backend-*-api: updates auth APIs for BEP changes

Co-authored-by: Fredrik Adelöw <freben@gmail.com>
Co-authored-by: Camila Belo <camilaibs@gmail.com>
Signed-off-by: Patrik Oldsberg <poldsberg@gmail.com>

packages/backend-plugin-api/src/services/definitions/AuthService.ts

@@ -70,10 +70,12 @@ export interface AuthService {
     type: TType,
   ): credentials is BackstageCredentials<BackstagePrincipalTypes[TType]>;
 
-  getOwnCredentials(): Promise<BackstageCredentials<BackstageServicePrincipal>>;
+  getOwnServiceCredentials(): Promise<
+    BackstageCredentials<BackstageServicePrincipal>
+  >;
 
-  // TODO: should the caller provide the target plugin ID?
-  issueServiceToken(options: {
-    forward: BackstageCredentials;
+  getPluginRequestToken(options: {
+    onBehalfOf: BackstageCredentials;
+    targetPluginId: string;
   }): Promise<{ token: string }>;
 }

packages/backend-plugin-api/src/services/definitions/HttpAuthService.ts

@@ -27,9 +27,5 @@ export interface HttpAuthService {
     },
   ): Promise<BackstageCredentials<BackstagePrincipalTypes[TAllowed]>>;
 
-  requestHeaders(options: {
-    forward: BackstageCredentials;
-  }): Promise<Record<string, string>>;
-
   issueUserCookie(res: Response): Promise<void>;
 }