pagination capability for openPRs API

Author: swarajpure

controllers/pullRequestsController.js

@@ -106,7 +106,7 @@ const getStalePRs = async (req, res) => {
  */
 const getOpenPRs = async (req, res) => {
   try {
-    const { data } = await githubService.fetchOpenPRs()
+    const { data } = await githubService.fetchOpenPRs((req.query.page) || 1)
 
     if (data.total_count) {
       const allPRs = []

services/githubService.js

@@ -100,15 +100,15 @@ const fetchStalePRs = async () => {
  * Fetches the latest 10 open PRs
  * @todo fetch N from query params
  */
-const fetchOpenPRs = async () => {
+const fetchOpenPRs = async (pageNumber) => {
   try {
     const url = getGithubURL({
       is: 'open'
     }, {
       sort: 'created',
       order: 'desc',
       per_page: 10,
-      page: 1
+      page: pageNumber
     })
     return getFetch(url)
   } catch (err) {