如何使用AngularJS指令从表单发送带有所有参数的POST请求?
我制作了一个通过指令集成Stripe的AngularJS表单.在这里提琴: https://jsfiddle.net/u5h1uece/.
I have made an AngularJS form that integrates Stripe thru a directive. Fiddle here: https://jsfiddle.net/u5h1uece/.
HTML:
<body ng-app="angularjs-starter">
<script src="https://js.stripe.com/v3/"></script>
<div ng-controller="MainCtrl">
<form name="regForm" id="register-form">
<label>Mail</label>
<input ng-model="reg.email" type="email" name="username">
<div stripe-validator
stripe-complete="stripeCompleted"
stripe-form-id="register-form"></div>
<br>
<button ng-model="reg.btn" ng-disabled="stripeCompleted === false || !regForm.username.$valid">Register</button>
</form>
</div>
</body>
JS:
var app = angular.module('angularjs-starter', []);
app.controller('MainCtrl', function($scope, $rootScope) {
//Init stripe state via controller
$scope.stripeCompleted = false;
});
app.directive('stripeValidator', function() {
return {
restrict: 'A',
template: `
<div id="stripe-wrapper">
<div id="card-element"></div>
</div>
<small id="card-errors" class="text-danger" role="alert">{{ ccErrMsg }}</small>
<input type="hidden" name="stripeToken" ng-value="stripeToken" />`,
scope: {
"stripeComplete": '=',
"stripeFormId": '@',
"stripeError": '=',
"stripeToken": '=',
},
link: function(scope, element, attrs) {
//Init
var stripe = Stripe("pk_test_6pRNASCoBOKtIshFeQd4XMUh");
var elements = stripe.elements();
var card = elements.create("card");
var form = document.getElementById(scope.stripeFormId);
//mount card element https://stripe.com/docs/stripe-js/reference#element-mount
card.mount("#card-element");
//add event listener
card.addEventListener('change', function(event) {
//check for errors
if (event.error) {
scope.ccErrMsg = event.error.message;
} else {
scope.ccErrMsg = '';
}
//check for complete
scope.stripeComplete = event.complete ? true : false;
//apply scope
scope.$apply();
});
//inject form submit event
form.addEventListener("submit", function(event) {
//prevent form submit
event.preventDefault();
//handle token, handle error and form submit forward
stripe.createToken(card).then(function(result) {
if (result.error) {
scope.ccErrMsg = event.error.message;
scope.stripeToken = '';
} else {
scope.ccErrMsg = '';
scope.stripeToken = result.token;
}
//apply scope
scope.$apply();
//forward submit
form.submit();
})
});
}
}
});
我想使用 $ http.post()将表单参数和数据发送到我的后端，而不是使用 form.submit() .then()函数中的任何数据.在这种情况下，参数包括 reg.email 的值.
Instead of using form.submit(), I want to use $http.post() to send the form parameters and data to my backend, then send back any data from there in a .then() function. In this case, the parameters include reg.email's value.
我该如何设置表单?我更喜欢使用 ng-submit ，但是如果不可能，还有另一种方法吗?
How do I do this with the way my form is set up? I'd prefer using ng-submit, but if that's not possible, is there another way?
我建议使用 component 包装带区输入.您可以使该组件与 ng-model 指令一起使用，以将card元素传递回父范围，并将表单验证应用于stripe字段.
I would suggest using a component to wrap the stripe input. You can make this component work with the ng-model directive to pass the card element back to the parent scope as well as apply form validation to the stripe field.
TL; DR-这里是一个小提琴的例子
您要做的第一件事是将条纹对象创建为服务，以便可以共享.
First thing you'll want to do is create your stripe object as a service so it can be shared.
app.service('stripe', function () {
return Stripe("pk_test_6pRNASCoBOKtIshFeQd4XMUh");
});
然后，您可以实现数据条 component 来包装数据条输入并应用自定义的 ng-model 验证.
Then you can implement the stripe component to wrap around the stripe input and apply custom ng-model validation.
app.component('stripe', {
bindings: {
state: '='
},
require: {
model: 'ngModel'
},
controller: function ($element, $timeout, stripe) {
this.$onInit = function () {
var ctrl = this;
// stripe is passed in to controller as a service
var elements = stripe.elements();
var card = elements.create('card');
card.mount($element[0]);
card.addEventListener('change', function (event) {
// Attach the event as the state so it is visible
// to consumers of the stripe component.
ctrl.state = event;
// Set the validity of the stripe on the ng-model
ctrl.model.$setValidity('stripe', event.complete);
// If the stripe is complete set the card element on
// the ng-model, otherwise null out the model value.
if (event.complete) {
ctrl.model.$setViewValue(card);
} else {
ctrl.model.$setViewValue(null);
}
});
}
}
});
然后，在发送HTTP请求之前，在提交表单后，您可以在主控制器中创建条纹令牌.
Then in the main controller you can create the stripe token when the form is submitted before you send off the HTTP request.
app.controller('MainCtrl', function ($scope, $http, stripe) {
$scope.reg = {};
$scope.onChange = function() {
console.log($scope.card);
};
$scope.register = function () {
// Create the stripe token and send the registration
stripe.createToken($scope.card).then(function (result) {
if (result.error) {
console.error(result.error);
} else {
$scope.reg.stripeToken = result.token;
$http.post('request-url', $scope.reg).then(function (response) {
console.log(response);
}).catch(function (err) {
console.error(err);
});
}
});
};
});
现在，您可以简单地将 stripe 元素添加到模板中，如下所示:
Now you can simply add a stripe element to your template as follows:
<div ng-app="angularjs-starter" ng-controller="MainCtrl">
<form name="regForm" id="register-form" ng-submit="register()">
<stripe name="card" ng-model="card" state="cardState" ng-change="onChange()" ng-required="true"></stripe>
<button ng-disabled="regForm.$invalid">Register</button>
<span ng-if="regForm.card.$invalid">{{ cardState.error.message }}</span>
</form>
</div>