fix: issues with braintree and rounding

Author: dwene

plugins/braintree-payment/package.json

@@ -30,13 +30,13 @@
     "lambdacurry"
   ],
   "devDependencies": {
-    "@medusajs/admin-sdk": "2.8.2",
-    "@medusajs/cli": "2.8.2",
-    "@medusajs/framework": "2.8.2",
-    "@medusajs/icons": "2.8.2",
-    "@medusajs/medusa": "2.8.2",
-    "@medusajs/test-utils": "2.8.2",
-    "@medusajs/ui": "4.0.3",
+    "@medusajs/admin-sdk": "^2.8.2",
+    "@medusajs/cli": "^2.8.2",
+    "@medusajs/framework": "^2.8.2",
+    "@medusajs/icons": "^2.8.2",
+    "@medusajs/medusa": "^2.8.2",
+    "@medusajs/test-utils": "^2.8.2",
+    "@medusajs/ui": "^4.0.3",
     "@swc/core": "1.5.7",
     "@types/braintree": "^3.3.14"
   },
@@ -46,13 +46,13 @@
     "prepublishOnly": "npx medusa plugin:build"
   },
   "peerDependencies": {
-    "@medusajs/admin-sdk": "2.8.2",
-    "@medusajs/cli": "2.8.2",
-    "@medusajs/framework": "2.8.2",
-    "@medusajs/icons": "2.8.2",
+    "@medusajs/admin-sdk": "^2.8.2",
+    "@medusajs/cli": "^2.8.2",
+    "@medusajs/framework": "^2.8.2",
+    "@medusajs/icons": "^2.8.2",
     "@medusajs/medusa": "2.8.2",
-    "@medusajs/test-utils": "2.8.2",
-    "@medusajs/ui": "4.0.3"
+    "@medusajs/test-utils": "^2.8.2",
+    "@medusajs/ui": "^4.0.3"
   },
   "engines": {
     "node": ">=20"

plugins/braintree-payment/src/providers/payment-braintree/src/core/braintree-base.ts

@@ -43,6 +43,7 @@ import type {
 import type { Transaction, TransactionNotification, TransactionStatus } from 'braintree';
 import Braintree from 'braintree';
 import type { BraintreeOptions, CustomFields } from '../types';
+import { getSmallestUnit } from '../utils/get-smallest-unit';
 
 export interface BraintreePaymentSessionData {
   clientToken: string;
@@ -346,11 +347,12 @@ class BraintreeBase extends AbstractPaymentProvider<BraintreeOptions> {
 
     const { data } = input;
     const tokenData = await this.gateway.clientToken.generate({});
+
     const dataToSave: BraintreePaymentSessionData & { medusaPaymentSessionId: string } = {
       clientToken: tokenData.clientToken,
       medusaPaymentSessionId: paymentSessionId as string,
       paymentMethodNonce: data?.paymentMethodNonce as string,
-      amount: input.amount as number,
+      amount: getSmallestUnit(input.amount, input.currency_code),
       currency_code: input.currency_code,
     };
 
@@ -615,7 +617,7 @@ class BraintreeBase extends AbstractPaymentProvider<BraintreeOptions> {
       throw new MedusaError(MedusaError.Types.NOT_FOUND, 'Braintree transaction not found');
     }
 
-    const refundAmount = Number.parseFloat(input.amount.toString());
+    const refundAmount = getSmallestUnit(input.amount, sessionData.currency_code);
 
     if (braintreeTransaction.status === 'submitted_for_settlement' || braintreeTransaction.status === 'authorized') {
       const cancelledTransaction = await this.gateway.transaction.void(braintreeTransaction.id);