adding app config and auth modules

libs/modules/src/appConfig/app-config.constants.ts

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

libs/modules/src/appConfig/app-config.interface.ts

@@ -0,0 +1,3 @@
+export interface AppConfigOptions {
+  url: string;
+}

libs/modules/src/appConfig/app-config.module.ts

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

libs/modules/src/appConfig/app-config.service.ts

@@ -0,0 +1,31 @@
+import { Inject, Injectable } from '@nestjs/common';
+import { AppConfigOptions } from './app-config.interface';
+import { APP_CONFIG_OPTIONS } from './app-config.constants';
+import axios, { AxiosResponse } from 'axios';
+import { FeatureFlagValue } from '@azure/app-configuration';
+
+@Injectable()
+export class AppConfigService {
+  constructor(
+    @Inject(APP_CONFIG_OPTIONS)
+    private appConfigOptions: AppConfigOptions
+  ) { }
+
+  async getFeatureFlags(token: string, key: string, label: string): Promise<FeatureFlagValue[]> {
+    try {
+      const response: AxiosResponse = await axios.get(
+        `${this.appConfigOptions.url}/kv?key=.appconfig.featureflag/${key}&label=${label}`,
+        {
+          headers: {
+            Authorization: `Bearer ${token}`
+          }
+        }
+      );
+      const featureFlags: FeatureFlagValue[] = response.data.items.map((item) => item.value)
+
+      return featureFlags;
+    } catch (error) {
+      return error;
+    }
+  }
+}

libs/modules/src/auth/auth.constants.ts

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

libs/modules/src/auth/auth.interface.ts

@@ -0,0 +1,3 @@
+export interface AuthOptions {
+  tenantId: string;
+}

libs/modules/src/auth/auth.module.ts

@@ -0,0 +1,21 @@
+import { Module, DynamicModule } from '@nestjs/common';
+import { AuthService } from './auth.service';
+import { AuthOptions } from './auth.interface';
+import { AUTH_OPTIONS } from './auth.constants';
+
+@Module({})
+export class AuthModule {
+  static register(options: AuthOptions): DynamicModule {
+    return {
+      module: AuthModule,
+      providers: [
+        {
+          provide: AUTH_OPTIONS,
+          useValue: options
+        },
+        AuthService
+      ],
+      exports: [AuthService]
+    };
+  }
+}

libs/modules/src/auth/auth.service.ts

@@ -0,0 +1,41 @@
+import { Inject, Injectable } from '@nestjs/common';
+import { AuthOptions } from './auth.interface';
+import { AUTH_OPTIONS } from './auth.constants';
+import axios, { AxiosResponse } from 'axios';
+
+@Injectable()
+export class AuthService {
+  constructor(
+    @Inject(AUTH_OPTIONS)
+    private authOptions: AuthOptions
+  ) { }
+
+  async getToken(
+    grantType: string,
+    clientId: string,
+    clientSecret: string,
+    resource: string
+  ): Promise<string> {
+    try {
+
+      const { data }: AxiosResponse = await axios.post(
+        `https://login.microsoftonline.com/${this.authOptions.tenantId}/oauth2/token`,
+        {
+          grant_type: grantType,
+          client_id: clientId,
+          client_secret: clientSecret,
+          resource: resource
+        },
+        {
+          headers: {
+            'Content-Type': 'application/x-www-form-urlencoded'
+          }
+        }
+      );
+
+      return data.access_token;
+    } catch (error) {
+      return error;
+    }
+  }
+}

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

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

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

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

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

@@ -1,21 +0,0 @@
-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

@@ -1,34 +0,0 @@
-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

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

libs/modules/src/index.ts

@@ -1,2 +1,4 @@
-export * from './azAppConfig/az-app-config.module';
-export * from './azAppConfig/az-app-config.service';
+export * from './appConfig/app-config.module';
+export * from './appConfig/app-config.service';
+export * from './auth/auth.module';
+export * from './auth/auth.service'