load feature flags from new endpoint

src/appConfigClient.ts

@@ -0,0 +1,100 @@
+// Copyright (c) Microsoft Corporation.
+// Licensed under the MIT license.
+
+import {
+    AppConfigurationClient,
+    CheckConfigurationSettingsOptions,
+    ConfigurationSettingId,
+    FeatureFlagClient,
+    GetConfigurationSettingOptions,
+    GetSnapshotOptions,
+    ListConfigurationSettingsForSnapshotOptions,
+    ListConfigurationSettingsOptions,
+    ListFeatureFlagsOptions
+} from "@azure/app-configuration";
+import { RequestTracingOptions, applyRequestTracing } from "./requestTracing/utils.js";
+
+/**
+ * A single client abstraction for an Azure App Configuration endpoint that exposes the subset of
+ * operations the provider needs from both the @see AppConfigurationClient and the @see FeatureFlagClient.
+ */
+export interface IAppConfigurationClient {
+    /**
+     * The endpoint of the Azure App Configuration store this client communicates with.
+     */
+    readonly endpoint: string;
+
+    listConfigurationSettings(
+        listOptions: ListConfigurationSettingsOptions,
+        tracingOptions: RequestTracingOptions
+    ): ReturnType<AppConfigurationClient["listConfigurationSettings"]>;
+
+    checkConfigurationSettings(
+        checkOptions: CheckConfigurationSettingsOptions,
+        tracingOptions: RequestTracingOptions
+    ): ReturnType<AppConfigurationClient["checkConfigurationSettings"]>;
+
+    getConfigurationSetting(
+        configurationSettingId: ConfigurationSettingId,
+        getOptions: GetConfigurationSettingOptions | undefined,
+        tracingOptions: RequestTracingOptions
+    ): ReturnType<AppConfigurationClient["getConfigurationSetting"]>;
+
+    getSnapshot(
+        snapshotName: string,
+        getOptions: GetSnapshotOptions | undefined,
+        tracingOptions: RequestTracingOptions
+    ): ReturnType<AppConfigurationClient["getSnapshot"]>;
+
+    listConfigurationSettingsForSnapshot(
+        snapshotName: string,
+        listOptions: ListConfigurationSettingsForSnapshotOptions | undefined,
+        tracingOptions: RequestTracingOptions
+    ): ReturnType<AppConfigurationClient["listConfigurationSettingsForSnapshot"]>;
+
+    listFeatureFlags(
+        listOptions: ListFeatureFlagsOptions,
+        tracingOptions: RequestTracingOptions
+    ): ReturnType<FeatureFlagClient["listFeatureFlags"]>;
+}
+
+/**
+ * The default @see IAppConfigurationClient implementation, backed by the @see AppConfigurationClient
+ * and @see FeatureFlagClient SDK clients. Request tracing is applied per call before delegating to the
+ * corresponding SDK client.
+ */
+export class AppConfigClient implements IAppConfigurationClient {
+    readonly endpoint: string;
+    #configurationClient: AppConfigurationClient;
+    #featureFlagClient: FeatureFlagClient;
+
+    constructor(endpoint: string, configurationClient: AppConfigurationClient, featureFlagClient: FeatureFlagClient) {
+        this.endpoint = endpoint;
+        this.#configurationClient = configurationClient;
+        this.#featureFlagClient = featureFlagClient;
+    }
+
+    listConfigurationSettings(listOptions: ListConfigurationSettingsOptions, tracingOptions: RequestTracingOptions) {
+        return this.#configurationClient.listConfigurationSettings(applyRequestTracing(tracingOptions, listOptions));
+    }
+
+    checkConfigurationSettings(checkOptions: CheckConfigurationSettingsOptions, tracingOptions: RequestTracingOptions) {
+        return this.#configurationClient.checkConfigurationSettings(applyRequestTracing(tracingOptions, checkOptions));
+    }
+
+    getConfigurationSetting(configurationSettingId: ConfigurationSettingId, getOptions: GetConfigurationSettingOptions | undefined, tracingOptions: RequestTracingOptions) {
+        return this.#configurationClient.getConfigurationSetting(configurationSettingId, applyRequestTracing(tracingOptions, getOptions));
+    }
+
+    getSnapshot(snapshotName: string, getOptions: GetSnapshotOptions | undefined, tracingOptions: RequestTracingOptions) {
+        return this.#configurationClient.getSnapshot(snapshotName, applyRequestTracing(tracingOptions, getOptions));
+    }
+
+    listConfigurationSettingsForSnapshot(snapshotName: string, listOptions: ListConfigurationSettingsForSnapshotOptions | undefined, tracingOptions: RequestTracingOptions) {
+        return this.#configurationClient.listConfigurationSettingsForSnapshot(snapshotName, applyRequestTracing(tracingOptions, listOptions));
+    }
+
+    listFeatureFlags(listOptions: ListFeatureFlagsOptions, tracingOptions: RequestTracingOptions) {
+        return this.#featureFlagClient.listFeatureFlags(applyRequestTracing(tracingOptions, listOptions));
+    }
+}