How can I convert the following code service that uses $resource to use $http?
angular.module('myApp')
.factory('MyService', function ($resource) {
var url = "..";
return $resource("", {},
{
'servizio1': { method: "GET", url: basePath },
'servizio2': { method: "POST", url: url, data: {} },
'servizio3': { method: "POST", url: url, data: {} }
}
});
Thanks in advance.
First to your question, try something like:
angular.module('myApp')
.factory('MyService', function ($http) {
var url = "..";
var basePath = "...";
return {
servizio1: function(){ return $http.get(basePath); },
servizio2: function(data){ return $http.post(url, data); }
}
});
Call it with:
var returnValue = (new MyService()).servizio1.then(function(data){...})
But actually you could also use the $resource API and do something like:
angular.module('myApp')
.factory('MyService', function ($resource) {
var url = "..";
return $resource(url,{}, {
saveIt: {
method: 'POST',
params: {url: basePath}
}
});
adn call this with
MyService.get({}, function(data){...});
MyService.saveIt({}, postData, function(){success...}, function(){error...});
Check out AngularJS docs for more
Related
I have 2 factories: ApiService and LocationService.
In ApiService i'd like to return the endpoint from an $http call that LocationService will use.
But it seems when the controller calls LocationService, it doesn't wait for the response from ApiService. Here is some snippet of code, in ApiService when I finally get it working I will cache it so I won't need to make a server call each time to get the endpoint:
services.factory("ApiService", ["$location", "$http", function ($location, $http) {
return {
getEndpointUrl: function () {
var endpoint;
$http({
method: 'GET',
url: '/site/apiendpoint'
}).then(function successCallback(response) {
endpoint = response.data;
console.log(endpoint);
return endpoint;
}, function errorCallback(response) {
console.error('Error retrieving API endpoint');
});
}
}
}]);
Here is the location service, it consumes ApiService:
services.factory("LocationService", ["$resource", "ApiService", function ($resource, apiService) {
var baseUri = apiService.getEndpointUrl();
return $resource(baseUri + '/location', {}, {
usStates: { method: 'GET', url: baseUri + '/location/us/states' }
});
}]);
When my controller tries to call LocationService.usStates the baseUri is undefined. What am I doing wrong here?
The reason is because your getEndpointUrl function is asynchronous, and it has no return value.
Since your LocationService uses $resource and depends on on the baseUri, I would suggest bootstrapping that data along with the initial page load and making it a constant like:
angular.module('yourModule').constant('baseUrl', window.baseUrl);
Then your service would inject it to create your resource:
services.factory("LocationService", ["$resource", "ApiService", "baseUrl", function ($resource, apiService, baseUrl) {
return $resource(baseUrl + '/location', {}, {
usStates: { method: 'GET', url: baseUrl + '/location/us/states' }
});
}]);
In ApiService, you're not actually returning a value from getEndpointUrl(). How about you return a promise from ApiService, and then consume that in LocationService in a synchronous fashion?
services.factory("ApiService", ["$location", "$http", function($location, $http) {
return {
getEndpointUrl: function() {
var endpoint;
return $http({
method: 'GET',
url: '/site/apiendpoint'
});
}
}
}]);
services.factory("LocationService", ["$resource", "ApiService", function($resource, apiService) {
return {
getLocations: function() {
return apiService.getEndpointUrl().then(function successCallback(response) {
var baseUri = response.data;
return $resource(baseUri + '/location', {}, {
usStates: { method: 'GET', url: baseUri + '/location/us/states' }
});
}, function errorCallback(response) {
console.error('Error retrieving API endpoint');
});
}
};
}]);
And then in your controller:
LocationService.getLocations().then(function(data) {
$scope.statesResult = data.result.states;
});
How can I define a dynamic factory in such a way that the URL is passed from the controller without using $rootScope?
.factory('getData', function ($resource,$rootScope) {
return $resource($rootScope.url, {id:'#id'}{
'query': { method: 'GET', isArray: true},
'get': {
method: 'GET',
isArray: true,
transformResponse: function (data) {
data = angular.fromJson(data);
return data;
}
}
});
})
Controller
var data = [];
$rootScope.url='/userDetails/userId?userId=userID'
getData.get({id:'123'}).$promise.then(function(data){
angular.forEach(data,function(dataVal){
//
},data)
You should create a function in your factory and then pass the URL and id as parameters to that function when you invoke it.
For your code the factory should look something like this:
.factory('getData', function($resource, $rootScope) {
return {
query: function(url, id){
return $resource(url, {userId: id}, {
'query': {
method: 'GET',
isArray:true
},
'get': {
method: 'GET',
isArray:true,
transformResponse: function(data) {
console.log(data);
data = angular.fromJson(data);
return data;
}
}
}).get();
}
}
})
And then you would invoke it like this getData.query(url,id) in the controller.
i' using AngularJS v1.4.2. i have 2 html page , they have 2 controller.both controller have save event. how to use use http post method
first controller i'm calling post method given below
var promisePost = crudService.post(Countries);
promisePost.then(function (pl) {
alert("Sucessfully Inserted")
getCountry();
$stateParams.country = "";
}, function (err) {
alert("NOt Inserted")
});
second controller i'm calling post method given below
var promisePost = crudService.post(Levels);
promisePost.then(function (pl) {
alert("Sucessfully Inserted")
getLevel();
}, function (err) {
alert("NOt Inserted")
});
my app.js
myapp.service('crudService', function ($http, RESOURCES) {
//Create new record
this.post = function (Country) {
var request = $http({
method: "post",
url: RESOURCES.baseUrl + "saveCountry",
data: Country
});
return request;
}
this.post = function (Level) {
var request = $http({
method: "post",
url: RESOURCES.baseUrl + "saveLevel",
data: Level
});
return request;
}
});
but this code only take last post method.How to selecet post method properly. Anyone can helpme?
User countryPost and levelPost as follows and call those accordingly.
myapp.service('crudService', function ($http, RESOURCES) {
//Create new record
this.countryPost= function (Country) {
var request = $http({
method: "post",
url: RESOURCES.baseUrl + "saveCountry",
data: Country
});
return request;
}
this.levelPost= function (Level) {
var request = $http({
method: "post",
url: RESOURCES.baseUrl + "saveLevel",
data: Level
});
return request;
}
});
The best practice for using services is to return an object from it
myapp.factory('crudService', function ($http, RESOURCES) {
return {
saveCountry : function(){
return $http({
method: "post",
url: RESOURCES.baseUrl + "saveCountry",
data: Country
});
},
saveLevel : function(){
return $http({
method: "post",
url: RESOURCES.baseUrl + "saveLevel",
data: Level
});
}
}
});
then inject it into your controller dependencies and use it like :
crudService.saveLevel().then(function(){
//do some code here
})
Create a single post method instead and receive the url to call in it as parameter along with the data. As shown below:
this.post = function (data, remainingUrl) {
var request = $http({
method: "post",
url: RESOURCES.baseUrl + remainingUrl,
data: data
});
return request;
}
I have this service :
(function() {
'use strict';
angular
.module('myApp')
.factory('Consultant', Consultant);
Consultant.$inject = ['$resource', 'DateUtils'];
function Consultant ($resource, DateUtils) {
var resourceUrl = 'api/consultants/:id';
return $resource(resourceUrl, {}, {
'query': { method: 'GET', isArray: true},
'get': {
method: 'GET',
transformResponse: function (data) {
data = angular.fromJson(data);
return data;
}
},
'update': {
method: 'PUT',
transformRequest: function (data) {
return angular.toJson(data);
},
transformResponse: function (data) {
data = angular.fromJson(data);
return data;
}
},
'save': {
method: 'POST',
transformRequest: function (data) {
return angular.toJson(data);
},
transformResponse: function (data) {
data = angular.fromJson(data);
return data;
}
}
});
}
})();
What if I want to add the url api/consultantscustom/:id (with its query/get/update methods) to this service?
As it seems that this file can contain only one factory, is there a way to do that or do I need to create another file with a new factory?
Maybe I am totally misunderstanding what you are asking, but you can have as many factories in one file as you like (or as seems useful):
(function() {
'use strict';
angular.module('myApp')
.factory('Consultant', Consultant)
.factory('Custom', Custom);
Consultant.$inject = ['$resource', 'DateUtils'];
Custom.$inject = ['$resource'];
function Consultant ($resource, DateUtils) {
var resourceUrl = 'api/consultants/:id';
...
}
function Custom ($resource) {
var resourceUrl = 'api/consultantscustom/:id';
...
}
Or, if you want to re-use the same factory to access different URLs, you could add methods to set the URL and then re-use the call to the generic resource.
function Consultant ($resource, DateUtils) {
function consultants () {
_call_resource('api/consultants/:id');
}
function custom () {
_call_resource('api/consultantscustom/:id');
}
function _call_resource (resourceUrl) {
return $resource(resourceUrl, {}, {
...
}
}
this.consultants = consultants;
this.custom = custom;
return this;
}
I have some code in my controller that was directly calling $http to get data.
Now I would like to move this into a service. Here is what I have so far:
My service:
angular.module('adminApp', [])
.factory('TestAccount', function ($http) {
var TestAccount = {};
TestAccount.get = function (applicationId, callback) {
$http({
method: 'GET',
url: '/api/TestAccounts/GetSelect',
params: { applicationId: applicationId }
}).success(function (result) {
callback(result);
});
};
return TestAccount;
});
Inside the controller:
TestAccount.get(3, function (data) {
$scope.testAccounts = data;
})
How can I change this so rather than passing the result of success back it
passes back a promise that I can check to see if it succeeded or failed?
Make your service to return a promise and expose it to service clients. Change your service like so:
angular.module('adminApp', [])
.factory('TestAccount', function ($http) {
var TestAccount = {};
TestAccount.get = function (applicationId) {
return $http({
method: 'GET',
url: '/api/TestAccounts/GetSelect',
params: { applicationId: applicationId }
});
};
return TestAccount;
});
so in a controller you can do:
TestAccount.get(3).then(function(result) {
$scope.testAccounts = result.data;
}, function (result) {
//error callback here...
});