Extract expenses API

app/api/expenses.tsx

@@ -0,0 +1,38 @@
+import { Expense } from '@/app/lib/definitions';
+import { getCsrfToken } from '@/app/lib/utils';
+
+export function loadExpenses(onLoad?: (expenses: Expense[]) => void) {
+  fetch("/api/expenses")
+    .then((response) => response.json())
+    .then((data) => {
+      onLoad && onLoad(data.map((record: any) => {
+        return ({
+          id: record.id,
+          name: record.name,
+          amount: record.amount,
+          pricingType: record.pricing_type
+        });
+      }));
+    }, (error) => {
+      return [];
+    });
+}
+
+export function updateExpense(expense: Expense) {
+  fetch(`/api/expenses/${expense.id}`,
+    {
+      method: 'PUT',
+      body: JSON.stringify({
+        expense: {
+          name: expense.name,
+          amount: expense.amount,
+          pricing_type: expense.pricingType,
+        }
+      }),
+      headers: {
+        'Content-Type': 'application/json',
+        'X-CSRF-TOKEN': getCsrfToken(),
+      }
+    })
+    .catch((error) => console.error(error));
+}

app/ui/expenses/table.tsx

@@ -2,52 +2,24 @@
 
 'use client'
 
-import React, { useState } from "react"
+import { loadExpenses, updateExpense } from '@/app/api/expenses';
 import { Expense } from '@/app/lib/definitions';
-import TableOfContents from "../components/table-of-contents";
+import { useState } from "react";
 import InlineTextField from "../components/form/inlineTextField";
-import { getCsrfToken } from '@/app/lib/utils';
+import TableOfContents from "../components/table-of-contents";
 
 export default function ExpensesTable() {
   const [expenses, setExpenses] = useState<Array<Expense>>([]);
+  const [expensesLoaded, setExpensesLoaded] = useState(false);
 
-    const handleExpenseUpdate = (expense: Expense) => {
-        fetch(`/api/expenses/${expense.id}`,
-            {
-                method: 'PUT',
-                body: JSON.stringify({
-                    expense: {
-                        name: expense.name,
-                        amount: expense.amount,
-                        pricing_type: expense.pricingType,
-                    }
-                }),
-                headers: {
-                    'Content-Type': 'application/json',
-                    'X-CSRF-TOKEN': getCsrfToken(),
-                }
-            })
-            .catch((error) => console.error(error));
-    }
-
-    function loadExpenses() {
-        fetch("/api/expenses")
-            .then((response) => response.json())
-            .then((data) => {
-                setExpenses(data.map((record: any) => {
-                    return ({
-                        id: record.id,
-                        name: record.name,
-                        amount: record.amount,
-                        pricingType: record.pricing_type
-                    });
-                }));
-            }, (error) => {
-                return [];
+  function refreshExpenses() {
+    loadExpenses((expenses) => {
+      setExpenses(expenses);
+      setExpensesLoaded(true);
     });
   }
 
-    expenses.length === 0 && loadExpenses();
+  !expensesLoaded && refreshExpenses();
 
   return (
     <TableOfContents
@@ -57,10 +29,10 @@ export default function ExpensesTable() {
       rowRender={(expense) => (
         <tr key={expense.id} className="bg-white border-b odd:bg-white odd:dark:bg-gray-900 even:bg-gray-50 even:dark:bg-gray-800">
           <th scope="row" className="px-6 py-4 font-medium text-gray-900 whitespace-nowrap dark:text-white">
-                        <InlineTextField initialValue={expense.name} onChange={(value) => { expense.name = value; handleExpenseUpdate(expense) }} />
+            <InlineTextField initialValue={expense.name} onChange={(value) => { expense.name = value; updateExpense(expense) }} />
           </th>
           <td className="px-6 py-4">
-                        <InlineTextField initialValue={expense.amount.toString()} onChange={(value) => { expense.amount = parseFloat(value); handleExpenseUpdate(expense) }} />
+            <InlineTextField initialValue={expense.amount.toString()} onChange={(value) => { expense.amount = parseFloat(value); updateExpense(expense) }} />
           </td>
           <td>
             {expense.pricingType}