feat(api/utils): create getBaseUrl method

libs/utils/src/index.ts

@@ -1 +1,3 @@
 export * from './lib/utils'
+
+export * from './url'

libs/utils/src/url.ts

@@ -0,0 +1,13 @@
+import process from 'node:process'
+
+/**
+ * This function gets the base URL of the current environment.
+ * @returns The base URL.
+ */
+export function getBaseUrl() {
+  if (typeof window !== 'undefined') {
+    return window.location.origin
+  }
+
+  return `http://localhost:${String(process.env.PORT ?? 3000)}`
+}