Put back files

inventory-server/dashboard/klaviyo-server/services/metrics.service.js

@@ -0,0 +1,38 @@
+import fetch from 'node-fetch';
+
+export class MetricsService {
+  constructor(apiKey, apiRevision) {
+    this.apiKey = apiKey;
+    this.apiRevision = apiRevision;
+    this.baseUrl = 'https://a.klaviyo.com/api';
+  }
+  async getMetrics() {
+    try {
+      const response = await fetch(`${this.baseUrl}/metrics/`, {
+        headers: {
+          'Authorization': `Klaviyo-API-Key ${this.apiKey}`,
+          'revision': this.apiRevision,
+          'Content-Type': 'application/json',
+          'Accept': 'application/json'
+        }
+      });
+
+      if (!response.ok) {
+        const errorData = await response.json();
+        console.error('[MetricsService] API Error:', errorData);
+        throw new Error(`Klaviyo API error: ${response.status} ${response.statusText}`);
+      }
+
+      const data = await response.json();
+      // Sort the results by name before returning
+      if (data.data) {
+        data.data.sort((a, b) => a.attributes.name.localeCompare(b.attributes.name));
+      }
+
+      return data;
+    } catch (error) {
+      console.error('[MetricsService] Error fetching metrics:', error);
+      throw error;
+    }
+  }
+}