Serverless Application Development with MongoDB Stitch

Introduction to MongoDB and
Serverless App Development
with MongoDB Stitch
Michael Lynn
Worldwide Director of Developer Relations

@mlynn
Michael Lynn
{
‘name’: ‘Michael Lynn’,
‘title’: ‘Global DevRel@MongoDB’,
‘company’: ‘MongoDB’,
‘location: ‘Philadelphia, PA’,
‘twitter’: ‘@mlynn,
‘previous’: [
{ ‘title’: ‘Engineer’ },
{ ‘title’: ‘Developer’}
]
}
Who is this guy?

@mlynn
My goals for today
1. What is MongoDB Stitch
2. What is MongoDB Atlas
3. What does Idiomatic mean?
4. What’s Michael’s Twitter
Handle?
5. What authentication providers
does MongoDB Support?
6. Bonus: How does Stitch
enable more granular access
control?

@mlynn
“We set out to build a database that we would
want to use, so that whenever developers
wanted to build an application, they could
focus on the application, not on working
around the database.”
- Eliot Horowitz

@mlynn
Document Model
{
first_name: ‘Paul’,
surname: ‘Miller’,
city: ‘London’,
location: [45.123,47.232],
cars: [
{ model: ‘Bentley’,
year: 1973,
value: 100000, … },
{ model: ‘Rolls Royce’,
year: 1965,
value: 330000, … }
]
}
MongoDBRDBMS

@mlynn
MongoDB Server
10gen
MongoDB

@mlynn
MongoDB Atlas - Database as a Service

@mlynn
● Deploy
● Manage
● Scale
● Backup
● Distribute

@mlynn
QueryAnywhere
Bring MongoDB's rich query
language safely to your
application.
Build full apps for iOS,
Android, Web, and IoT
Functions
Integrate microservices,
server-side logic,
and cloud services.
Power apps or enable Data
as a Service with custom
APIs.
Mobile Sync
Automatically synchronize
data between MongoDB
Mobile and the Cloud.
(coming soon)
Triggers
React to database changes
in real time by executing
functions.
Respond immediately to
changing data.
Stitch Overview

@mlynn
Stitch Overview
MongoDB Query Language + Native DriversIntegrated Rules
Functions3rd Party Services
Native SDKs (JavaScript, Android, iOS)
Rest API

Simplify the Boring Stuff
Why Use Stitch?

Security Matters
Why Use Stitch?

Code Wins Arguments
Why Use Stitch?

@mlynn
Stitch User Accounts
Authentication Providers

@mlynn
Continue as Guest

@mlynn
● Simple Login API
● Pluggable Authentication Providers
○ Email/Password
○ OAuth (Facebook/Google)
○ Custom w/ JWT
○ … and more!
● Multiple Providers per App
○ Link user accounts
○ Log in with any provider
■ Google
■ Facebook
■ etc.
import {
Stitch,
UserPasswordCredential
} from 'mongodb-stitch-browser-sdk';
// Get the user-submitted email and
password
const { email, password } = userInput;
// Log in using the user’s credentials
await Stitch.auth.loginWithCredential(
new UserPasswordCredential(username,
password);
);
// Get data about the newly logged in user
const user = await Stitch.auth.user;

@mlynn
{
"id": "xx",
"name": "xx",
"given_name": "xx",
"family_name": "xx",
"link": "xx",
"picture": "xx",
"gender": "xx",
"locale": "xx"
}
context.users

@mlynn
Write Data
MongoDB Service

@mlynn
MongoDB Service
● Familiar MongoDB Query Language
○ find
○ insert
○ update
○ delete
○ aggregate
● Database Access from Client Code
○ No REST API Needed!
● User-Level Data Access Rules
// Instantiate the MongoDB Service
const mongodb = stitchClient.getServiceClient(
RemoteMongoClient.factory,
“mongodb-atlas”
);
// Get a reference to a collection
const entries = mongodb
.db(“journal”)
.collection(“entries”);
// Insert documents
await entries.insertOne({
title: “My Great Day”,
body: “I had a great day today!”
});
// Update documents
await entries.updateOne(
{ title: “My Great Day” },
{ $set: { body: “I had an AMAZING day today!” } }
);
// Find documents
const someEntry = await entries.findOne({
title: “My Great Day”
});

@mlynn
Word of the day
Idiomatic

@mlynn
Granular, Field Level Access Control
MongoDB Rules

@mlynn
What does that mean?
MongoDB MongoDB Stitch
Collection Level Access
Control
Collection Level Access
Control
Document Level Control Document Level Control
Field Level Access Control

@mlynn
MongoDB Rules
● Specify exactly who sees what data
○ Customized for the Current User
○ Configured per Collection
● Enforce Document Schemas
● Fully Configurable
○ Pre-configured Templates
○ “Advanced Mode” JSON
OFFICE STAFF ACCESS
PHYSCIAN ACCESS

@mlynn
Third Party Services - Email, for Example
Stitch Functions & Services

@mlynn
Stitch Functions
● Serverless JavaScript Functions
● Connect with External Services
○ Twilio, AWS, … and more!
○ Control access with rules
● Execute From Anywhere
○ Client applications
○ Stitch functions
○ Service rules
// notifyUserOfShare
exports = function(sharedWithEmail) {
const ses = context.services.get(“aws-ses”);
return ses.send({
to: sharedWithEmail,
from: context.values.get("journalEmailAddress"),
body: "Someone shared a journal entry with you!"
});
};
// Call from the Client
stitchClient.callFunction(
"notifyUserOfShare”,
["someuser@example.com”]
);

@mlynn
Notify Users Automatically
MongoDB Triggers

@mlynn
MongoDB Triggers {
“name”: “notifyUserOfShare”,
“type”: “DATABASE”,
“function_name”: “notifyUserOfShare”,
“config”: {
“operation_types”: {
“UPDATE”
},
“database”: “journal”,
“collection”: “entries”,
“service_name”: “mongodb-atlas”,
“match”: {},
“full_document”: false
},
“disabled”: false
}
● Fire in Response to Data Changes
○ Built on MongoDB Change Streams
● Pass Change Events to Functions
● Use Multiple Triggers per Collection

@mlynn
https://hacktoberfest.digitalocean.com/

@mlynn
Vue.js Example:
https://github.com/mrlynn/mongodb-stitch-vue-example
http://bit.ly/nyccodecamp2018

@mlynn
My goals for today
What is MongoDB Stitch -
MongoDB Stitch is Serverless, Backend as a Server
- Functions
- Rules
- Service Integrations

@mlynn
My goals for today
What is MongoDB Atlas
MongoDB Atlas is MongoDB’s Database as a Service hosting on top of
AWS, Azure and GCP

@mlynn
My goals for today
What does Idiomatic mean?
MongoDB’s SDK’s are Idiomatic - meaning natural, in the language
you are used to developing.

@mlynn
My goals for today
What’s Michael’s twitter handle?
@mlynn

@mlynn
My goals for today
What authentication providers does MongoDB Stitch Support?
● Anonymous
● Email
● Facebook
● Google
● API Keys
● Custom

@mlynn
My goals for today: Bonus
How does MongoDB enable more granular access control?
Rules: MongoDB Stitch enables rules that enable developers to
segregate documents to have field-level access controls.

@mlynn
Need Inspiration?
https://github.com/dlombard/tinyslack.git
https://github.com/leolin04/mdb-hackathon-slack-lunch.git
https://github.com/makesitgo/cue.git
https://github.com/bsamek/offsite-lang
https://github.com/davidedeangelismdb/mdb4vet.git
https://github.com/Anemy/Shirt
https://github.com/StevenConnors/cue-hw.git

@mlynn
stitch.mongodb.com
Documentation
docs.mongodb.com/stitch/
Demo Applications
github.com/mongodb/stitch-examples/
JavaScript SDK
github.com/mongodb/stitch-js-sdk/
Dive Deeper with
MongoDB Stitch
Resources

Serverless Application Development with MongoDB Stitch

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