我尝试构建一项服务,在服务经过身份验证后返回 $ resource 。 我这样做了:
.factory('MoltinApi', ['$q', '$resource', '$http', 'moltin_options', 'moltin_auth', function ($q, $resource, $http, options, authData) {
var api = $resource(options.url + options.version + '/:path', {
path: '@path'
});
var authenticate = function () {
if (!options.publicKey)
return;
var deferred = $q.defer();
var request = {
method: 'POST',
url: options.url + 'oauth/access_token',
headers: {
'Content-Type': 'application/x-www-form-urlencoded'
},
data: "grant_type=implicit&client_id=" + options.publicKey
};
$http(request).success(function (response) {
authData = response;
deferred.resolve(api);
});
return deferred.promise;
};
return authenticate();
}])
但我无法在控制器中调用该资源:
.controller('HomeController', ['MoltinApi', function (moltin) {
var self = this;
moltin.get({ path: 'categories' }, function (categories) {
console.log(categories);
});
}]);
它只是声明'undefined不是一个函数'。 有人能告诉我我做错了吗?
更新1
因此,在使用建议的解决方案之后,这就是结果。
angular.module('moltin', ['ngCookies'])
// ---
// SERVICES.
// ---
.factory('MoltinApi', ['$cookies', '$q', '$resource', '$http', 'moltin_options', function ($cookies, $q, $resource, $http, options) {
var api = $resource(options.url + options.version + '/:path', {
path: '@path'
});
var authenticate = function () {
if (!options.publicKey)
return;
var deferred = $q.defer();
var authData = angular.fromJson($cookies.authData);
if (!authData) {
console.log('from api');
var request = {
method: 'POST',
url: options.url + 'oauth/access_token',
headers: {
'Content-Type': 'application/x-www-form-urlencoded'
},
data: "grant_type=implicit&client_id=" + options.publicKey
};
deferred.resolve($http(request).success(function (response) {
$cookies.authData = angular.toJson(response);
setHeaders(response.access_token);
}));
} else {
console.log('from cookie');
deferred.resolve(setHeaders(authData.access_token));
}
return deferred.promise;
};
var setHeaders = function (token) {
$http.defaults.headers.common['Authorization'] = 'Bearer ' + token;
}
return authenticate().then(function (response) {
return api;
});
}]);
并称之为我必须这样做:
.controller('HomeController', ['MoltinApi', function (moltin) {
var self = this;
moltin.then(function (api) {
api.get({ path: 'categories' }, function (categories) {
console.log(categories);
self.sports = categories.result;
});
});
}]);
但我想做的是:
.controller('HomeController', ['MoltinApi', function (moltin) {
var self = this;
moltin.get({ path: 'categories' }, function (categories) {
console.log(categories);
}, function (error) {
console.log(error);
});
}]);
如您所见,该服务正在检查我们是否在返回API之前已经过身份验证。一旦经过身份验证,就会返回API,然后用户可以调用api而无需再次进行身份验证。 有人可以帮我重构这项服务,所以我可以在不必 moltin.then()的情况下调用它吗?
答案 0 :(得分:0)
您将在MoltinApi工厂中返回authenticate函数调用,因此您将返回promise。并且方法get在promise
中不存在