First commit

libs/modules/src/azAppConfig/az-app-config.constants.ts

@@ -0,0 +1 @@
+export const AZ_APP_CONFIG_OPTIONS = 'AZ_APP_CONFIG_OPTIONS';

libs/modules/src/azAppConfig/az-app-config.interface.ts

@@ -0,0 +1,3 @@
+export interface AzAppConfigOptions {
+  connectionString: string;
+}

libs/modules/src/azAppConfig/az-app-config.module.ts

@@ -0,0 +1,21 @@
+import { Module, DynamicModule } from '@nestjs/common';
+import { AzAppConfigService } from './az-app-config.service';
+import { AzAppConfigOptions } from './az-app-config.interface';
+import { AZ_APP_CONFIG_OPTIONS } from './az-app-config.constants';
+
+@Module({})
+export class AzAppConfigModule {
+  static register(options: AzAppConfigOptions): DynamicModule {
+    return {
+      module: AzAppConfigModule,
+      providers: [
+        {
+          provide: AZ_APP_CONFIG_OPTIONS,
+          useValue: options,
+        },
+        AzAppConfigService,
+      ],
+      exports: [AzAppConfigService],
+    };
+  }
+}

libs/modules/src/azAppConfig/az-app-config.service.ts

@@ -0,0 +1,34 @@
+import { Inject, Injectable } from '@nestjs/common';
+import { AzAppConfigOptions } from './az-app-config.interface';
+import { FeatureFlag } from './feature-flag.interface';
+import { AppConfigurationClient } from '@azure/app-configuration';
+import { AZ_APP_CONFIG_OPTIONS } from './az-app-config.constants';
+
+@Injectable()
+export class AzAppConfigService {
+  constructor(
+    @Inject(AZ_APP_CONFIG_OPTIONS)
+    private azAppConfigOptions: AzAppConfigOptions,
+  ) { }
+
+  async getFeatureFlag(key: string, label: string): Promise<FeatureFlag> {
+    try {
+      const client = new AppConfigurationClient(
+        this.azAppConfigOptions.connectionString,
+      );
+      const configurationSetting = await client.getConfigurationSetting({
+        key: key,
+        label: label,
+      });
+      const featureFlag: FeatureFlag = {
+        name: configurationSetting.key,
+        environment: configurationSetting.label,
+        active: configurationSetting.value,
+      };
+
+      return featureFlag;
+    } catch (error) {
+      return error;
+    }
+  }
+}

libs/modules/src/azAppConfig/feature-flag.interface.ts

@@ -0,0 +1,5 @@
+export interface FeatureFlag {
+  name: string;
+  environment: string;
+  active: string;
+}

libs/modules/src/index.ts

@@ -0,0 +1,2 @@
+export * from './azAppConfig/az-app-config.module';
+export * from './azAppConfig/az-app-config.service';

libs/modules/tsconfig.lib.json

@@ -0,0 +1,9 @@
+{
+  "extends": "../../tsconfig.json",
+  "compilerOptions": {
+    "declaration": true,
+    "outDir": "../../dist/libs/modules"
+  },
+  "include": ["src/**/*"],
+  "exclude": ["node_modules", "dist", "test", "**/*spec.ts"]
+}