Handling Events

Handling actions & events in a billing page

Handling actions
The handleResponse function can be used to update user information in your database regarding the customers subscription information, to do redirects on signup, or present notifications.
Parameters
handleResponse will pass a variable which contains the following properties
Variable Name
Description
event
The name of the event that occurred
response
The response object returned from Stripe
Events
Event Name
Description
Response Object
pre_load
First thing run after the embed javascript loads, before any API calls have been made. Use to inject React components or tell when the embed has loaded.
Embed Configuration
post_load
billingData: null — means the subscription portal is not loaded yet
billingData: {no_user: true} — means the current email is not a customer
productData: null — means pricing (products) are not loaded yet
productData: [ … ] — means the pricing (products) are loaded
billingData
currentConfig
productData
pre_subscribe
This event allows you to do some actions before creating a subscription. For example, you can use it for checking if a user exists in your system.
Throwing an error here will prevent Billflow from creating a subscription. 
email
service
tier
create_subscription
Triggered when a subscription is created from a billing page. Use this event to update your user system with the Stripe subscription ID and tier. Learn more on the install guide.
​Subscription​
change_plan
Triggered when a user upgrades or downgrades using the Plan Picker. You can use this to update their tier information or create notifications.
​Subscription​
select_plan
Triggered when a user selects a plan from the pricing page or plan picker. Use this to redirect to other pages or forms to create custom on-boarding flows.
Tier name & Plan​
resubscribe
Triggered when a customer resubscribes from the portal. This occurs when a customer was cancelled, they come back to the portal and choose to resubscribe to a plan. Use this event to update your user system with the Stripe subscription ID and tier.
​Subscription​
cancel_subscription
Triggered when a customer requests a cancellation. Use this event to update subscription status for a user.
​Subscription​
update_card
Triggered when a customer updates their Credit Card information or enters it for the first time. Use for presenting notifications to the user.
​Customer​
request_error
Triggered when any of our API requests failed. User for custom handling of any request failures.
The Request Error 
Sample Redirect on Subscribe
Redirect to a URL after subscription
<div id="billflow-embed"></div>
<script>
  window.billflowSettings = {
    billing_page_id: "B4bD7TzIKxnsZfcgJoFk",
    email: "[email protected]",
    handleResponse: async function(payload) {
      console.log("Event ", payload.event);
      console.log("Response Object ", payload.response);
      //Redirect on Signup example
      if (payload.event == "create_subscription") {
        window.location.href = "https://google.com";
      }
    }
  };
  (function() {
    var s = document.createElement('script');
    s.src = 'https://js.billflow.io/billflow-embed.js';
    s.async = true;
    s.type = 'text/javascript';
    var x = document.getElementsByTagName('script')[0];
    x.parentNode.insertBefore(s, x);
  })();
</script>
Sample Redirect based on Tier Subscribed
Sample Existing User check
Skip subscription creation if a user already exists
window.billflowSettings = {
	handleResponse: async function(payload) {
		// Implement pre subscribe hook example
    let { event, response } = payload;
		if (event === 'pre_subscribe') {
			// implement your logic for checking user exist in your system
			let { email, service, tier } = response;
			let exists = true;
			// throw an error for billflow to stop the subscribe action.
			if (exists) {
				throw {
					// displays an error message in servicebot
					message: 'User already exist, please login.',
					callback: () => {
						// call back to redirect or other actions you want to take.
						window.location = '/login';
					}
				};
			}
		}
	}
}
Track conversions with Google Analytics
Use GA to track signups
window.billflowSettings = {
  handleResponse: async function (payload) {
    let { event, response } = payload;
    console.log("Event ", event);
    console.log("Response Object ", response); //Send record to google
    if (payload.event == "create_subscription") {
      let { email, seravice, tier } = response;
      var eventData = {
        event: "subscriptionPurchased",
        email: email
      };
      window.dataLayer.push(eventData);
    }
  }
};
​

Invoice Portal Configs

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Variable Name	Description
event	The name of the event that occurred
response	The response object returned from Stripe

Event Name	Description	Response Object
pre_load	First thing run after the embed javascript loads, before any API calls have been made. Use to inject React components or tell when the embed has loaded.	Embed Configuration
post_load	billingData: null — means the subscription portal is not loaded yet billingData: {no_user: true} — means the current email is not a customer productData: null — means pricing (products) are not loaded yet productData: [ … ] — means the pricing (products) are loaded	billingData currentConfig productData
pre_subscribe	This event allows you to do some actions before creating a subscription. For example, you can use it for checking if a user exists in your system. Throwing an error here will prevent Billflow from creating a subscription.	email service tier
create_subscription	Triggered when a subscription is created from a billing page. Use this event to update your user system with the Stripe subscription ID and tier. Learn more on the install guide.	Subscription
change_plan	Triggered when a user upgrades or downgrades using the Plan Picker. You can use this to update their tier information or create notifications.	Subscription
select_plan	Triggered when a user selects a plan from the pricing page or plan picker. Use this to redirect to other pages or forms to create custom on-boarding flows.	Tier name & Plan
resubscribe	Triggered when a customer resubscribes from the portal. This occurs when a customer was cancelled, they come back to the portal and choose to resubscribe to a plan. Use this event to update your user system with the Stripe subscription ID and tier.	Subscription
cancel_subscription	Triggered when a customer requests a cancellation. Use this event to update subscription status for a user.	Subscription
update_card	Triggered when a customer updates their Credit Card information or enters it for the first time. Use for presenting notifications to the user.	Customer
request_error	Triggered when any of our API requests failed. User for custom handling of any request failures.	The Request Error