feat: use server-side API for metrics if available (#91)

* feat: use server-side api for metrics if available * simplify flags client config * refactor: rename backend url to server url for consistency
Unleash · Oct 16, 2024 · a24e2e2 · a24e2e2
1 parent b1db5c1
commit a24e2e2
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Showing 2 changed files with 20 additions and 7 deletions.
diff --git a/lib/src/flagsClient.ts b/lib/src/flagsClient.ts
@@ -1,14 +1,27 @@
 import { UnleashClient, type IToggle } from "unleash-proxy-client";
-import { getDefaultClientConfig } from "./utils";
+import { getDefaultClientConfig, getServerBaseUrl } from "./utils";
+
+const getMetricsConfig = () => {
+  const serverUrl = getServerBaseUrl()
+
+  if (serverUrl && process.env.UNLEASH_SERVER_API_TOKEN){
+    return {
+      ...getDefaultClientConfig(),
+      url: serverUrl,
+      clientKey: process.env.UNLEASH_SERVER_API_TOKEN,
+    }
+  }
+
+  return getDefaultClientConfig()
+}
 
 /**
  * Simplified client SDK to work offline with pre-evaluated flags
  */
 export const flagsClient = (toggles = [] as IToggle[]) => {
   const client = new UnleashClient({
     bootstrap: toggles,
-    ...getDefaultClientConfig(),
-    fetch: () => null,
+    ...getMetricsConfig(),
     createAbortController: () => null,
     refreshInterval: 0,
     metricsInterval: 0,

diff --git a/lib/src/utils.ts b/lib/src/utils.ts
@@ -5,8 +5,8 @@
  *
  * @see https://github.com/Bruce17/safe-compare/blob/a96e0fb1dd1b6e998f657b43987c5b7a6d48186e/index.js#L12-L38
  */
-export const safeCompare = function safeCompare(a: string, b: string) {
-  let strA = String(a);
+export const safeCompare = (a: string, b: string) => {
+  const strA = String(a);
   let strB = String(b);
   const lenA = strA.length;
   let result = 0;
@@ -38,7 +38,7 @@ const getFrontendUrl = () =>
   process.env.UNLEASH_FRONTEND_API_URL ||
   process.env.NEXT_PUBLIC_UNLEASH_FRONTEND_API_URL;
 
-const getServerBaseUrl = () =>
+export const getServerBaseUrl = () =>
   process.env.UNLEASH_SERVER_API_URL ||
   process.env.NEXT_PUBLIC_UNLEASH_SERVER_API_URL;
 
@@ -61,4 +61,4 @@ export const getDefaultClientConfig = () => {
 };
 
 export const removeTrailingSlash = (url?: string) =>
-  url && url.replace(/\/$/, "");
+  url?.replace(/\/$/, "");