feat(strava): add authentication support

packages/backend/src/apps/strava/auth/verify-credentials.ts

@@ -0,0 +1,28 @@
+import qs from 'qs';
+import { IGlobalVariable } from '@automatisch/types';
+
+const verifyCredentials = async ($: IGlobalVariable) => {
+  try {
+    const searchParams = {
+      client_id: $.auth.data.consumerKey,
+      client_secret: $.auth.data.consumerSecret,
+      code: $.auth.data.code,
+      grant_type: 'authorization_code',
+    };
+    const { data } = await $.http.post(
+      `/v3/oauth/token?${qs.stringify(searchParams)}a`,
+    );
+
+    await $.auth.set({
+      accessToken: data.access_token,
+      refreshToken: data.refresh_token,
+      tokenType: data.token_type,
+      userId: data.athlete.id,
+      screenName: `${data.athlete.firstname} ${data.athlete.lastname}`,
+    });
+  } catch (error) {
+    throw new Error('Error occured while verifying credentials!');
+  }
+};
+
+export default verifyCredentials;