Add DevOps helpers module with API token retrieval and client functions

src/devops.d.ts

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+//

src/devops.js

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+/**
+ * A DevOps helpers module.
+ */
+
+import { loginInteractive } from "./azure.js";
+import * as azdev from "azure-devops-node-api";
+
+const AZURE_DEVOPS_SCOPES = ["https://app.vssps.visualstudio.com/.default"];
+
+/**
+ * Get Azure DevOps API token.
+ */
+
+export async function getDevOpsApiToken(tenantId, clientId) {
+    const result = await loginInteractive({
+        tenantId,
+        clientId,
+        scopes: AZURE_DEVOPS_SCOPES,
+    });
+
+    const accessToken = result?.accessToken;
+
+    if(!accessToken) {
+        throw new Error("Failed to obtain Azure DevOps API token");
+    }
+
+    return accessToken;
+}
+
+/**
+ * Get Azure DevOps clients - Core and Git.
+ *
+ * @param { string } orgUrl - The Azure DevOps organization URL
+ * @param { string } tenantId - The Azure AD tenant ID
+ * @param { string } clientId - The Azure AD client ID
+ * @returns 
+ */
+
+export async function getDevOpsClients(orgUrl, tenantId, clientId) {
+    const accessToken = await getDevOpsApiToken(tenantId, clientId);
+
+    const authHandler = azdev.getBearerHandler(accessToken);
+    const connection = new azdev.WebApi(orgUrl, authHandler);
+
+    const coreClient = await connection.getCoreApi();
+    const gitClient = await connection.getGitApi();
+
+    return { coreClient, gitClient };
+}