first commit of refactor

frontend/src/api/addresses.jsx

@@ -0,0 +1,113 @@
+// API client for address management
+
+import { getAuthHeaders, getAuthHeadersSimple } from './authHeaders';
+
+const API_BASE = '/api';
+
+/**
+ * Create a new blockchain address to monitor
+ * @param {Object} data - Address data
+ * @param {string} data.address - Blockchain address (0x...)
+ * @param {string} [data.label] - Optional label for the address
+ * @returns {Promise<Object>} Created address with id and metadata
+ */
+export async function createAddress(data) {
+  try {
+  const headers = await getAuthHeaders();
+  const response = await fetch(`${API_BASE}/addresses`, {
+    method: 'POST',
+    headers: headers,
+    body: JSON.stringify(data)
+  });
+  
+  if (!response.ok) {
+      // Try to parse error response, but handle if it's not JSON
+      let errorMessage = 'Failed to create address';
+      try {
+    const error = await response.json();
+        errorMessage = error.message || errorMessage;
+      } catch {
+        // If JSON parse fails, use status text
+        errorMessage = `Server error: ${response.status} ${response.statusText}`;
+      }
+      throw new Error(errorMessage);
+  }
+  
+  return response.json();
+  } catch (error) {
+    // Handle network errors
+    if (error.message.includes('fetch')) {
+      throw new Error('Cannot connect to server. Is the backend running?');
+    }
+    throw error;
+  }
+}
+
+/**
+ * Get all tracked addresses
+ * @returns {Promise<Array>} List of all addresses
+ */
+export async function getAddresses() {
+  try {
+  const headers = await getAuthHeadersSimple();
+  const response = await fetch(`${API_BASE}/addresses`, {
+    headers: headers
+  });
+  
+  if (!response.ok) {
+      // Try to parse error response, but handle if it's not JSON
+      let errorMessage = 'Failed to fetch addresses';
+      try {
+    const error = await response.json();
+        errorMessage = error.message || errorMessage;
+      } catch {
+        // If JSON parse fails, use status text
+        errorMessage = `Server error: ${response.status} ${response.statusText}`;
+      }
+      throw new Error(errorMessage);
+  }
+  
+  return response.json();
+  } catch (error) {
+    // Handle network errors or JSON parse errors
+    if (error.message.includes('fetch')) {
+      throw new Error('Cannot connect to server. Is the backend running?');
+    }
+    throw error;
+  }
+}
+
+/**
+ * Delete a tracked address
+ * @param {number} addressId - Address ID to delete
+ * @returns {Promise<void>}
+ */
+export async function deleteAddress(addressId) {
+  try {
+  const headers = await getAuthHeadersSimple();
+  const response = await fetch(`${API_BASE}/addresses/${addressId}`, {
+    method: 'DELETE',
+    headers: headers
+  });
+  
+  if (!response.ok && response.status !== 204) {
+      // Try to parse error response, but handle if it's not JSON
+      let errorMessage = 'Failed to delete address';
+      try {
+    const error = await response.json();
+        errorMessage = error.message || errorMessage;
+      } catch {
+        // If JSON parse fails, use status text
+        errorMessage = `Server error: ${response.status} ${response.statusText}`;
+      }
+      throw new Error(errorMessage);
+    }
+  } catch (error) {
+    // Handle network errors
+    if (error.message.includes('fetch')) {
+      throw new Error('Cannot connect to server. Is the backend running?');
+    }
+    throw error;
+  }
+}
+