Refactor Slack signin codE

server/slack.js

@@ -0,0 +1,34 @@
+// @flow
+import fetch from 'isomorphic-fetch';
+import querystring from 'querystring';
+import { httpErrors } from './errors';
+
+const SLACK_API_URL = 'https://slack.com/api';
+
+export async function request(endpoint: string, body: Object) {
+  let data;
+  try {
+    const response = await fetch(
+      `${SLACK_API_URL}/${endpoint}?${querystring.stringify(body)}`
+    );
+    data = await response.json();
+  } catch (e) {
+    throw httpErrors.BadRequest();
+  }
+  console.log('DATA', data);
+  if (!data.ok) throw httpErrors.BadRequest(data.error);
+
+  return data;
+}
+
+export async function oauthAccess(
+  code: string,
+  redirect_uri: string = `${process.env.URL || ''}/auth/slack`
+) {
+  return request('oauth.access', {
+    client_id: process.env.SLACK_KEY,
+    client_secret: process.env.SLACK_SECRET,
+    redirect_uri: `${process.env.URL || ''}/auth/slack`,
+    code,
+  });
+}