feat: implement Spotify connection

packages/backend/src/apps/spotify/common/add-auth-header.ts

@@ -0,0 +1,12 @@
+import { TBeforeRequest } from '@automatisch/types';
+
+const addAuthHeader: TBeforeRequest = ($, requestConfig) => {
+  if ($.auth.data?.accessToken) {
+    const authorizationHeader = `Bearer ${$.auth.data.accessToken}`;
+    requestConfig.headers.Authorization = authorizationHeader;
+  }
+
+  return requestConfig;
+};
+
+export default addAuthHeader;

packages/backend/src/apps/spotify/common/get-current-user.ts

@@ -0,0 +1,10 @@
+import { IGlobalVariable, IJSONObject } from '@automatisch/types';
+
+const getCurrentUser = async ($: IGlobalVariable): Promise<IJSONObject> => {
+  const response = await $.http.get('/v1/me');
+  const currentUser = response.data;
+
+  return currentUser;
+};
+
+export default getCurrentUser;

packages/backend/src/apps/spotify/common/scopes.ts

@@ -0,0 +1,13 @@
+const scopes = [
+  'user-follow-read',
+  'playlist-read-private',
+  'playlist-read-collaborative',
+  'user-library-read',
+  'playlist-modify-public',
+  'playlist-modify-private',
+  'user-library-modify',
+  'user-follow-modify',
+  'user-follow-read',
+];
+
+export default scopes;