Migrate Template project to use CoreV2 (#19748)

This PR migrate `sdk/template/template` from using `@azure/core-http` to use `@azure/core-client` and `@azure/core-rest-pipeline`.

Followed instructions on [this migration guide](https://github.com/Azure/autorest.typescript/wiki/%60core-http%60-dependency-migration-to-%60core-client%60-%60core-rest-pipeline%60)

More information about Azure Core V2 can be found [here](https://github.com/Azure/azure-sdk-for-js/blob/master/sdk/core/core-rest-pipeline/documentation/core2.md).

sdk/template/template/package.json

@@ -10,11 +10,15 @@
     "constantPaths": [
       {
         "path": "src/generated/generatedClientContext.ts",
-        "prefix": "packageVersion"
+        "prefix": "packageDetails"
       },
       {
         "path": "src/constants.ts",
         "prefix": "SDK_VERSION"
+      },
+      {
+        "path": "swagger/README.md",
+        "prefix": "package-version"
       }
     ]
   },
@@ -78,7 +82,8 @@
   "prettier": "@azure/eslint-plugin-azure-sdk/prettier.json",
   "dependencies": {
     "@azure/core-auth": "^1.3.0",
-    "@azure/core-http": "^2.0.0",
+    "@azure/core-client": "^1.4.0",
+    "@azure/core-rest-pipeline": "^1.4.0",
     "@azure/core-tracing": "1.0.0-preview.14",
     "@azure/logger": "^1.0.0",
     "tslib": "^2.2.0"

sdk/template/template/review/template.api.md

@@ -4,9 +4,9 @@
 
 ```ts
 
-import { OperationOptions } from '@azure/core-http';
-import { PipelineOptions } from '@azure/core-http';
-import { TokenCredential } from '@azure/core-http';
+import { CommonClientOptions } from '@azure/core-client';
+import { OperationOptions } from '@azure/core-client';
+import { TokenCredential } from '@azure/core-auth';
 
 // @public
 export class ConfigurationClient {
@@ -16,7 +16,7 @@ export class ConfigurationClient {
 }
 
 // @public
-export interface ConfigurationClientOptions extends PipelineOptions {
+export interface ConfigurationClientOptions extends CommonClientOptions {
 }
 
 // @public (undocumented)
@@ -38,7 +38,6 @@ export interface GetConfigurationSettingOptions extends OperationOptions {
     onlyIfChanged?: boolean;
 }
 
-
 // (No @packageDocumentation comment for this package)
 
 ```

sdk/template/template/src/configurationClient.ts

@@ -3,13 +3,12 @@
 
 import { ConfigurationSetting, GeneratedClient } from "./generated";
 import {
-  InternalPipelineOptions,
+  CommonClientOptions,
   OperationOptions,
-  PipelineOptions,
-  TokenCredential,
-  bearerTokenAuthenticationPolicy,
-  createPipelineFromOptions,
-} from "@azure/core-http";
+  InternalClientPipelineOptions,
+} from "@azure/core-client";
+import { bearerTokenAuthenticationPolicy } from "@azure/core-rest-pipeline";
+import { TokenCredential } from "@azure/core-auth";
 import { TracingClient, createTracingClient } from "@azure/core-tracing";
 import { SDK_VERSION } from "./constants";
 import { logger } from "./logger";
@@ -36,7 +35,7 @@ export interface GetConfigurationSettingOptions extends OperationOptions {
 /**
  * Client options used to configure App Configuration API requests.
  */
-export interface ConfigurationClientOptions extends PipelineOptions {
+export interface ConfigurationClientOptions extends CommonClientOptions {
   // Any custom options configured at the client level go here.
 }
 
@@ -69,22 +68,14 @@ export class ConfigurationClient {
     credential: TokenCredential,
     options: ConfigurationClientOptions = {}
   ) {
-    // The below code helps us set a proper User-Agent header on all requests
-    const libInfo = `azsdk-js-template-template/${SDK_VERSION}`;
-    if (!options.userAgentOptions) {
-      options.userAgentOptions = {};
-    }
-    if (options.userAgentOptions.userAgentPrefix) {
-      options.userAgentOptions.userAgentPrefix = `${options.userAgentOptions.userAgentPrefix} ${libInfo}`;
-    } else {
-      options.userAgentOptions.userAgentPrefix = libInfo;
-    }
-
     // The AAD scope for an API is usually the baseUri + "/.default", but it
     // may be different for your service.
-    const authPolicy = bearerTokenAuthenticationPolicy(credential, `${endpointUrl}/.default`);
+    const authPolicy = bearerTokenAuthenticationPolicy({
+      credential,
+      scopes: `${endpointUrl}/.default`,
+    });
 
-    const internalPipelineOptions: InternalPipelineOptions = {
+    const internalClientPipelineOptions: InternalClientPipelineOptions = {
       ...options,
       deserializationOptions: {
         expectedContentTypes: {
@@ -102,13 +93,13 @@ export class ConfigurationClient {
           logger: logger.info,
           // This array contains header names we want to log that are not already
           // included as safe. Unknown/unsafe headers are logged as "<REDACTED>".
-          allowedHeaderNames: ["x-ms-correlation-request-id"],
+          additionalAllowedHeaderNames: ["x-ms-correlation-request-id"],
         },
       },
     };
-    const pipeline = createPipelineFromOptions(internalPipelineOptions, authPolicy);
 
-    this.client = new GeneratedClient(endpointUrl, pipeline);
+    this.client = new GeneratedClient(endpointUrl, internalClientPipelineOptions);
+    this.client.pipeline.addPolicy(authPolicy);
     this.tracingClient = createTracingClient({
       // The name of the resource provider requests are made against, as described in
       // https://github.com/Azure/azure-sdk/blob/main/docs/tracing/distributed-tracing-conventions.yml#L11-L15