Merge pull request #670 from XeroAPI/OAS-version-update-6.3.0

OAS version update - 6.3.0

.github/octokit/index.js

@@ -0,0 +1,27 @@
+import {Octokit} from "@octokit/rest";
+import {createAppAuth} from "@octokit/auth-app"
+
+export const getAccessToken = async () => {
+
+ const {GITHUB_APP_ID, GITHUB_APP_PRIVATE_KEY} = process.env
+
+ const octoKitInstance = new Octokit({
+  authStrategy: createAppAuth,
+  auth: {
+   appId: GITHUB_APP_ID,
+   privateKey: GITHUB_APP_PRIVATE_KEY
+  }
+ });
+
+ const {data: installations} = await octoKitInstance.rest.apps.listInstallations()
+
+ if(!installations.length) {
+   throw new Error("No Installations found for this github app")
+ }
+
+ const installationId = installations[0].id;
+
+ const installationAccessToken = await octoKitInstance.rest.apps.createInstallationAccessToken({installation_id: installationId})
+
+ return installationAccessToken.data.token
+}