update headers setup for account API and balance formating

Author: MoMannn

packages/gator-permissions-snap/.env.example

@@ -21,7 +21,7 @@ MESSAGE_SIGNING_SNAP_ID=local:http://localhost:8080
 SNAP_ENV=production
 STORE_PERMISSIONS_ENABLED=false
 PRICE_API_BASE_URL=https://price.api.cx.metamask.io
-ACCOUNT_API_BASE_URL=https://account.api.cx.metamask.io
+ACCOUNT_API_BASE_URL=https://accounts.api.cx.metamask.io
 TOKENS_API_BASE_URL=https://tokens.api.cx.metamask.io
 KERNEL_SNAP_ID=npm:@metamask/permissions-kernel-snap
 MESSAGE_SIGNING_SNAP_ID=npm:@metamask/message-signing-snap

packages/gator-permissions-snap/src/clients/accountApiClient.ts

@@ -7,6 +7,7 @@ import { z } from 'zod';
 import { ZERO_ADDRESS } from '../constants';
 import type { TokenBalanceAndMetadata, RetryOptions } from './types';
 import { makeValidatedRequestWithRetry } from '../utils/httpClient';
+import { parseUnits } from '../utils/value';
 
 /**
  * Zod schema for validating individual token balance item
@@ -185,10 +186,13 @@ export class AccountApiClient {
     }
 
     // Convert balance string to BigInt
-    // The balance comes as a decimal string in the smallest unit (e.g., wei for ETH, smallest unit for tokens)
-    // We need to handle the decimal part properly
-    const balanceValue = parseFloat(tokenData.balance);
-    return BigInt(Math.floor(balanceValue));
+    // The balance comes as a decimal string in human-readable format (e.g., "1.5" for 1.5 ETH)
+    // We need to convert it to the smallest unit by multiplying by 10^decimals
+    const balanceInSmallestUnit = parseUnits({
+      formatted: tokenData.balance,
+      decimals: tokenData.decimals,
+    });
+    return balanceInSmallestUnit;
   }
 
   /**
@@ -299,6 +303,10 @@ export class AccountApiClient {
         timeoutMs: this.#timeoutMs,
         maxResponseSizeBytes: this.#maxResponseSizeBytes,
         fetch: this.#fetch,
+        headers: {
+          'x-mmcx-internal-application': 'gator-permissions-snap',
+          'x-metamask-clientproduct': 'gator-permissions-snap',
+        },
       },
       TokenBalanceResponseSchema,
       retryOptions,

packages/gator-permissions-snap/src/utils/httpClient.ts

@@ -16,6 +16,7 @@ export type HttpClientConfig = {
   timeoutMs: number;
   maxResponseSizeBytes: number;
   fetch?: typeof globalThis.fetch;
+  headers?: Record<string, string>;
 };
 
 /**
@@ -89,9 +90,9 @@ async function makeValidatedRequest<
     response = await fetch(url, {
       signal: controller.signal,
       headers: {
+        ...config.headers,
         Accept: 'application/json',
         'User-Agent': 'MetaMask-Snap/1.0',
-        'x-mmcx-internal-application': 'gator-permissions-snap',
       },
     });
   } catch (error) {

packages/gator-permissions-snap/test/client/accountApiClient.test.ts

@@ -37,7 +37,7 @@ describe('AccountApiClient', () => {
               name: 'Ethereum',
               type: 'native',
               occurrences: 100,
-              balance: '1000000000000000000',
+              balance: '1.0',
               chainId: mockChainId,
             },
           ],
@@ -58,6 +58,7 @@ describe('AccountApiClient', () => {
           headers: {
             Accept: 'application/json',
             'User-Agent': 'MetaMask-Snap/1.0',
+            'x-metamask-clientproduct': 'gator-permissions-snap',
             'x-mmcx-internal-application': 'gator-permissions-snap',
           },
           signal: expect.any(AbortSignal),
@@ -121,7 +122,6 @@ describe('AccountApiClient', () => {
           headers: {
             Accept: 'application/json',
             'User-Agent': 'MetaMask-Snap/1.0',
-            'x-mmcx-internal-application': 'gator-permissions-snap',
           },
           signal: expect.any(AbortSignal),
         },
@@ -202,7 +202,7 @@ describe('AccountApiClient', () => {
               name: 'Ethereum',
               type: 'native',
               occurrences: 100,
-              balance: '1000000000000000000',
+              balance: '1.0',
               chainId: mockChainId,
             },
           ],
@@ -258,7 +258,7 @@ describe('AccountApiClient', () => {
               name: 'Dai Stablecoin',
               type: 'erc20',
               occurrences: 100,
-              balance: '2000000000000000000',
+              balance: '2.0',
               chainId: mockChainId,
             },
           ],
@@ -357,7 +357,7 @@ describe('AccountApiClient', () => {
               name: 'Dai Stablecoin',
               type: 'erc20',
               occurrences: 100,
-              balance: '1000000000000000000',
+              balance: '1.0',
               chainId: mockChainId,
             },
           ],
@@ -437,7 +437,7 @@ describe('AccountApiClient', () => {
               name: 'Ethereum',
               type: 'native',
               occurrences: 100,
-              balance: '1000000000000000000',
+              balance: '1.0',
               chainId: mockChainId,
             },
           ],
@@ -523,7 +523,7 @@ describe('AccountApiClient', () => {
               name: 'Some Token',
               type: 'unsupported_type',
               occurrences: 100,
-              balance: '1000000000000000000',
+              balance: '1.0',
               chainId: mockChainId,
             },
           ],
@@ -603,7 +603,7 @@ describe('AccountApiClient', () => {
                 name: 'Ethereum',
                 type: 'native',
                 occurrences: 100,
-                balance: '1000000000000000000',
+                balance: '1.0',
                 chainId: mockChainId,
               },
             ],
@@ -682,7 +682,7 @@ describe('AccountApiClient', () => {
                 name: 'Ethereum',
                 type: 'native',
                 occurrences: 100,
-                balance: '1000000000000000000',
+                balance: '1.0',
                 chainId: mockChainId,
               },
             ],
@@ -830,7 +830,7 @@ describe('AccountApiClient', () => {
                 name: 'Ethereum',
                 type: 'native',
                 occurrences: 100,
-                balance: '1000000000000000000',
+                balance: '1.0',
                 chainId: mockChainId,
               },
             ],
@@ -881,7 +881,7 @@ describe('AccountApiClient', () => {
                 name: 'Ethereum',
                 type: 'native',
                 occurrences: 100,
-                balance: '1000000000000000000',
+                balance: '1.0',
                 chainId: mockChainId,
               },
             ],