backend-app-api: use ConfigSources

Signed-off-by: Patrik Oldsberg <poldsberg@gmail.com>

.changeset/modern-pumpkins-join.md

@@ -0,0 +1,5 @@
+---
+'@backstage/backend-app-api': patch
+---
+
+Switch `configServiceFactory` to use `ConfigSources` from `@backstage/config-loader` to load config.

packages/backend-app-api/api-report.md

@@ -26,6 +26,7 @@ import { LoggerService } from '@backstage/backend-plugin-api';
 import { PermissionsService } from '@backstage/backend-plugin-api';
 import { PluginDatabaseManager } from '@backstage/backend-common';
 import { PluginEndpointDiscovery } from '@backstage/backend-common';
+import { RemoteConfigSourceOptions } from '@backstage/config-loader';
 import { RequestHandler } from 'express';
 import { RequestListener } from 'http';
 import { RootHttpRouterService } from '@backstage/backend-plugin-api';
@@ -54,7 +55,7 @@ export const cacheServiceFactory: () => ServiceFactory<CacheClient, 'plugin'>;
 // @public (undocumented)
 export interface ConfigFactoryOptions {
   argv?: string[];
-  remote?: LoadConfigOptionsRemote;
+  remote?: Pick<RemoteConfigSourceOptions, 'reloadIntervalSeconds'>;
 }
 
 // @public (undocumented)

packages/backend-app-api/src/services/implementations/config/configServiceFactory.ts

@@ -18,8 +18,10 @@ import {
   coreServices,
   createServiceFactory,
 } from '@backstage/backend-plugin-api';
-import { LoadConfigOptionsRemote } from '@backstage/config-loader';
-import { loadBackendConfig } from '../../../config';
+import {
+  ConfigSources,
+  RemoteConfigSourceOptions,
+} from '@backstage/config-loader';
 
 /** @public */
 export interface ConfigFactoryOptions {
@@ -31,7 +33,7 @@ export interface ConfigFactoryOptions {
   /**
    * Enables and sets options for remote configuration loading.
    */
-  remote?: LoadConfigOptionsRemote;
+  remote?: Pick<RemoteConfigSourceOptions, 'reloadIntervalSeconds'>;
 }
 
 /** @public */
@@ -39,10 +41,13 @@ export const configServiceFactory = createServiceFactory(
   (options?: ConfigFactoryOptions) => ({
     service: coreServices.config,
     deps: {},
-    async factory({}) {
-      const { argv = process.argv, remote } = options ?? {};
-      const { config } = await loadBackendConfig({ argv, remote });
-      return config;
+    async factory() {
+      const source = ConfigSources.default({
+        argv: options?.argv,
+        remote: options?.remote,
+      });
+      console.log(`Loading config from ${source}`);
+      return await ConfigSources.toConfig(source);
     },
   }),
 );