Code files

Chapter10/standardizing-service-boilerplate/micro/webapp/routes/add.js

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+'use strict'
+
+const { Router } = require('express')
+const restify = require('restify')
+const router = Router()
+
+const {
+  ADDERSERVICE_SERVICE_HOST,
+  ADDERSERVICE_SERVICE_PORT
+} = process.env
+
+router.get('/', function (req, res) {
+  res.render('add', { first: 0, second: 0, result: 0 })
+})
+
+router.post('/calculate', function (req, res, next) {
+  const client = restify.createJSONClient({
+    url: `http://${ADDERSERVICE_SERVICE_HOST}:${ADDERSERVICE_SERVICE_PORT}`
+  })
+  const { first, second } = req.body
+  client.get(
+    `/add/${first}/${second}`,
+    (err, svcReq, svcRes, data) => {
+      if (err) {
+        next(err)
+        return
+      }
+      const { result } = data
+      res.render('add', { first, second, result })
+    }
+  )
+})
+
+module.exports = router