feat: stripe invoices (#807)

Author: c-fitzmaurice

src/endpoints/gateways.js

@@ -37,6 +37,41 @@ class GatewaysEndpoint extends BaseExtend {
       }
     )
   }
+
+  StripeCustomers(slug, stripe_account) {
+    return this.request.send(
+      `${this.endpoint}/${slug}/stripe_customers`,
+      'POST',
+      {
+        data: {
+          options: {
+            stripe_account
+          }
+        }
+      },
+      undefined,
+      this,
+      false,
+    )
+  }
+
+  StripeInvoices(slug, stripe_account, customer_id) {
+    return this.request.send(
+      `${this.endpoint}/${slug}/stripe_invoices`,
+      'POST',
+      {
+        data: {
+          customer_id,
+          options: {
+            stripe_account,
+          }
+        }
+      },
+      undefined,
+      this,
+      false,
+    )
+  }
 }
 
 export default GatewaysEndpoint

src/types/gateway.d.ts

@@ -37,6 +37,14 @@ export interface OnboardingLinkResponse {
   onboarding_link: string
 }
 
+export interface InvoicingResult {
+  id: string
+  created: string
+  name: string
+  email: string
+  object: string
+}
+
 /**
  * Gateway Endpoints
  */
@@ -69,4 +77,27 @@ export interface GatewaysEndpoint
     returnUrl: string,
     test?: boolean
   ): Promise<T>
+
+  /**
+   * StripeCustomers
+   * Description: This endpoint allows you to retrieve all customers of a connected Stripe Account
+   * @param slug [string] The slug of supported gateway (currently only elastic_path_payments_stripe).
+   * @param stripe_account [string] The id of the connected Stripe Account
+   */
+  StripeCustomers<T = Resource<InvoicingResult>>(
+    slug: 'elastic_path_payments_stripe',
+    stripe_account: string
+  ): Promise<T>
+
+  /**
+   * StripeInvoices
+   * Description: This endpoint allows you to send a Stripe Invoice to a connected Customer
+   * @param slug [string] The slug of supported gateway (currently only elastic_path_payments_stripe).
+   * @param stripe_account [string] The id of the connected Stripe Account
+   */
+  StripeInvoices<T = Resource<InvoicingResult>>(
+    slug: 'elastic_path_payments_stripe',
+    stripe_account: string,
+    customer_id: string
+  ): Promise<T>
 }