Fix api in lib folder.

.gitignore

@@ -14,7 +14,6 @@ dist/
 downloads/
 eggs/
 .eggs/
-lib/
 lib64/
 parts/
 sdist/

frontend/src/components/AccountsOverview.tsx

@@ -10,6 +10,7 @@ import {
 import { apiClient } from '../lib/api';
 import { formatCurrency, formatDate } from '../lib/utils';
 import LoadingSpinner from './LoadingSpinner';
+import type { Account, Balance } from '../types/api';
 
 export default function AccountsOverview() {
   const {
@@ -17,14 +18,14 @@ export default function AccountsOverview() {
     isLoading: accountsLoading,
     error: accountsError,
     refetch: refetchAccounts
-  } = useQuery({
+  } = useQuery<Account[]>({
     queryKey: ['accounts'],
     queryFn: apiClient.getAccounts,
   });
 
   const {
     data: balances
-  } = useQuery({
+  } = useQuery<Balance[]>({
     queryKey: ['balances'],
     queryFn: () => apiClient.getBalances(),
   });

frontend/src/components/Dashboard.tsx

@@ -15,6 +15,7 @@ import AccountsOverview from './AccountsOverview';
 import TransactionsList from './TransactionsList';
 import ErrorBoundary from './ErrorBoundary';
 import { cn } from '../lib/utils';
+import type { Account } from '../types/api';
 
 type TabType = 'overview' | 'transactions' | 'analytics';
 
@@ -22,7 +23,7 @@ export default function Dashboard() {
   const [activeTab, setActiveTab] = useState<TabType>('overview');
   const [sidebarOpen, setSidebarOpen] = useState(false);
 
-  const { data: accounts } = useQuery({
+  const { data: accounts } = useQuery<Account[]>({
     queryKey: ['accounts'],
     queryFn: apiClient.getAccounts,
   });

frontend/src/components/TransactionsList.tsx

@@ -13,6 +13,7 @@ import {
 import { apiClient } from '../lib/api';
 import { formatCurrency, formatDate } from '../lib/utils';
 import LoadingSpinner from './LoadingSpinner';
+import type { Account, Transaction } from '../types/api';
 
 export default function TransactionsList() {
   const [searchTerm, setSearchTerm] = useState('');
@@ -23,7 +24,7 @@ export default function TransactionsList() {
 
   const {
     data: accounts
-  } = useQuery({
+  } = useQuery<Account[]>({
     queryKey: ['accounts'],
     queryFn: apiClient.getAccounts,
   });
@@ -33,18 +34,18 @@ export default function TransactionsList() {
     isLoading: transactionsLoading,
     error: transactionsError,
     refetch: refetchTransactions
-  } = useQuery({
+  } = useQuery<Transaction[]>({
     queryKey: ['transactions', selectedAccount, startDate, endDate],
     queryFn: () => apiClient.getTransactions({
-      account_id: selectedAccount || undefined,
-      start_date: startDate || undefined,
-      end_date: endDate || undefined,
+      accountId: selectedAccount || undefined,
+      startDate: startDate || undefined,
+      endDate: endDate || undefined,
     }),
   });
 
   const filteredTransactions = (transactions || []).filter(transaction => {
     // Additional validation (API client should have already filtered out invalid ones)
-    if (!transaction || !transaction.id) {
+    if (!transaction || !transaction.account_id) {
       console.warn('Invalid transaction found after API filtering:', transaction);
       return false;
     }
@@ -239,7 +240,7 @@ export default function TransactionsList() {
             const isPositive = transaction.amount > 0;
 
             return (
-              <div key={transaction.id} className="p-6 hover:bg-gray-50 transition-colors">
+              <div key={transaction.internal_transaction_id || `${transaction.account_id}-${transaction.date}-${transaction.amount}`} className="p-6 hover:bg-gray-50 transition-colors">
                 <div className="flex items-start justify-between">
                   <div className="flex-1">
                     <div className="flex items-start space-x-3">
@@ -274,8 +275,8 @@ export default function TransactionsList() {
                             <p>Ref: {transaction.reference}</p>
                           )}
 
-                          {transaction.internal_id && (
-                            <p>ID: {transaction.internal_id}</p>
+                          {transaction.internal_transaction_id && (
+                            <p>ID: {transaction.internal_transaction_id}</p>
                           )}
                         </div>
                       </div>
@@ -289,9 +290,9 @@ export default function TransactionsList() {
                       {isPositive ? '+' : ''}{formatCurrency(transaction.amount, transaction.currency)}
                     </p>
                     <p className="text-sm text-gray-500">
-                      {transaction.transaction_date ? formatDate(transaction.transaction_date) : 'No date'}
+                      {transaction.date ? formatDate(transaction.date) : 'No date'}
                     </p>
-                    {transaction.booking_date && transaction.booking_date !== transaction.transaction_date && (
+                    {transaction.booking_date && transaction.booking_date !== transaction.date && (
                       <p className="text-xs text-gray-400">
                         Booked: {formatDate(transaction.booking_date)}
                       </p>

frontend/src/lib/api.ts

@@ -0,0 +1,67 @@
+import axios from 'axios';
+import type { Account, Transaction, Balance, ApiResponse } from '../types/api';
+
+const API_BASE_URL = import.meta.env.VITE_API_URL || 'http://localhost:8000/api/v1';
+
+const api = axios.create({
+  baseURL: API_BASE_URL,
+  headers: {
+    'Content-Type': 'application/json',
+  },
+});
+
+export const apiClient = {
+  // Get all accounts
+  getAccounts: async (): Promise<Account[]> => {
+    const response = await api.get<ApiResponse<Account[]>>('/accounts');
+    return response.data.data;
+  },
+
+  // Get account by ID
+  getAccount: async (id: string): Promise<Account> => {
+    const response = await api.get<ApiResponse<Account>>(`/accounts/${id}`);
+    return response.data.data;
+  },
+
+  // Get all balances
+  getBalances: async (): Promise<Balance[]> => {
+    const response = await api.get<ApiResponse<Balance[]>>('/balances');
+    return response.data.data;
+  },
+
+  // Get balances for specific account
+  getAccountBalances: async (accountId: string): Promise<Balance[]> => {
+    const response = await api.get<ApiResponse<Balance[]>>(`/accounts/${accountId}/balances`);
+    return response.data.data;
+  },
+
+  // Get transactions with optional filters
+  getTransactions: async (params?: {
+    accountId?: string;
+    startDate?: string;
+    endDate?: string;
+    page?: number;
+    perPage?: number;
+    search?: string;
+  }): Promise<Transaction[]> => {
+    const queryParams = new URLSearchParams();
+
+    if (params?.accountId) queryParams.append('account_id', params.accountId);
+    if (params?.startDate) queryParams.append('start_date', params.startDate);
+    if (params?.endDate) queryParams.append('end_date', params.endDate);
+    if (params?.page) queryParams.append('page', params.page.toString());
+    if (params?.perPage) queryParams.append('per_page', params.perPage.toString());
+    if (params?.search) queryParams.append('search', params.search);
+
+    const response = await api.get<ApiResponse<Transaction[]>>(`/transactions?${queryParams.toString()}`);
+    return response.data.data;
+  },
+
+  // Get transaction by ID
+  getTransaction: async (id: string): Promise<Transaction> => {
+    const response = await api.get<ApiResponse<Transaction>>(`/transactions/${id}`);
+    return response.data.data;
+  },
+};
+
+export default apiClient;

frontend/src/lib/utils.ts

@@ -0,0 +1,46 @@
+import { clsx, type ClassValue } from 'clsx';
+
+export function cn(...inputs: ClassValue[]) {
+  return clsx(inputs);
+}
+
+export function formatCurrency(amount: number, currency: string = 'EUR'): string {
+  return new Intl.NumberFormat('en-US', {
+    style: 'currency',
+    currency: currency,
+  }).format(amount);
+}
+
+export function formatDate(date: string): string {
+  if (!date) return 'No date';
+
+  const parsedDate = new Date(date);
+  if (isNaN(parsedDate.getTime())) {
+    console.warn('Invalid date string:', date);
+    return 'Invalid date';
+  }
+
+  return new Intl.DateTimeFormat('en-US', {
+    year: 'numeric',
+    month: 'short',
+    day: 'numeric',
+  }).format(parsedDate);
+}
+
+export function formatDateTime(date: string): string {
+  if (!date) return 'No date';
+
+  const parsedDate = new Date(date);
+  if (isNaN(parsedDate.getTime())) {
+    console.warn('Invalid date string:', date);
+    return 'Invalid date';
+  }
+
+  return new Intl.DateTimeFormat('en-US', {
+    year: 'numeric',
+    month: 'short',
+    day: 'numeric',
+    hour: '2-digit',
+    minute: '2-digit',
+  }).format(parsedDate);
+}

frontend/src/types/api.ts

@@ -11,21 +11,22 @@ export interface Account {
 }
 
 export interface Transaction {
-  id: string;
-  internal_id?: string;
+  internal_transaction_id: string | null;
   account_id: string;
   amount: number;
   currency: string;
   description: string;
-  transaction_date: string;
+  date: string;
+  status: string;
+  // Optional fields that may be present in some transactions
   booking_date?: string;
   value_date?: string;
   creditor_name?: string;
   debtor_name?: string;
   reference?: string;
   category?: string;
-  created_at: string;
-  updated_at: string;
+  created_at?: string;
+  updated_at?: string;
 }
 
 // Type for raw transaction data from API (before sanitization)
@@ -68,7 +69,7 @@ export interface Bank {
 export interface ApiResponse<T> {
   data: T;
   message?: string;
-  status: string;
+  success: boolean;
 }
 
 export interface PaginatedResponse<T> {