Merge pull request #6 from iloire/add-pagination

Add recursive pagination request looping

lib/history.js

@@ -12,30 +12,45 @@
 const request = require('superagent');
 const endpoints = require('../util/endpoints');
 
-module.exports = (headers, account_id, start_date, end_date) => {
-    const endpoint = endpoints['history'](account_id);
-    return request
-        .get(`${endpoint}`)
-        .query({
-            'start-date': `${start_date}T07:00:00.000Z`
-        })
-        .query({
-            'end-date': `${end_date}T07:00:00.000Z`
-        })
-        .set(headers)
-        .send()
-        .then(res => {
-            const {
-                body: {
-                    data: {
-                        items
-                    }
-                }
-            } = res;
+const doRequest = (headers, endpoint, start_date, end_date, pageOffset) => {
+  return request
+    .get(`${endpoint}`)
+    .query({
+      'start-date': `${start_date}T07:00:00.000Z`
+    })
+    .query({
+      'end-date': `${end_date}T07:00:00.000Z`
+    })
+    .query({
+      'page-offset': pageOffset
+    })
+    .set(headers)
+    .send()
+    .then(res => {
+      const {
+        body: {
+          pagination,
+          data: {
+            items
+          }
+        }
+      } = res;
+      return { items, pagination };
+    })
+    .catch(err => {
+      return err.message;
+    });
+}
 
-            return items;
-        })
-        .catch(err => {
-            return err.message;
-        });
+module.exports = async (headers, account_id, start_date, end_date) => {
+  const endpoint = endpoints['history'](account_id);
+  const items = [];
+  let currentPage = -1;
+  let keepGoing = true;
+  while (keepGoing) { // run through pagination
+    const r = await doRequest(headers, endpoint, start_date, end_date, ++currentPage);
+    items.push.apply(items, r.items);
+    keepGoing = currentPage < r.pagination['total-pages'] - 1;
+  }
+  return items;
 }