then(getAvailablePackagesComplete)
.catch(getAvailablePackagesFailed)
}
var data = {"package": "test", "version": "1"}
$httpBackend.whenGET('/1.0/get-available-packages').respond(function(method, url, data) {
// return [200,data, {}] // this works
return $http.get('app/home/fixtures/mydata.json'); // contains {"package: "test", "version": "1"}
}); //this doesn't work
As it is currently, $httpBackend (from ngMockE2E) does not support promises within its .respond - See AngularJS GitHub Issue #11245. As $httpBackend should be used to avoid making real HTTP requests, but you could let some requests pass through.
From AngularJS Docs:
This implementation can be used to respond with static or dynamic responses via the when api and its shortcuts (whenGET, whenPOST, etc) and optionally pass through requests to the real $httpBackend for specific requests (e.g. to interact with certain remote apis or to fetch templates from a webserver).
To work around what you're trying to do though, you could try to have getAvailablePackages() return the HTTP GET for your json file path and defining an $httpBackend.whenGET('pathTo.json').passThrough();
I was hitting the same issue and my use case was building a mock of my entire API in JS so that other people could work off line and develop the UI.
To achieve that I have developed a plugin called angular-mocks-async which decorates the httpBackend and adds the .whenAsync( ) APi to it. Than you can easily mock responses and return promises like so:
var app = ng.module( 'mockApp', [
'ngMockE2E',
'ngMockE2EAsync'
]);
app.run( [ '$httpBackend', '$q', function( $httpBackend, $q ) {
$httpBackend.whenAsync(
'GET',
new RegExp( 'http://api.example.com/user/.+$' )
).respond( function( method, url, data, config ) {
var re = /.*\/user\/(\w+)/;
var userId = parseInt(url.replace(re, '$1'), 10);
var response = $q.defer();
setTimeout( function() {
var data = {
userId: userId
};
response.resolve( [ 200, "mock response", data ] );
}, 1000 );
return response.promise;
});
}]);
You can return promises from http interceptors. Here is an example of delaying an HTTP call for 1 second. You can add this in your app.config(....)
$httpProvider.interceptors.push(function($q, $timeout) {
return {
'response': function(response) {
var defer = $q.defer();
$timeout(function() {
defer.resolve(response);
}, 1000);
return defer.promise;
}
};
});

unable to display the http get response from the factory in controller in Angularjs application

In my service I making http get request as shown below:
.factory('InvoicesGeneralService', function ($http) {
return {
getAgreementsByCourierId: function (courierId) {
console.log("Courier in Services" + courierId);
return $http.get('/api/agreements/byCourierId', {params: {courierId: courierId}}).then(function (response) {
return response;
});
}
};
});
And in browser console I am seeing the following response :
[
{
"id":3,
"number":"AGR53786",
"ediNumber":"EDI7365",
"startDate":"2012-09-02",
"endDate":"2018-07-01",
"courier":{
"id":2,
"name":"FedEx",
"url":"www.fedex.com",
"isActive":true,
"isParcel":true
},
"client":{
"id":4,
"code":"KJGTR",
"name":"Hearty",
"isActive":true,
"engageDate":"2011-07-07",
"isSendRemittance":true,
"upsUserName":"Tkd",
"upsPassword":"kuu",
"isEligibleForTracking":true,
"isEligibleForAuditing":true,
"status":5
}
}
]
And in my controller I am assigning it to result List :
$scope.resultList = InvoicesGeneralService.getAgreementsByCourierId(selCourierId);
But my resultList is always appearing as Empty. Can any one help me, why it is happening?
When I am trying to display resultList as shown below, it always shows empty object, {}. It supposed to display the response json array from the service but it is showing empty object.
<pre class="code"> {{resultList | json}}</pre>
$http returns a promise. Anything consuming that data needs to handle it like a promise too.
InvoicesGeneralService.getAgreementsByCourierId(selCourierId).then(function(data) {
$scope.resultList = data;
});
Also, your factory's then function is not doing anything at the moment. You should return the response's data from it.
return $http.get('/api/agreements/byCourierId', {params: {courierId: courierId}}).then(function (response) {
return response.data;
});

Passing 'filter' parameter to angular resource (DreamFactory rest api)

I am having an issue with query parameters from my AngularJS app
I am reading documents from MongoDB using DreamFactory rest api like this:
.service('Servant', ['$resource', function($resource) {
// define and return $resource
return $resource('https://mydsp.cloud.dreamfactory.com:443/rest/mongodb/tablename',
{
// set params to bind too
app_name: 'myapp',
fields: '#fields',
limit: '#limit',
offset: '#offset',
filter: '#filter'
},
{
// set update method to 'PUT'
update: {
method: 'PUT'
}
}
)
}]);
This all works great when I set filter like "parameter=value" but I failed to find a way of passing more complicated filter param in JSON format as described here, using $in parameter etc. Does anyone know the right syntax for this?
EDIT:
just tried something like
filter = angular.toJson("{'parameter':{$in:['value1','value2']}}")
with no success...
First...drop the port from your service url. 'https' for dreamfactory specifies port 443. No need for you to do it explicitly. Second...You should be able to pass a SQL style filter as a string in your params. When you set up your $resource the way you have you should be able to pass a params object to it. No need to stringify or toJson anything. DreamFactory should handle it. For example...
Here is your service:
.service('Servant', ['$resource', function($resource) {
return $resource('https://mydsp.cloud.dreamfactory.com/rest/mongodb/tablename',
{
app_name: 'myapp',
fields: '#fields',
limit: '#limit',
offset: '#offset',
filter: '#filter'
},
{
update: {
method: 'PUT'
}
}
}]);
Calling that service with a params object:
// the 'parameter' value in our filter string should relate to a field and/or property
scope.paramsObj = {
fields: '*',
limit: 10,
offset: 0,
filter: 'parameter in (5,15)'
}
// call service and handle promise returned by $resource
Servant.get(scope.paramsObj).then(
function(result) {
// handle success
// like assign to a var or something
// here we just log it
console.log(result)
},
function(error) {
// handle error
// probably should throw an error here
// but we just log it here
console.log(error);
});
EDIT
Ok. So...it should work with SQL style filter strings. An issue has been logged with DreamFactory. In the mean time you can create a custom $resource action to handle the filters and tunnel your GET request through a POST. Easier then it sounds. See code below.
Here is the service with custom action
.service('Servant', ['DSP_URL', '$resource', function (DSP_URL, $resource) {
return $resource(DSP_URL + '/rest/mongohq/Colors', {
// params to bind to
app_name: YOUR_APP_NAME_HERE,
fields: '#fields',
limit: '#limit',
offset: '#offset'
}, {
// custom $resource action
'getFiltered': {
// set our method to post because we have to post
// our filter object
method: 'POST',
// We can transform the data before the post.
// In the circumstance we do need to stringify
// So that's what we do here.
transformRequest: function (data) {
return JSON.stringify(data);
}
}
})
}]);
Here is the controller:
.controller('MongoCtrl', ['$scope', 'Servant', function ($scope, Servant) {
// Create a params object
// This requests all fields.
// And we explicitly set the method to
// GET. We are tunneling a GET request
// through our POST because our filter
// needs to be posted but we really want a GET.
$scope.params = {
fields: '*',
method: 'GET'
};
// Call our Service with our custom $resource action
Servant.getFiltered(
// Send our params
$scope.params,
// Send our filter as post data
{
"filter": {
"color": {
"$in": ["blue", "white"]
}
}
},
// handle success
function (data) {
console.log(data)
},
// handle error
function (error) {
console.log(error)
})
}])
I guess you should stringify your filter data:
resource.update( {
filter: JSON.stringify( {qty:{$in:[5,15]}} )
});
Or in this way:
resource.get({id:123}, function() {
resource.filter = JSON.stringify( {qty:{$in:[5,15]}} );
resource.$update();
});

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