From b157c2eb1c379a08e8687a55c5d342c3cc7560ec Mon Sep 17 00:00:00 2001
From: Isaiah Thiessen <isaiah.thiessen@telus.com>
Date: Tue, 31 May 2022 11:15:17 -0700
Subject: [PATCH] Use identityApi to provide auth token for pagerduty API
 calls.

Signed-off-by: Isaiah Thiessen <isaiah.thiessen@telus.com>
Co-authored-by: Joel Cayne <joel.cayne@telus.com>
---
 .changeset/eight-ducks-beg.md       |  5 +++++
 plugins/pagerduty/api-report.md     |  2 ++
 plugins/pagerduty/src/api/client.ts | 10 +++++++++-
 plugins/pagerduty/src/api/types.ts  |  3 ++-
 plugins/pagerduty/src/plugin.ts     | 11 ++++++++---
 5 files changed, 26 insertions(+), 5 deletions(-)
 create mode 100644 .changeset/eight-ducks-beg.md

diff --git a/.changeset/eight-ducks-beg.md b/.changeset/eight-ducks-beg.md
new file mode 100644
index 0000000000..729c1992fa
--- /dev/null
+++ b/.changeset/eight-ducks-beg.md
@@ -0,0 +1,5 @@
+---
+'@backstage/plugin-pagerduty': patch
+---
+
+Use identityApi to provide auth token for pagerduty API calls.
diff --git a/plugins/pagerduty/api-report.md b/plugins/pagerduty/api-report.md
index bd26531da6..86b917c6eb 100644
--- a/plugins/pagerduty/api-report.md
+++ b/plugins/pagerduty/api-report.md
@@ -10,6 +10,7 @@ import { BackstagePlugin } from '@backstage/core-plugin-api';
 import { ConfigApi } from '@backstage/core-plugin-api';
 import { DiscoveryApi } from '@backstage/core-plugin-api';
 import { Entity } from '@backstage/catalog-model';
+import { IdentityApi } from '@backstage/core-plugin-api';
 import { ReactNode } from 'react';
 
 // Warning: (ae-missing-release-tag) "EntityPagerDutyCard" is exported by the package, but it is missing a release tag (@alpha, @beta, @public, or @internal)
@@ -45,6 +46,7 @@ export class PagerDutyClient implements PagerDutyApi {
   static fromConfig(
     configApi: ConfigApi,
     discoveryApi: DiscoveryApi,
+    identityApi: IdentityApi,
   ): PagerDutyClient;
   // Warning: (ae-forgotten-export) The symbol "ChangeEvent" needs to be exported by the entry point index.d.ts
   //
diff --git a/plugins/pagerduty/src/api/client.ts b/plugins/pagerduty/src/api/client.ts
index 81d3792ecf..43c6165c91 100644
--- a/plugins/pagerduty/src/api/client.ts
+++ b/plugins/pagerduty/src/api/client.ts
@@ -29,6 +29,7 @@ import {
   createApiRef,
   DiscoveryApi,
   ConfigApi,
+  IdentityApi,
 } from '@backstage/core-plugin-api';
 
 export class UnauthorizedError extends Error {}
@@ -38,13 +39,18 @@ export const pagerDutyApiRef = createApiRef<PagerDutyApi>({
 });
 
 export class PagerDutyClient implements PagerDutyApi {
-  static fromConfig(configApi: ConfigApi, discoveryApi: DiscoveryApi) {
+  static fromConfig(
+    configApi: ConfigApi,
+    discoveryApi: DiscoveryApi,
+    identityApi: IdentityApi,
+  ) {
     const eventsBaseUrl: string =
       configApi.getOptionalString('pagerDuty.eventsBaseUrl') ??
       'https://events.pagerduty.com/v2';
     return new PagerDutyClient({
       eventsBaseUrl,
       discoveryApi,
+      identityApi,
     });
   }
   constructor(private readonly config: ClientApiConfig) {}
@@ -124,11 +130,13 @@ export class PagerDutyClient implements PagerDutyApi {
   }
 
   private async getByUrl<T>(url: string): Promise<T> {
+    const { token: idToken } = await this.config.identityApi.getCredentials();
     const options = {
       method: 'GET',
       headers: {
         Accept: 'application/vnd.pagerduty+json;version=2',
         'Content-Type': 'application/json',
+        ...(idToken && { Authorization: `Bearer ${idToken}` }),
       },
     };
     const response = await this.request(url, options);
diff --git a/plugins/pagerduty/src/api/types.ts b/plugins/pagerduty/src/api/types.ts
index a11cc9d63b..8acd24f033 100644
--- a/plugins/pagerduty/src/api/types.ts
+++ b/plugins/pagerduty/src/api/types.ts
@@ -15,7 +15,7 @@
  */
 
 import { Incident, ChangeEvent, OnCall, Service } from '../components/types';
-import { DiscoveryApi } from '@backstage/core-plugin-api';
+import { DiscoveryApi, IdentityApi } from '@backstage/core-plugin-api';
 
 export type TriggerAlarmRequest = {
   integrationKey: string;
@@ -74,6 +74,7 @@ export type OnCallsResponse = {
 export type ClientApiConfig = {
   eventsBaseUrl?: string;
   discoveryApi: DiscoveryApi;
+  identityApi: IdentityApi;
 };
 
 export type RequestOptions = {
diff --git a/plugins/pagerduty/src/plugin.ts b/plugins/pagerduty/src/plugin.ts
index d1c4e6d35b..32093015ff 100644
--- a/plugins/pagerduty/src/plugin.ts
+++ b/plugins/pagerduty/src/plugin.ts
@@ -21,6 +21,7 @@ import {
   discoveryApiRef,
   configApiRef,
   createComponentExtension,
+  identityApiRef,
 } from '@backstage/core-plugin-api';
 
 export const rootRouteRef = createRouteRef({
@@ -32,9 +33,13 @@ export const pagerDutyPlugin = createPlugin({
   apis: [
     createApiFactory({
       api: pagerDutyApiRef,
-      deps: { discoveryApi: discoveryApiRef, configApi: configApiRef },
-      factory: ({ configApi, discoveryApi }) =>
-        PagerDutyClient.fromConfig(configApi, discoveryApi),
+      deps: {
+        discoveryApi: discoveryApiRef,
+        configApi: configApiRef,
+        identityApi: identityApiRef,
+      },
+      factory: ({ configApi, discoveryApi, identityApi }) =>
+        PagerDutyClient.fromConfig(configApi, discoveryApi, identityApi),
     }),
   ],
 });