Moving Google Analytics requests to backend (#154)

* Moving Google Analytics requetss to backend

* Requested Changes

* Minor changes

Author: AuraOfDivinity

app.js

@@ -22,6 +22,7 @@ const commentRouter = require('./app/routes/comment')
 const projectRouter = require('./app/routes/project')
 const notificationRouter = require('./app/routes/notification')
 const proposalRouter = require('./app/routes/proposal')
+const analyticsRouter = require('./app/routes/analytics')
 
 const app = express()
 const server = require('http').Server(app)
@@ -81,6 +82,7 @@ app.use('/shortUrl', shortUrlRouter)
 app.use('/comment', commentRouter)
 app.use('/project', projectRouter)
 app.use('/proposal', proposalRouter)
+app.use('/analytics', analyticsRouter)
 
 // catch 404 and forward to error handler
 app.use(function (req, res, next) {

app/controllers/analytics.js

@@ -0,0 +1,104 @@
+const { google } = require('googleapis')
+const analytics = google.analytics('v3')
+const jwt = require('../../config/gAnalytics')
+const viewId = process.env.VIEW_ID
+const HANDLER = require('../utils/response-helper')
+const HttpStatus = require('http-status-codes')
+
+module.exports = {
+  getBrowser: async (req, res, next) => {
+    const { startDate, endDate, proposalId } = req.body
+    console.log(req.body)
+    try {
+      const result = await analytics.data.ga.get({
+        auth: jwt,
+        ids: `ga:${viewId}`,
+        metrics: 'ga:users',
+        dimensions: ['ga:browser'],
+        'start-date': startDate,
+        'end-date': endDate,
+        filters: `ga:pagePath==/${proposalId}`
+      })
+      res.status(HttpStatus.OK).json({ analytics: result.data.rows })
+    } catch (error) {
+      HANDLER.handleError(res, error)
+    }
+  },
+
+  getCountries: async (req, res, next) => {
+    const { startDate, endDate, proposalId } = req.body
+
+    try {
+      const result = await analytics.data.ga.get({
+        auth: jwt,
+        ids: `ga:${viewId}`,
+        metrics: 'ga:users',
+        dimensions: ['ga:country'],
+        'start-date': startDate,
+        'end-date': endDate,
+        filters: `ga:pagePath==/${proposalId}`
+      })
+      res.status(HttpStatus.OK).json({ analytics: result.data.rows })
+    } catch (error) {
+      HANDLER.handleError(res, error)
+    }
+  },
+
+  getDevice: async (req, res, next) => {
+    const { startDate, endDate, proposalId } = req.body
+
+    try {
+      const result = await analytics.data.ga.get({
+        auth: jwt,
+        ids: `ga:${viewId}`,
+        metrics: 'ga:users',
+        dimensions: ['ga:deviceCategory'],
+        'start-date': startDate,
+        'end-date': endDate,
+        filters: `ga:pagePath==/${proposalId}`
+      })
+      res.status(HttpStatus.OK).json({ analytics: result.data.rows })
+    } catch (error) {
+      HANDLER.handleError(res, error)
+    }
+  },
+
+  getTopProposals: async (req, res, next) => {
+    const { startDate, endDate } = req.body
+
+    try {
+      const result = await analytics.data.ga.get({
+        auth: jwt,
+        ids: `ga:${viewId}`,
+        metrics: 'ga:pageviews',
+        dimensions: ['ga:pagePath'],
+        'start-date': startDate,
+        'end-date': endDate,
+        filters: 'ga:pagePath!=/homepage'
+      })
+      res.status(HttpStatus.OK).json({ analytics: result.data })
+    } catch (error) {
+      HANDLER.handleError(res, error)
+    }
+  },
+
+  getProposalViews: async (req, res, next) => {
+    const { startDate, endDate, proposalId } = req.body
+
+    try {
+      const result = await analytics.data.ga.get({
+        auth: jwt,
+        ids: `ga:${viewId}`,
+        metrics: 'ga:pageviews',
+        dimensions: ['ga:date'],
+        'start-date': startDate,
+        'end-date': endDate,
+        filters: `ga:pagePath==/${proposalId}`
+      })
+
+      res.status(HttpStatus.OK).json({ analytics: result.data.rows })
+    } catch (error) {
+      HANDLER.handleError(res, error)
+    }
+  }
+}

app/routes/analytics.js

@@ -0,0 +1,22 @@
+const express = require('express')
+const router = express.Router()
+const analyticsController = require('../controllers/analytics')
+const auth = require('../middleware/auth')
+const isUnderMaintenance = require('../middleware/maintenance')
+
+// Get Browser analytics
+router.post('/browser', isUnderMaintenance, auth, analyticsController.getBrowser)
+
+// Get country analytics
+router.post('/countries', isUnderMaintenance, auth, analyticsController.getCountries)
+
+// Get Device analytics
+router.post('/device', isUnderMaintenance, auth, analyticsController.getDevice)
+
+// Get most viewed Proposals
+router.post('/mostviewed', isUnderMaintenance, auth, analyticsController.getTopProposals)
+
+// Get Views of a specific proposal
+router.post('/views', isUnderMaintenance, auth, analyticsController.getProposalViews)
+
+module.exports = router

config/gAnalytics.js

@@ -0,0 +1,10 @@
+const { google } = require('googleapis')
+const clientEMail = process.env.CLIENT_EMAIL
+const privateKey = process.env.PRIVATE_KEY
+const scope = process.env.SCOPE
+
+module.exports = new google.auth.JWT({
+  email: clientEMail,
+  key: privateKey,
+  scopes: [scope]
+})