feat: Added Akamai Edge store provider (#125)

Added Edge KV store provider for Akamai

Author: ctawiah

packages/sdk/akamai/src/edgeKVProvider.ts

@@ -0,0 +1,24 @@
+import { EdgeProvider } from '@launchdarkly/js-server-sdk-common-edge';
+import { EdgeKV } from './libs/edgekv';
+
+type EdgeKVProviderParams = {
+  namespace: string;
+  group: string;
+};
+
+export default class EdgeKVProvider implements EdgeProvider {
+  private edgeKv: EdgeKV;
+
+  constructor({ namespace, group }: EdgeKVProviderParams) {
+    this.edgeKv = new EdgeKV({ namespace, group } as any);
+  }
+
+  async get(rootKey: string): Promise<string | null | undefined> {
+    try {
+      return await this.edgeKv.getText({ item: rootKey } as any);
+    } catch (e) {
+      /* empty */
+    }
+    return undefined;
+  }
+}