Video 93: Promise Chaining

task-manager/playground/promise-chaining.js

@@ -0,0 +1,13 @@
+require('../src/db/mongoose')
+const User = require('../src/models/user')
+
+// 5e519e3404357c00d0777aee
+
+User.findByIdAndUpdate('5e52f2612f736700e5a20797', { age: 1 }).then((user) => {
+  console.log(user)
+  return User.countDocuments({ age: 1 })
+}).then((result) => {
+  console.log(result)
+}).catch((e) => {
+  console.log(e)
+})

task-manager/src/db/mongoose.js

@@ -2,5 +2,6 @@ const mongoose = require('mongoose')
 
 mongoose.connect('mongodb://localhost:27017/task-manager-api', {
   useNewUrlParser: true,
-  useCreateIndex: true
+  useCreateIndex: true,
+  useFindAndModify: false
 })