feat(medusa-payment-stripe): Stripe PaymentProcessor implementation (#3257)

packages/medusa/src/interfaces/cart-completion-strategy.ts

@@ -27,6 +27,7 @@ export interface ICartCompletionStrategy {
 }
 
 export abstract class AbstractCartCompletionStrategy
+  extends TransactionBaseService
   implements ICartCompletionStrategy
 {
   abstract complete(

packages/medusa/src/interfaces/payment-processor.ts

@@ -33,11 +33,6 @@ export interface PaymentProcessor {
    */
   getIdentifier(): string
 
-  /**
-   * Used to initialise anything like an SDK or similar
-   */
-  init(): Promise<void>
-
   /**
    * Initiate a payment session with the external provider
    */
@@ -147,8 +142,6 @@ export abstract class AbstractPaymentProcessor implements PaymentProcessor {
     return ctr.identifier
   }
 
-  abstract init(): Promise<void>
-
   abstract capturePayment(
     paymentSessionData: Record<string, unknown>
   ): Promise<