feat: Add wrapper support. (#526)

For contract test implementation see:
launchdarkly/sdk-test-harness#223

contract-tests/index.js

@@ -35,6 +35,7 @@ app.get('/', (req, res) => {
       'inline-context',
       'anonymous-redaction',
       'evaluation-hooks',
+      'wrapper'
     ],
   });
 });

contract-tests/sdkClientEntity.js

@@ -67,6 +67,14 @@ export function makeSdkConfig(options, tag) {
       (hook) => new TestHook(hook.name, hook.callbackUri, hook.data, hook.errors),
     );
   }
+  if (options.wrapper) {
+    if(options.wrapper.name) {
+      cf.wrapperName = options.wrapper.name;
+    }
+    if(options.wrapper.version) {
+      cf.wrapperVersion = options.wrapper.version;
+    }
+  }
   return cf;
 }
 

packages/sdk/server-node/__tests__/platform/NodeInfo.test.ts

@@ -3,7 +3,7 @@ import * as os from 'os';
 import NodeInfo from '../../src/platform/NodeInfo';
 
 describe('given an information instance', () => {
-  const info = new NodeInfo();
+  const info = new NodeInfo({});
 
   it('can get platform information', () => {
     const data = info.platformData();
@@ -25,8 +25,14 @@ describe('given an information instance', () => {
   });
 });
 
+test('it supports wrapper name and version', () => {
+  const info = new NodeInfo({ wrapperName: 'the-wrapper', wrapperVersion: 'the-version' });
+  expect(info.sdkData().wrapperName).toEqual('the-wrapper');
+  expect(info.sdkData().wrapperVersion).toEqual('the-version');
+});
+
 describe('given an information instance with mock data', () => {
-  const info = new NodeInfo();
+  const info = new NodeInfo({});
 
   it('can get platform information', () => {
     const platformSpy = jest.spyOn(os, 'platform');

packages/sdk/server-node/src/platform/NodeInfo.ts

@@ -19,6 +19,7 @@ function processPlatformName(name: string): string {
 }
 
 export default class NodeInfo implements platform.Info {
+  constructor(private readonly config: { wrapperName?: string; wrapperVersion?: string }) {}
   platformData(): platform.PlatformData {
     return {
       os: {
@@ -38,7 +39,8 @@ export default class NodeInfo implements platform.Info {
       name: packageJson.name,
       version: packageJson.version,
       userAgentBase: 'NodeJSClient',
-      // No wrapper name/version at the moment.
+      wrapperName: this.config.wrapperName,
+      wrapperVersion: this.config.wrapperVersion,
     };
   }
 }

packages/sdk/server-node/src/platform/NodePlatform.ts

@@ -6,7 +6,7 @@ import NodeInfo from './NodeInfo';
 import NodeRequests from './NodeRequests';
 
 export default class NodePlatform implements platform.Platform {
-  info: platform.Info = new NodeInfo();
+  info: platform.Info;
 
   fileSystem?: platform.Filesystem | undefined = new NodeFilesystem();
 
@@ -15,6 +15,7 @@ export default class NodePlatform implements platform.Platform {
   requests: platform.Requests;
 
   constructor(options: LDOptions) {
+    this.info = new NodeInfo(options);
     this.requests = new NodeRequests(options.tlsParams, options.proxyOptions, options.logger);
   }
 }