docs(azure): update example and readme to use Entra ID (openai#857)

README.md

@@ -367,11 +367,18 @@ To use this library with [Azure OpenAI](https://learn.microsoft.com/en-us/azure/
 class instead of the `OpenAI` class.
 
 > [!IMPORTANT]
-> The Azure API shape differs from the core API shape which means that the static types for responses / params
+> The Azure API shape slightly differs from the core API shape which means that the static types for responses / params
 > won't always be correct.
 
 ```ts
-const openai = new AzureOpenAI();
+import { AzureOpenAI } from 'openai';
+import { getBearerTokenProvider, DefaultAzureCredential } from '@azure/identity';
+
+const credential = new DefaultAzureCredential();
+const scope = 'https://cognitiveservices.azure.com/.default';
+const azureADTokenProvider = getBearerTokenProvider(credential, scope);
+
+const openai = new AzureOpenAI({ azureADTokenProvider });
 
 const result = await openai.chat.completions.create({
   model: 'gpt-4-1106-preview',

examples/azure.ts

@@ -1,14 +1,19 @@
 #!/usr/bin/env -S npm run tsn -T
 
 import { AzureOpenAI } from 'openai';
+import { getBearerTokenProvider, DefaultAzureCredential } from '@azure/identity';
 
 // Corresponds to your Model deployment within your OpenAI resource, e.g. gpt-4-1106-preview
 // Navigate to the Azure OpenAI Studio to deploy a model.
 const deployment = 'gpt-4-1106-preview';
 
-// Make sure to set both AZURE_OPENAI_ENDPOINT with the endpoint of your Azure resource and AZURE_OPENAI_API_KEY with the API key.
-// You can find both information in the Azure Portal.
-const openai = new AzureOpenAI();
+const credential = new DefaultAzureCredential();
+const scope = 'https://cognitiveservices.azure.com/.default';
+const azureADTokenProvider = getBearerTokenProvider(credential, scope);
+
+// Make sure to set AZURE_OPENAI_ENDPOINT with the endpoint of your Azure resource.
+// You can find it in the Azure Portal.
+const openai = new AzureOpenAI({ azureADTokenProvider });
 
 async function main() {
   console.log('Non-streaming:');

examples/package.json

@@ -9,7 +9,8 @@
     "express": "^4.18.2",
     "next": "^14.1.1",
     "openai": "file:..",
-    "zod-to-json-schema": "^3.21.4"
+    "zod-to-json-schema": "^3.21.4",
+    "@azure/identity": "^4.2.0"
   },
   "devDependencies": {
     "@types/body-parser": "^1.19.3",