Mark Smith Intro to MongoDB + Mobile Mohit Sharma 

This webinar will be recorded — the recording will be shared. Logistics All participants will be muted. For questions during & at the end of the session, please use the Q&A box. For live comments, please use the Chat in the control panel. There will be a short survey at the end - your input is appreciated :) 

Agenda MongoDB: More Than Just a Database! MongoDB and the Document Model Querying MongoDB Let's Build a Mobile App! Q&A (fill in the survey!) 

MongoDB: More than just a database! 

A developer data platform to simplify working with data Elegant developer experience Serve any application or workload Modern data model Abstraction of infrastructure details 

End-to-end, enterprise-grade security features Realm MongoDB Atlas Atlas Device Sync In-cloud security: Features that integrate with your existing protocols and compliance standards. ● Encrypted storage volumes ● Network isolation ● Role-based access management On-device encryption: Easily encrypt PII in realm database files with the encryption APIs Authorization: Rich authorization methods including anonymous, email/password, API key, Custom Function, Custom JWT, Facebook, Google, and Apple. In-flight encryption: All network traffic is encrypted using Transport layer Security (TLS). Granular permissions: Document and field-level access permissions are used to dynamically determine the data synced to the device. ISO SOC PCI CSA HIPAA HITRUST VPAT GDPR On-device In-flight In the cloud 

Atlas App Services 

Atlas & App Services Database Realm Database Atlas Device Sync 

Atlas & App Services Database Realm Database Atlas Device Sync GraphQL Data API Functions 

Atlas & App Services Database Realm Database Atlas Device Sync GraphQL Data API Functions Atlas Search Drivers 

FUTURE WORK. 

The MongoDB Database 

The Document Model 

{ "_id": ObjectId("573a1390f29313caabcd4135"), "title": "Blacksmith Scene", "plot": "Three men hammer on an anvil and pass ...", "cast": [ "Charles Kayser", "John Ott" ], "directors": [ "William K.L. Dickson" ], "lastupdated": "2015-08-26 00:03:50.133000000", "year": 1893, "imdb": { "rating": 6.2, "votes": 1189, "id": 5 } } A Document 

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{ "_id": ObjectId("573a1390f29313caabcd4135"), "title": "Blacksmith Scene", "plot": "Three men hammer on an anvil and pass ...", "cast": [ "Charles Kayser", "John Ott" ], "directors": [ "William K.L. Dickson" ], "lastupdated": "2015-08-26 00:03:50.133000000", "year": 1893, "imdb": { "rating": 6.2, "votes": 1189, "id": 5 } } A Document 

{ "_id": ObjectId("573a1390f29313caabcd4135"), "title": "Blacksmith Scene", "plot": "Three men hammer on an anvil and pass ...", "cast": [ "Charles Kayser", "John Ott" ], "directors": [ "William K.L. Dickson" ], "lastupdated": "2015-08-26 00:03:50.133000000", "year": 1893, "imdb": { "rating": 6.2, "votes": 1189, "id": 5 } } A Document 

{ "_id": ObjectId("573a1390f29313caabcd4135"), "title": "Blacksmith Scene", "plot": "Three men hammer on an anvil and pass ...", "cast": [ "Charles Kayser", "John Ott" ], "directors": [ "William K.L. Dickson" ], "lastupdated": "2015-08-26 00:03:50.133000000", "year": 1893, "imdb": { "rating": 6.2, "votes": 1189, "id": 5 } } Values Can be Scalar 

{ "_id": ObjectId("573a1390f29313caabcd4135"), "title": "Blacksmith Scene", "plot": "Three men hammer on an anvil and pass ...", "cast": [ "Charles Kayser", "John Ott" ], "directors": [ "William K.L. Dickson" ], "lastupdated": "2015-08-26 00:03:50.133000000", "year": 1893, "imdb": { "rating": 6.2, "votes": 1189, "id": 5 } } Array Values 

{ "_id": ObjectId("573a1390f29313caabcd4135"), "title": "Blacksmith Scene", "plot": "Three men hammer on an anvil and pass ...", "cast": [ "Charles Kayser", "John Ott" ], "directors": [ "William K.L. Dickson" ], "lastupdated": "2015-08-26 00:03:50.133000000", "year": 1893, "imdb": { "rating": 6.2, "votes": 1189, "id": 5 } } Subdocument Values 

Querying MongoDB 

Rust R Client drivers 

Drivers Connecting to your database Realm SDK SQL Connector GraphQL Data API Functions 

db.collection.findOne() Match a single document. db.collection.find() Match, sort, or count multiple documents. db.collection.aggregate() Match, combine & aggregate documents. The MongoDB Query API 

{ "_id": { "$oid": "573a1390f29313caabcd4135" }, "plot": "Three men hammer on an anvil and pass a bottle of beer around.", "genres": [ "Short" ], "runtime": 1, "cast": [ db.movies.findOne({ "title": "Blacksmith Scene" }) Find One Document 

db.movies.find({ "year": 2010 }); [{ "_id": { "$oid": "573a139cf29313caabcf6fb1" }, "plot": "A lonely obese nurse, working at a hospital terminal ward, is reminded of her childhood friend Adrienn Pal and wants to track her down.", "genres": [ "Drama" ], "runtime": 136, "cast": [ "èva Gèbor", "Istvèn Znamenèk", "èkos Horvèth", "Lia Pokorny" ], "num_mflix_comments": 1, Find Many Documents 

db.movies.find({ "year": { "$gte": 2000, "$lt": 2010 } }) [{ "_id": { "$oid": "573a139cf29313caabcf6fb1" }, "plot": "A lonely obese nurse, working at a hospital terminal ward, is reminded of her childhood friend Adrienn Pal and wants to track her down.", "genres": [ "Drama" ], "runtime": 136, "cast": [ "èva Gèbor", "Istvèn Znamenèk", "èkos Horvèth", "Lia Pokorny" ], "num_mflix_comments": 1, Find Many Documents 

And there's more… ● Aggregation queries ● Optimize your queries with indexes ● Ensure consistency with transactions ● Store geographical data with GeoJSON ● Store metrics with time series collections 

Atlas App Services 

Atlas App Services 

Let’s build a mobile app 

Event Manager App 

Data synchronization JSON ORM NATIVE OBJECT MSG QUEUE BACKEND OBJECT REST CALL TO API COMPLEX NETWORK HANDLING & CONFLICT RESOLUTION POTENTIAL APP CRASH OFFLINE? INVALID DATA? SERVER ERROR? TIMED OUT? Backend database Mobile devices with local data High Level Architecture 

High Level Architecture Mobile App Atlas Device Sync MongoDB Atlas Live Update Realm Mobile DB Registration/Login Create Events Manage Talks 

Setup our cloud database - Atlas database 

Atlas 

Atlas 

Mobile App Atlas Device Sync MongoDB Atlas Live Update Realm Mobile DB Registration/Login Create Events Manage Talks How to connect to our Atlas Database? 

How to connect to our Atlas Database? 

Atlas App Service 

Setting up Device Sync 

How to a connect client apps with Atlas App Service? Realm SDK Swift/SwiftUI Dart/Flutter Kotlin/KMM Java JavaScript .NET 

Realm By MongoDB ACID Object database Easy in-language model definitions Notification Encryption Sync with MongoDB Atlas Fast w/ Zero-copy and lazy loading 

Show me the code !! Check out the github repo: 

How to a connect Mobile App with Atlas App? Code snippet for setting up connection with Atlas App 

How to a connect Mobile App with Atlas App? Code snippet for setting up connection with Atlas App 

Connecting Realm & Flexible Sync Code snippet for setting up connection with Atlas App 

Creating a model 

Saving Info Code snippet 

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Adding Tigger 

Adding Tigger 

Adding a cloud function Code snippet 

How to update the model Code snippet for update 

Atlas Sync Updating Model in action Updating Model in action 

Realm MongoDB Atlas MongoDB auto-syncs between device and cloud Atlas Device Sync SDK writes transaction The Realm SDK writes the transaction, commiting the object to disk, and sends the changes to the server Insert into collection MongoDB document inserted into the Atlas collection User makes change User logs into the app and makes an edit Object Conversion Atlas Device Sync automatically converts the Realm object to a MongoDB document Change Detected Document changed by another user is picked up by changeStreams and forwarded to Atlas Device Sync Object Conversion Atlas Device Sync automatically translates MongoDB documents to Realm objects and syncs down to the device Notification Realm commits the change to disk. A notification is fired and the UI is updated displaying the new change to the user 

Observing Data Change 

Seamless Sync of the box 

MongoDB provides the easiest way to build & scale mobile apps Built-in cloud sync, conflict resolution, security, & permissions Mobile database with built-in ORM and network handling MongoDB’s cloud database Atlas Realm Atlas Device Sync Swift/SwiftUI Dart/Flutter Kotlin/KMM Java JavaScript .NET 

And provides a single data layer shared across all platforms Built-in cloud sync, conflict resolution, security, & permissions MongoDB’s cloud database Atlas Atlas Device Sync 

Leading innovators leverage MongoDBʼs mobile & device solution 

Q&A coming up ... What Next ! 

Please share your feedback. Thank you! Q&A coming up next... Survey Time