SDK Events Glossary

This page describes events sent by Payrails SDKs

Event types

Payrails Web SDK has two categories of events:

CategoryDescriptionEvent Names
UI EventsEvents which are triggered on user interaction with an SDK element or when the payment methods gets shown/ removed from the screen.onChange, onFocus, onCardChange, onSaveInstrumentCheckboxChanged, onPaymentButtonClicked, onReady, onGooglePayAvailable, onApplePayAvailable, onPaypalAvailable,onAvailable, onPaymentOptionSelected
Payment EventsEvents which are related to the payment authorization lifecycle.onAuthorizeSuccess, onAuthorizeFailed, onAuthorizePending, onThreeDSecureChallenge, onPaymentSessionExpired

Rules for Event Execution

While UI events are async and trigger on user interaction (such as onChange, onFocus), payment events have some rules and order of execution around them.

onAuthorizeSuccess , onAuthorizeFailed and onAuthorizePending are terminal events. This means each request will result in at least a success or failed state and corresponding event will be fired. Rules for event execution are defined below:

  • onPaymentButtonClicked (UI Event) - if this returns false, this also calls onAuthorizeFailed as terminal event.
  • onThreeDSecureChallenge - triggered when the user sees the 3D Secure popup.
  • onPaymentSessionExpired - in case of unauthorized request. Also calls onAuthorizeFailed as terminal event.
  • onAuthorizeFailed - when payment authorization fails.
  • onAuthorizeSuccess - when payment authorization is successful
  • onAuthorizePending - triggered when the execution is in pending state with no further action required from the user. (Please reach out to your account manager on what could be the potential use cases for this event)

Web SDK Event Glossary

Name

Type

Description

Function Signature

onPaymentOptionSelected

UI

triggered each time the payment option is selected

for saved instrument both instrument details and payment method config are returned

for payment method only payment method config is returned

(e: onPaymentMethodSelectedParams) => void

onSaveInstrumentCheckboxChanged

UI

triggered each time save instrument checkbox changes state

({ checked }: { checked: boolean }) => void;

onPaymentButtonClicked

UI

triggered each time, user clicks on the payment button.

This event is called just before the SDK makes a call to authorize.

callback passed to this event should return a Promise which resolves to a boolean

If this callback returns false, SDK does not make the authorize call and the user sees a payment not successful screen and also triggers onAuthorizeFailed event.

(event?: { bin?: string }) => Promise<boolean>;

onStateChanged

UI

triggered when payment button state changes

(state: 'enabled' \| 'disabled') => void;

onThreeDSecureChallenge

Payment

triggered just before the user sees the 3ds popup

() => void;

onPaymentSessionExpired

Payment

triggered when authorization fails due to payment session expiration

() => void;

onAuthorizeSuccess

Payment

triggered when payment authorization is successful

callback passed to this event can pass a param to get more information regarding the authorization

(event?: any) => void;

onAuthorizeFailed

Payment

generic authorization failure event triggered for all the authorization failure reasons.

callback passed to this event can pass a param to get more information regarding the reason of failure

(event?: any) => void;

onChange

UI

triggered when changes are made to the card form

(event: OnChange) => void;

onFocus

UI

triggered when any input field inside the card form triggers focus event

() => void;

onReady

UI

triggered when the card form is rendered and ready to pay

() => void;

onCardChange

UI

triggered when user selects a different saved instrument in the saved instrument list

(selectedCard: StoredPaymentInstrument<CardMetadata>) => void

onBillingAddressChanged

UI

triggered when billing address changes

((e: {  
 isValid: boolean;  
 billingAddress?: IAddress;  
}) => void)

React Native Event Glossary

Name

Description

Function Signature

onAuthorizeSuccess

Triggered when payment authorization is successful

() => void;

onAuthorizeFailure

Triggered when payment authorization fails

() => void;

onAuthorizeError

Triggered in case of when BE returns 5xx or the client throws. For unsuccessful authorizations onAuthorizeFailure is fired

(error: any) => void;

onAuthenticationError

Triggered when the access token is expired

() => void;

onAuthorizeStart

Triggered when the payment button is clicked.
If the resolved value is false, then the payment is canceled. It fires after a user clicks the payment button. It allows a merchant to perform additional checks and block the payment if needed

() => Promise<boolean>;

onRequestProgressChange

Triggered when authorization request changes state. It can be used to show a loading state

(isInProgress: boolean) => void;

onAuthorizeCancel

Triggered when user closed a popup (for paypal) or a webview (for 3DS) without completing the challenge. This is only available for APM hooks:

useExecuteGooglePayPayment

useExecuteApplePayPayment

useExecutePayPalPayment

() => void;

onAuthorizeRequestStart

triggered after the user actually approves the payment on APM modals (Apple Pay, Google Pay or Paypal) and before the authorize request is initiated from the SDK.

() => void;