chore: adding shopify oxygen example

package.json

@@ -43,7 +43,8 @@
     "contract-tests",
     "packages/sdk/combined-browser",
     "packages/sdk/shopify-oxygen",
-    "packages/sdk/shopify-oxygen/contract-tests"
+    "packages/sdk/shopify-oxygen/contract-tests",
+    "packages/sdk/shopify-oxygen/example"
   ],
   "private": true,
   "scripts": {

packages/sdk/shopify-oxygen/example/README.md

@@ -0,0 +1,30 @@
+# LaunchDarkly sample Shopify Oxygen application
+
+We've built a simple console application that demonstrates how this LaunchDarkly SDK works.
+
+Below, you'll find the build procedure. For more comprehensive instructions, you can visit your [Quickstart page](https://app.launchdarkly.com/quickstart#/).
+<!-- NOTE: no official docs in LD website yet
+or the [{name of SDK} reference guide](https://docs.launchdarkly.com/sdk/{path to the page for that SDK}).
+-->
+
+This demo requires `Node >= 22.0.0` and `yarn@^3.4.1`
+
+## Build instructions
+
+1. Edit [`src/index.ts`](src/index.ts) and set the value of `sdkKey` to your LaunchDarkly SDK key.
+    ```
+    const sdkKey = "1234567890abcdef";
+    ```
+
+2. If there is an existing boolean feature flag in your LaunchDarkly project that
+   you want to evaluate, set `flagKey` to the flag key:
+    ```
+    const flagKey = "my-flag-key";
+    ```
+    > Otherwise, `sample-feature` will be used by default.
+
+3. On the command line, run `yarn start`, You should receive the message:
+    ```
+    The {flagKey} feature flag evaluates to {flagValue}.
+    ```
+The application will run continuously and react to the flag changes in LaunchDarkly.

packages/sdk/shopify-oxygen/example/app.js

@@ -0,0 +1,86 @@
+import {createMiniOxygen} from '@shopify/mini-oxygen';
+
+/**
+ * This is script is a simple runner for our example app. This script will run
+ * the compiled example on a local worker implementation to emulate a Oxygen worker runtime.
+ * 
+ * For the actual example implementation, see the src/index.ts file.
+ */
+
+const printValueAndBanner = (flagKey, flagValue) => {
+  console.log(`*** The '${flagKey}' feature flag evaluates to ${flagValue}.`);
+
+  if (flagValue) {
+    console.log(
+      `        ██
+            ██
+        ████████
+           ███████
+  ██ LAUNCHDARKLY █
+           ███████
+        ████████
+            ██
+          ██
+  `,
+    );
+  }
+}
+
+const main = async () => {
+  // NOTE: you will see logging coming from mini-oxygen's default request hook.
+  // https://github.com/Shopify/hydrogen/blob/5a38948133766e358c5f357f52562f6fdcfe7969/packages/mini-oxygen/src/worker/index.ts#L225
+  const miniOxygen = createMiniOxygen({
+    debug: false,
+    workers: [
+      {
+        name: 'main',
+        modules: true,
+        scriptPath: 'dist/index.js'
+      },
+    ],
+  });
+
+  miniOxygen.ready.then(() => {
+    console.log('Oxygen worker is started...');
+    console.log('Press "q" or Ctrl+C to quit...');
+
+    // Dispatch fetch every 5 seconds
+    const interval = setInterval(() => {
+      // NOTE: This is a bogus URL and will not be used in the actual fetch handler.
+      // please see the src/index.ts file for the actual fetch handler.
+      miniOxygen.dispatchFetch('https://localhost:8000')
+        .then(d => d.json())
+        .then(({flagValue, flagKey}) => {
+          console.clear();
+          printValueAndBanner(flagKey, flagValue);
+          console.log('Press "q" or Ctrl+C to quit...')
+        }).catch((err) => {
+          console.log('Error dispatching fetch:', err.message);
+          console.log('Press "q" or Ctrl+C to quit...')
+        });
+    }, 1000);
+
+    // Handle keypresses for cleanup
+    process.stdin.setRawMode(true);
+    process.stdin.resume();
+    process.stdin.setEncoding('utf8');
+
+    process.stdin.on('data', async (key) => {
+      // Handle Ctrl+C
+      if (key === '\u0003') {
+        clearInterval(interval);
+        await miniOxygen.dispose();
+        process.exit();
+      }
+
+      // Handle 'q' key
+      if (key === 'q' || key === 'Q') {
+        clearInterval(interval);
+        await miniOxygen.dispose();
+        process.exit();
+      }
+    });
+  });
+}
+
+main().catch(console.error);

packages/sdk/shopify-oxygen/example/package.json

@@ -0,0 +1,17 @@
+{
+  "name": "shopify-oxygen-sdk-example",
+  "packageManager": "[email protected]",
+  "scripts": {
+    "build": "tsup",
+    "clean": "rm -rf dist",
+    "start": "yarn clean && yarn build && yarn node app.js"
+  },
+  "type": "module",
+  "dependencies": {
+    "@launchdarkly/shopify-oxygen-sdk": "latest",
+    "@shopify/mini-oxygen": "^4.0.0"
+  },
+  "devDependencies": {
+    "tsup": "^8.5.1"
+  }
+}

packages/sdk/shopify-oxygen/example/src/index.ts

@@ -0,0 +1,31 @@
+import { init } from '@launchdarkly/shopify-oxygen-sdk';
+
+// Set sdkKey to your LaunchDarkly SDK key.
+const sdkKey = 'sample-sdk-key';
+
+// Set featureFlagKey to the feature flag key you want to evaluate.
+const flagKey = 'sample-feature';
+
+const context = {
+  kind: 'user',
+  key: 'example-user-key',
+  name: 'Sandy',
+};
+
+const sdkOptions = {
+  // See the README.md file for more information on the options.
+};
+
+export default {
+  async fetch() {
+    const ldClient = await init(sdkKey, sdkOptions);
+    await ldClient.waitForInitialization({ timeout: 10 });
+    const flagValue = await ldClient.variation(flagKey, context, false);
+
+    // Flush events and close the client
+    ldClient.flush();
+    ldClient.close();
+
+    return new Response(JSON.stringify({ flagKey, flagValue }), { status: 200 });
+  },
+};

packages/sdk/shopify-oxygen/example/tsconfig.json

@@ -0,0 +1,20 @@
+{
+  "compilerOptions": {
+    "allowSyntheticDefaultImports": true,
+    "declaration": true,
+    "declarationMap": true,
+    "lib": ["es6"],
+    "module": "es2022",
+    "moduleResolution": "node",
+    "noImplicitOverride": true,
+    "outDir": "dist",
+    "resolveJsonModule": true,
+    "rootDir": ".",
+    "skipLibCheck": true,
+    "sourceMap": true,
+    "strict": true,
+    "stripInternal": true,
+    "target": "ES2022",
+  },
+  "exclude": ["tsup.config.ts"]
+}

packages/sdk/shopify-oxygen/example/tsup.config.ts

@@ -0,0 +1,16 @@
+// It is a dev dependency and the linter doesn't understand.
+// @ts-ignore - tsup is a dev dependency installed at runtime
+// eslint-disable-next-line import/no-extraneous-dependencies
+import { defineConfig } from 'tsup';
+
+export default defineConfig({
+  entry: {
+    index: 'src/index.ts',
+  },
+  minify: true,
+  format: ['esm'],
+  splitting: false,
+  clean: true,
+  noExternal: ['@launchdarkly/shopify-oxygen-sdk'],
+  dts: true,
+});