PaymentMethodHandler

@vendure/core Source

A PaymentMethodHandler contains the code which is used to generate a Payment when a call to the addPaymentToOrder mutation is made. It contains any necessary steps of interfacing with a third-party payment gateway before the Payment is created and can also define actions to fire when the state of the payment is changed.

PaymentMethodHandlers are instantiated using a PaymentMethodConfigOptions object, which configures the business logic used to create, settle and refund payments.

Example

import { PaymentMethodHandler, CreatePaymentResult, SettlePaymentResult, LanguageCode } from '@vendure/core';// A mock 3rd-party payment SDKimport gripeSDK from 'gripe';export const examplePaymentHandler = new PaymentMethodHandler({  code: 'example-payment-provider',  description: [{    languageCode: LanguageCode.en,    value: 'Example Payment Provider',  }],  args: {    apiKey: { type: 'string' },  },  createPayment: async (ctx, order, amount, args, metadata): Promise<CreatePaymentResult> => {    try {      const result = await gripeSDK.charges.create({        amount,        apiKey: args.apiKey,        source: metadata.authToken,      });      return {        amount: order.total,        state: 'Settled' as const,        transactionId: result.id.toString(),        metadata: result.outcome,      };    } catch (err: any) {      return {        amount: order.total,        state: 'Declined' as const,        metadata: {          errorMessage: err.message,        },      };    }  },  settlePayment: async (ctx, order, payment, args): Promise<SettlePaymentResult> => {    return { success: true };  }});