SlideShare a Scribd company logo
SEPARATION
OF
CONCERNS
Daniel Jacobson
@daniel_jacobson
http://www.linkedin.com/in/danieljacobson
http://www.slideshare.net/danieljacobson
APIs Do
Lots of Things!
Data Gathering
Data Formatting
Data Delivery
Security
Authorization
Authentication
System Scaling
Discoverability
Data Consistency
Translations
Throttling
Orchestration
APIs Do
Lots of Things!
These are some of the
many things APIs do.
Data Gathering
Data Formatting
Data Delivery
Security
Authorization
Authentication
System Scaling
Discoverability
Data Consistency
Translations
Throttling
Orchestration
APIs Do
Lots of Things!
These three are at the core.
All others ultimately
support them.
Definitions
• Data Gathering
– Retrieving the requested data from one or many local
or remote data sources
• Data Formatting
– Preparing a structured payload to the requesting
agent
• Data Delivery
– Delivering the structured payload to the requesting
agent
Meanwhile…
There are two players in APIs
API Provider
API Provider API Consumer
API Provider
PROVIDES
API Consumer
CONSUMES
Traditional API Interactions
API Provider
PROVIDES
EVERYTHING
API Consumer
CONSUMES
Everything means, API Provider does:
• Data Gathering
• Data Formatting
• Data Delivery
• (among other things)
Traditional API Interactions
Why do most API providers provide
everything?
• API design tends to be easier for teams closer
to the source
• Centralized API functions makes them easier
to support
• Many APIs have a large set of unknown and
external developers
Why do most API providers provide
everything?
• API design tends to be easier for teams closer
to the source
• Centralized API functions makes them easier
to support
• Many APIs have a large set of unknown and
external developers
Data Gathering Data Formatting Data Delivery
API Consumer
API Provider
Separation of Concerns
To be a better provider, the API should address the
separation of concerns of the three core functions
Data Gathering Data Formatting Data Delivery
API Consumer
Don’t care how data
is gathered, as long
as it is gathered
API Provider
Care a lot about
how the data is
gathered
Separation of Concerns
Data Gathering Data Formatting Data Delivery
API Consumer
Don’t care how data
is gathered, as long
as it is gathered
Each consumer cares a
lot about the format
for that specific use
API Provider
Care a lot about
how the data is
gathered
Only cares about the
format to the extent it
is easy to support
Separation of Concerns
Data Gathering Data Formatting Data Delivery
API Consumer
Don’t care how data
is gathered, as long
as it is gathered
Each consumer cares a
lot about the format
for that specific use
Each consumer cares a
lot about how payload
is delivered
API Provider
Care a lot about
how the data is
gathered
Only cares about the
format to the extent it
is easy to support
Only cares about
delivery method to the
extent it is easy to
support
Separation of Concerns
Because of our separation of
concerns, the Netflix API team is
enabled to focus on different charters
Key Responsibilities
• Broker data between services and UIs
• Maintain a resilient front-door
• Scale the system vertically and horizontally
• Maintain high velocity
• Provide detailed insights into the system health
Brokering Data to
1,000+ Device Types
Most API Providers
Screen Real Estate
Controller
Technical Capabilities
One-Size-Fits-All
API
Request
Request
Request
Courtesy of South Florida Classical Review
Resource-Based API
vs.
Experience-Based API
Resource-Based Requests
• /users/<id>/ratings/title
• /users/<id>/queues
• /users/<id>/queues/instant
• /users/<id>/recommendations
• /catalog/titles/movie
• /catalog/titles/series
• /catalog/people
REST API
RECOMME
NDATIONS
MOVIE
DATA
SIMILAR
MOVIES
AUTH
MEMBER
DATA
A/B
TESTS
START-
UP
RATINGS
Network Border Network Border
RECOMME
NDATIONS
MOVIE
DATA
SIMILAR
MOVIES
AUTH
MEMBER
DATA
A/B
TESTS
START-
UP
RATINGS
OSFA API
Network Border Network Border
SERVER CODE
CLIENT CODE
RECOMME
NDATIONS
MOVIE
DATA
SIMILAR
MOVIES
AUTH
MEMBER
DATA
A/B
TESTS
START-
UP
RATINGS
OSFA API
Network Border Network Border
DATA GATHERING,
FORMATTING,
AND DELIVERY
USER INTERFACE
RENDERING
Experience-Based Requests
• /ps3/homescreen
JAVA API
Network Border Network Border
RECOMME
NDATIONS
MOVIE
DATA
SIMILAR
MOVIES
AUTH
MEMBER
DATA
A/B
TESTS
START-
UP
RATINGS
Groovy Layer
RECOMME
NDATIONSA
ZXSXX C
CCC
MOVIE
DATA
SIMILAR
MOVIES
AUTH
MEMBER
DATA
A/B
TESTS
START-
UP
RATINGS
JAVA API
SERVER CODE
CLIENT CODE
CLIENT ADAPTER CODE
(WRITTEN BY CLIENT TEAMS, DYNAMICALLY UPLOADED TO SERVER)
Network Border Network Border
RECOMME
NDATIONSA
ZXSXX C
CCC
MOVIE
DATA
SIMILAR
MOVIES
AUTH
MEMBER
DATA
A/B
TESTS
START-
UP
RATINGS
JAVA API
DATA GATHERING
DATA FORMATTING
AND DELIVERY
USER INTERFACE
RENDERING
Network Border Network Border
SEPARATION
OF
CONCERNS
Daniel Jacobson
@daniel_jacobson
http://www.linkedin.com/in/danieljacobson
http://www.slideshare.net/danieljacobson
Want to help us solve some of
our concerns?
http://www.netflix.com/jobs

More Related Content

What's hot

Snyk Intro - Developer Security Essentials 2022
Snyk Intro - Developer Security Essentials 2022Snyk Intro - Developer Security Essentials 2022
Snyk Intro - Developer Security Essentials 2022
Liran Tal
 
DevOps Monitoring and Alerting
DevOps Monitoring and AlertingDevOps Monitoring and Alerting
DevOps Monitoring and Alerting
Khairul Zebua
 
Api observability
Api observability Api observability
Api observability
Red Hat
 
Shift Left Security
Shift Left SecurityShift Left Security
Shift Left Security
BATbern
 
Four pillars of DevOps - John Shaw - Agile Cambridge 2014
Four pillars of DevOps - John Shaw - Agile Cambridge 2014Four pillars of DevOps - John Shaw - Agile Cambridge 2014
Four pillars of DevOps - John Shaw - Agile Cambridge 2014
johnfcshaw
 
Observability – the good, the bad, and the ugly
Observability – the good, the bad, and the uglyObservability – the good, the bad, and the ugly
Observability – the good, the bad, and the ugly
Timetrix
 
CI/CD Pipeline Security: Advanced Continuous Delivery Recommendations
CI/CD Pipeline Security: Advanced Continuous Delivery RecommendationsCI/CD Pipeline Security: Advanced Continuous Delivery Recommendations
CI/CD Pipeline Security: Advanced Continuous Delivery Recommendations
Amazon Web Services
 
Building an API Security Strategy
Building an API Security StrategyBuilding an API Security Strategy
Building an API Security Strategy
SmartBear
 
DevOps: A Culture Transformation, More than Technology
DevOps: A Culture Transformation, More than TechnologyDevOps: A Culture Transformation, More than Technology
DevOps: A Culture Transformation, More than Technology
CA Technologies
 
Postman Webinar: "API Governance with Postman"
Postman Webinar: "API Governance with Postman"Postman Webinar: "API Governance with Postman"
Postman Webinar: "API Governance with Postman"
Postman
 
Intro to open source observability with grafana, prometheus, loki, and tempo(...
Intro to open source observability with grafana, prometheus, loki, and tempo(...Intro to open source observability with grafana, prometheus, loki, and tempo(...
Intro to open source observability with grafana, prometheus, loki, and tempo(...
LibbySchulze
 
Pivotal Cloud Foundry: A Technical Overview
Pivotal Cloud Foundry: A Technical OverviewPivotal Cloud Foundry: A Technical Overview
Pivotal Cloud Foundry: A Technical Overview
VMware Tanzu
 
CI-CD Jenkins, GitHub Actions, Tekton
CI-CD Jenkins, GitHub Actions, Tekton CI-CD Jenkins, GitHub Actions, Tekton
CI-CD Jenkins, GitHub Actions, Tekton
Araf Karsh Hamid
 
Peeling the Onion: Making Sense of the Layers of API Security
Peeling the Onion: Making Sense of the Layers of API SecurityPeeling the Onion: Making Sense of the Layers of API Security
Peeling the Onion: Making Sense of the Layers of API Security
Matt Tesauro
 
Continuous delivery and deployment on AWS
Continuous delivery and deployment on AWSContinuous delivery and deployment on AWS
Continuous delivery and deployment on AWS
Shiva Narayanaswamy
 
What Is DevOps? | Introduction To DevOps | DevOps Tools | DevOps Tutorial | D...
What Is DevOps? | Introduction To DevOps | DevOps Tools | DevOps Tutorial | D...What Is DevOps? | Introduction To DevOps | DevOps Tools | DevOps Tutorial | D...
What Is DevOps? | Introduction To DevOps | DevOps Tools | DevOps Tutorial | D...
Edureka!
 
Shift Left Security - The What, Why and How
Shift Left Security - The What, Why and HowShift Left Security - The What, Why and How
Shift Left Security - The What, Why and How
DevOps.com
 
Combining logs, metrics, and traces for unified observability
Combining logs, metrics, and traces for unified observabilityCombining logs, metrics, and traces for unified observability
Combining logs, metrics, and traces for unified observability
Elasticsearch
 
DevOps Training | DevOps Training Video | DevOps Tools | DevOps Tutorial For ...
DevOps Training | DevOps Training Video | DevOps Tools | DevOps Tutorial For ...DevOps Training | DevOps Training Video | DevOps Tools | DevOps Tutorial For ...
DevOps Training | DevOps Training Video | DevOps Tools | DevOps Tutorial For ...
Simplilearn
 
Chaos Engineering for Docker
Chaos Engineering for DockerChaos Engineering for Docker
Chaos Engineering for Docker
Alexei Ledenev
 

What's hot (20)

Snyk Intro - Developer Security Essentials 2022
Snyk Intro - Developer Security Essentials 2022Snyk Intro - Developer Security Essentials 2022
Snyk Intro - Developer Security Essentials 2022
 
DevOps Monitoring and Alerting
DevOps Monitoring and AlertingDevOps Monitoring and Alerting
DevOps Monitoring and Alerting
 
Api observability
Api observability Api observability
Api observability
 
Shift Left Security
Shift Left SecurityShift Left Security
Shift Left Security
 
Four pillars of DevOps - John Shaw - Agile Cambridge 2014
Four pillars of DevOps - John Shaw - Agile Cambridge 2014Four pillars of DevOps - John Shaw - Agile Cambridge 2014
Four pillars of DevOps - John Shaw - Agile Cambridge 2014
 
Observability – the good, the bad, and the ugly
Observability – the good, the bad, and the uglyObservability – the good, the bad, and the ugly
Observability – the good, the bad, and the ugly
 
CI/CD Pipeline Security: Advanced Continuous Delivery Recommendations
CI/CD Pipeline Security: Advanced Continuous Delivery RecommendationsCI/CD Pipeline Security: Advanced Continuous Delivery Recommendations
CI/CD Pipeline Security: Advanced Continuous Delivery Recommendations
 
Building an API Security Strategy
Building an API Security StrategyBuilding an API Security Strategy
Building an API Security Strategy
 
DevOps: A Culture Transformation, More than Technology
DevOps: A Culture Transformation, More than TechnologyDevOps: A Culture Transformation, More than Technology
DevOps: A Culture Transformation, More than Technology
 
Postman Webinar: "API Governance with Postman"
Postman Webinar: "API Governance with Postman"Postman Webinar: "API Governance with Postman"
Postman Webinar: "API Governance with Postman"
 
Intro to open source observability with grafana, prometheus, loki, and tempo(...
Intro to open source observability with grafana, prometheus, loki, and tempo(...Intro to open source observability with grafana, prometheus, loki, and tempo(...
Intro to open source observability with grafana, prometheus, loki, and tempo(...
 
Pivotal Cloud Foundry: A Technical Overview
Pivotal Cloud Foundry: A Technical OverviewPivotal Cloud Foundry: A Technical Overview
Pivotal Cloud Foundry: A Technical Overview
 
CI-CD Jenkins, GitHub Actions, Tekton
CI-CD Jenkins, GitHub Actions, Tekton CI-CD Jenkins, GitHub Actions, Tekton
CI-CD Jenkins, GitHub Actions, Tekton
 
Peeling the Onion: Making Sense of the Layers of API Security
Peeling the Onion: Making Sense of the Layers of API SecurityPeeling the Onion: Making Sense of the Layers of API Security
Peeling the Onion: Making Sense of the Layers of API Security
 
Continuous delivery and deployment on AWS
Continuous delivery and deployment on AWSContinuous delivery and deployment on AWS
Continuous delivery and deployment on AWS
 
What Is DevOps? | Introduction To DevOps | DevOps Tools | DevOps Tutorial | D...
What Is DevOps? | Introduction To DevOps | DevOps Tools | DevOps Tutorial | D...What Is DevOps? | Introduction To DevOps | DevOps Tools | DevOps Tutorial | D...
What Is DevOps? | Introduction To DevOps | DevOps Tools | DevOps Tutorial | D...
 
Shift Left Security - The What, Why and How
Shift Left Security - The What, Why and HowShift Left Security - The What, Why and How
Shift Left Security - The What, Why and How
 
Combining logs, metrics, and traces for unified observability
Combining logs, metrics, and traces for unified observabilityCombining logs, metrics, and traces for unified observability
Combining logs, metrics, and traces for unified observability
 
DevOps Training | DevOps Training Video | DevOps Tools | DevOps Tutorial For ...
DevOps Training | DevOps Training Video | DevOps Tools | DevOps Tutorial For ...DevOps Training | DevOps Training Video | DevOps Tools | DevOps Tutorial For ...
DevOps Training | DevOps Training Video | DevOps Tools | DevOps Tutorial For ...
 
Chaos Engineering for Docker
Chaos Engineering for DockerChaos Engineering for Docker
Chaos Engineering for Docker
 

Viewers also liked

Netflix Edge Engineering Open House Presentations - June 9, 2016
Netflix Edge Engineering Open House Presentations - June 9, 2016Netflix Edge Engineering Open House Presentations - June 9, 2016
Netflix Edge Engineering Open House Presentations - June 9, 2016
Daniel Jacobson
 
Maintaining the Netflix Front Door - Presentation at Intuit Meetup
Maintaining the Netflix Front Door - Presentation at Intuit MeetupMaintaining the Netflix Front Door - Presentation at Intuit Meetup
Maintaining the Netflix Front Door - Presentation at Intuit Meetup
Daniel Jacobson
 
Culture
CultureCulture
Culture
Reed Hastings
 
Maintaining the Front Door to Netflix : The Netflix API
Maintaining the Front Door to Netflix : The Netflix APIMaintaining the Front Door to Netflix : The Netflix API
Maintaining the Front Door to Netflix : The Netflix API
Daniel Jacobson
 
Scaling the Netflix API - OSCON
Scaling the Netflix API - OSCONScaling the Netflix API - OSCON
Scaling the Netflix API - OSCON
Daniel Jacobson
 
Redesigning the Netflix API - OSCON
Redesigning the Netflix API - OSCONRedesigning the Netflix API - OSCON
Redesigning the Netflix API - OSCON
Daniel Jacobson
 
Scaling the Netflix API - From Atlassian Dev Den
Scaling the Netflix API - From Atlassian Dev DenScaling the Netflix API - From Atlassian Dev Den
Scaling the Netflix API - From Atlassian Dev Den
Daniel Jacobson
 
Why API? - Business of APIs Conference
Why API? - Business of APIs ConferenceWhy API? - Business of APIs Conference
Why API? - Business of APIs Conference
Daniel Jacobson
 
Set Your Content Free! : Case Studies from Netflix and NPR
Set Your Content Free! : Case Studies from Netflix and NPRSet Your Content Free! : Case Studies from Netflix and NPR
Set Your Content Free! : Case Studies from Netflix and NPR
Daniel Jacobson
 
API Revolutions : Netflix's API Redesign
API Revolutions : Netflix's API RedesignAPI Revolutions : Netflix's API Redesign
API Revolutions : Netflix's API Redesign
Daniel Jacobson
 
Separation of concerns - DPC12
Separation of concerns - DPC12Separation of concerns - DPC12
Separation of concerns - DPC12
Stephan Hochdörfer
 
Simplifying Salesforce REST in Java Using Annotations
Simplifying Salesforce REST in Java Using AnnotationsSimplifying Salesforce REST in Java Using Annotations
Simplifying Salesforce REST in Java Using Annotations
Salesforce Developers
 
Netflix API
Netflix APINetflix API
Netflix API
Daniel Jacobson
 
How Jenkins Builds the Netflix Global Streaming Service
How Jenkins Builds the Netflix Global Streaming ServiceHow Jenkins Builds the Netflix Global Streaming Service
How Jenkins Builds the Netflix Global Streaming Service
Gareth Bowles
 
Maintaining reliability in an unreliable world
Maintaining reliability in an unreliable worldMaintaining reliability in an unreliable world
Maintaining reliability in an unreliable world
Jeremy Edberg
 
History and Future of the Netflix API - Mashery Evolution of Distribution
History and Future of the Netflix API - Mashery Evolution of DistributionHistory and Future of the Netflix API - Mashery Evolution of Distribution
History and Future of the Netflix API - Mashery Evolution of Distribution
Daniel Jacobson
 
Trailhead Live Developer Workshop - Salesforce App Cloud
Trailhead Live Developer Workshop - Salesforce App CloudTrailhead Live Developer Workshop - Salesforce App Cloud
Trailhead Live Developer Workshop - Salesforce App Cloud
Sam Garforth
 
Scaling the Netflix API
Scaling the Netflix APIScaling the Netflix API
Scaling the Netflix API
Daniel Jacobson
 
Asgard, the Grails App that Deploys Netflix to the Cloud
Asgard, the Grails App that Deploys Netflix to the CloudAsgard, the Grails App that Deploys Netflix to the Cloud
Asgard, the Grails App that Deploys Netflix to the Cloud
Joe Sondow
 
Netflix API - Presentation to PayPal
Netflix API - Presentation to PayPalNetflix API - Presentation to PayPal
Netflix API - Presentation to PayPal
Daniel Jacobson
 

Viewers also liked (20)

Netflix Edge Engineering Open House Presentations - June 9, 2016
Netflix Edge Engineering Open House Presentations - June 9, 2016Netflix Edge Engineering Open House Presentations - June 9, 2016
Netflix Edge Engineering Open House Presentations - June 9, 2016
 
Maintaining the Netflix Front Door - Presentation at Intuit Meetup
Maintaining the Netflix Front Door - Presentation at Intuit MeetupMaintaining the Netflix Front Door - Presentation at Intuit Meetup
Maintaining the Netflix Front Door - Presentation at Intuit Meetup
 
Culture
CultureCulture
Culture
 
Maintaining the Front Door to Netflix : The Netflix API
Maintaining the Front Door to Netflix : The Netflix APIMaintaining the Front Door to Netflix : The Netflix API
Maintaining the Front Door to Netflix : The Netflix API
 
Scaling the Netflix API - OSCON
Scaling the Netflix API - OSCONScaling the Netflix API - OSCON
Scaling the Netflix API - OSCON
 
Redesigning the Netflix API - OSCON
Redesigning the Netflix API - OSCONRedesigning the Netflix API - OSCON
Redesigning the Netflix API - OSCON
 
Scaling the Netflix API - From Atlassian Dev Den
Scaling the Netflix API - From Atlassian Dev DenScaling the Netflix API - From Atlassian Dev Den
Scaling the Netflix API - From Atlassian Dev Den
 
Why API? - Business of APIs Conference
Why API? - Business of APIs ConferenceWhy API? - Business of APIs Conference
Why API? - Business of APIs Conference
 
Set Your Content Free! : Case Studies from Netflix and NPR
Set Your Content Free! : Case Studies from Netflix and NPRSet Your Content Free! : Case Studies from Netflix and NPR
Set Your Content Free! : Case Studies from Netflix and NPR
 
API Revolutions : Netflix's API Redesign
API Revolutions : Netflix's API RedesignAPI Revolutions : Netflix's API Redesign
API Revolutions : Netflix's API Redesign
 
Separation of concerns - DPC12
Separation of concerns - DPC12Separation of concerns - DPC12
Separation of concerns - DPC12
 
Simplifying Salesforce REST in Java Using Annotations
Simplifying Salesforce REST in Java Using AnnotationsSimplifying Salesforce REST in Java Using Annotations
Simplifying Salesforce REST in Java Using Annotations
 
Netflix API
Netflix APINetflix API
Netflix API
 
How Jenkins Builds the Netflix Global Streaming Service
How Jenkins Builds the Netflix Global Streaming ServiceHow Jenkins Builds the Netflix Global Streaming Service
How Jenkins Builds the Netflix Global Streaming Service
 
Maintaining reliability in an unreliable world
Maintaining reliability in an unreliable worldMaintaining reliability in an unreliable world
Maintaining reliability in an unreliable world
 
History and Future of the Netflix API - Mashery Evolution of Distribution
History and Future of the Netflix API - Mashery Evolution of DistributionHistory and Future of the Netflix API - Mashery Evolution of Distribution
History and Future of the Netflix API - Mashery Evolution of Distribution
 
Trailhead Live Developer Workshop - Salesforce App Cloud
Trailhead Live Developer Workshop - Salesforce App CloudTrailhead Live Developer Workshop - Salesforce App Cloud
Trailhead Live Developer Workshop - Salesforce App Cloud
 
Scaling the Netflix API
Scaling the Netflix APIScaling the Netflix API
Scaling the Netflix API
 
Asgard, the Grails App that Deploys Netflix to the Cloud
Asgard, the Grails App that Deploys Netflix to the CloudAsgard, the Grails App that Deploys Netflix to the Cloud
Asgard, the Grails App that Deploys Netflix to the Cloud
 
Netflix API - Presentation to PayPal
Netflix API - Presentation to PayPalNetflix API - Presentation to PayPal
Netflix API - Presentation to PayPal
 

Similar to Netflix API - Separation of Concerns

Maintaining the Front Door to Netflix
Maintaining the Front Door to NetflixMaintaining the Front Door to Netflix
Maintaining the Front Door to Netflix
Benjamin Schmaus
 
Oscon2014 Netflix API - Top 10 Lessons Learned
Oscon2014 Netflix API - Top 10 Lessons LearnedOscon2014 Netflix API - Top 10 Lessons Learned
Oscon2014 Netflix API - Top 10 Lessons Learned
Sangeeta Narayanan
 
Apache NiFi Toronto Meetup
Apache NiFi Toronto MeetupApache NiFi Toronto Meetup
Apache NiFi Toronto Meetup
Hortonworks
 
IT Network Asset Discovery & Inventory
IT Network Asset Discovery & InventoryIT Network Asset Discovery & Inventory
IT Network Asset Discovery & Inventory
ikirmer
 
Leveraging Microservice Architectures & Event-Driven Systems for Global APIs
Leveraging Microservice Architectures & Event-Driven Systems for Global APIsLeveraging Microservice Architectures & Event-Driven Systems for Global APIs
Leveraging Microservice Architectures & Event-Driven Systems for Global APIs
confluent
 
What is API - Understanding API Simplified
What is API - Understanding API SimplifiedWhat is API - Understanding API Simplified
What is API - Understanding API Simplified
Jubin Aghara
 
Core Connector API Demo - Michael Marks Product Manager - Identity, Core Secu...
Core Connector API Demo - Michael Marks Product Manager - Identity, Core Secu...Core Connector API Demo - Michael Marks Product Manager - Identity, Core Secu...
Core Connector API Demo - Michael Marks Product Manager - Identity, Core Secu...
Core Security
 
Droidcon Tunisia 2014 connect your mobile app to your backend
Droidcon Tunisia 2014 connect your mobile app to your backendDroidcon Tunisia 2014 connect your mobile app to your backend
Droidcon Tunisia 2014 connect your mobile app to your backend
Nacef Labidi
 
ABD217_From Batch to Streaming
ABD217_From Batch to StreamingABD217_From Batch to Streaming
ABD217_From Batch to Streaming
Amazon Web Services
 
apidays London 2023 - API Programs - Security by Design, Privacy by Default, ...
apidays London 2023 - API Programs - Security by Design, Privacy by Default, ...apidays London 2023 - API Programs - Security by Design, Privacy by Default, ...
apidays London 2023 - API Programs - Security by Design, Privacy by Default, ...
apidays
 
How APIs are Changing Software Development
How APIs are Changing Software DevelopmentHow APIs are Changing Software Development
How APIs are Changing Software Development
3scale
 
DevOps in the Amazon Cloud – Learn from the pioneersNetflix suro
DevOps in the Amazon Cloud – Learn from the pioneersNetflix suroDevOps in the Amazon Cloud – Learn from the pioneersNetflix suro
DevOps in the Amazon Cloud – Learn from the pioneersNetflix suro
Gaurav "GP" Pal
 
Ipedo Company Overview
Ipedo Company OverviewIpedo Company Overview
Ipedo Company Overview
Tim_Matthews
 
Salesforce Multitenant Architecture: How We Do the Magic We Do
Salesforce Multitenant Architecture: How We Do the Magic We DoSalesforce Multitenant Architecture: How We Do the Magic We Do
Salesforce Multitenant Architecture: How We Do the Magic We Do
Salesforce Developers
 
NISO Training Thursday: Implementing SUSHI/COUNTER at Your Institution
NISO Training Thursday: Implementing SUSHI/COUNTER at Your InstitutionNISO Training Thursday: Implementing SUSHI/COUNTER at Your Institution
NISO Training Thursday: Implementing SUSHI/COUNTER at Your Institution
National Information Standards Organization (NISO)
 
F5 Infosec Israel 2013 Locking the Door in the Clouds
F5 Infosec Israel  2013  Locking the Door in the CloudsF5 Infosec Israel  2013  Locking the Door in the Clouds
F5 Infosec Israel 2013 Locking the Door in the Clouds
Tzoori Tamam
 
Data Services Marketplace
Data Services MarketplaceData Services Marketplace
Data Services Marketplace
Denodo
 
Big Data Day LA 2016/ Big Data Track - Building scalable enterprise data flow...
Big Data Day LA 2016/ Big Data Track - Building scalable enterprise data flow...Big Data Day LA 2016/ Big Data Track - Building scalable enterprise data flow...
Big Data Day LA 2016/ Big Data Track - Building scalable enterprise data flow...
Data Con LA
 
Couchbase Mobile on Android
Couchbase Mobile on AndroidCouchbase Mobile on Android
Couchbase Mobile on Android
Philipp Fehre
 
Integração de Dados com Apache NIFI - Marco Garcia Cetax
Integração de Dados com Apache NIFI - Marco Garcia CetaxIntegração de Dados com Apache NIFI - Marco Garcia Cetax
Integração de Dados com Apache NIFI - Marco Garcia Cetax
Marco Garcia
 

Similar to Netflix API - Separation of Concerns (20)

Maintaining the Front Door to Netflix
Maintaining the Front Door to NetflixMaintaining the Front Door to Netflix
Maintaining the Front Door to Netflix
 
Oscon2014 Netflix API - Top 10 Lessons Learned
Oscon2014 Netflix API - Top 10 Lessons LearnedOscon2014 Netflix API - Top 10 Lessons Learned
Oscon2014 Netflix API - Top 10 Lessons Learned
 
Apache NiFi Toronto Meetup
Apache NiFi Toronto MeetupApache NiFi Toronto Meetup
Apache NiFi Toronto Meetup
 
IT Network Asset Discovery & Inventory
IT Network Asset Discovery & InventoryIT Network Asset Discovery & Inventory
IT Network Asset Discovery & Inventory
 
Leveraging Microservice Architectures & Event-Driven Systems for Global APIs
Leveraging Microservice Architectures & Event-Driven Systems for Global APIsLeveraging Microservice Architectures & Event-Driven Systems for Global APIs
Leveraging Microservice Architectures & Event-Driven Systems for Global APIs
 
What is API - Understanding API Simplified
What is API - Understanding API SimplifiedWhat is API - Understanding API Simplified
What is API - Understanding API Simplified
 
Core Connector API Demo - Michael Marks Product Manager - Identity, Core Secu...
Core Connector API Demo - Michael Marks Product Manager - Identity, Core Secu...Core Connector API Demo - Michael Marks Product Manager - Identity, Core Secu...
Core Connector API Demo - Michael Marks Product Manager - Identity, Core Secu...
 
Droidcon Tunisia 2014 connect your mobile app to your backend
Droidcon Tunisia 2014 connect your mobile app to your backendDroidcon Tunisia 2014 connect your mobile app to your backend
Droidcon Tunisia 2014 connect your mobile app to your backend
 
ABD217_From Batch to Streaming
ABD217_From Batch to StreamingABD217_From Batch to Streaming
ABD217_From Batch to Streaming
 
apidays London 2023 - API Programs - Security by Design, Privacy by Default, ...
apidays London 2023 - API Programs - Security by Design, Privacy by Default, ...apidays London 2023 - API Programs - Security by Design, Privacy by Default, ...
apidays London 2023 - API Programs - Security by Design, Privacy by Default, ...
 
How APIs are Changing Software Development
How APIs are Changing Software DevelopmentHow APIs are Changing Software Development
How APIs are Changing Software Development
 
DevOps in the Amazon Cloud – Learn from the pioneersNetflix suro
DevOps in the Amazon Cloud – Learn from the pioneersNetflix suroDevOps in the Amazon Cloud – Learn from the pioneersNetflix suro
DevOps in the Amazon Cloud – Learn from the pioneersNetflix suro
 
Ipedo Company Overview
Ipedo Company OverviewIpedo Company Overview
Ipedo Company Overview
 
Salesforce Multitenant Architecture: How We Do the Magic We Do
Salesforce Multitenant Architecture: How We Do the Magic We DoSalesforce Multitenant Architecture: How We Do the Magic We Do
Salesforce Multitenant Architecture: How We Do the Magic We Do
 
NISO Training Thursday: Implementing SUSHI/COUNTER at Your Institution
NISO Training Thursday: Implementing SUSHI/COUNTER at Your InstitutionNISO Training Thursday: Implementing SUSHI/COUNTER at Your Institution
NISO Training Thursday: Implementing SUSHI/COUNTER at Your Institution
 
F5 Infosec Israel 2013 Locking the Door in the Clouds
F5 Infosec Israel  2013  Locking the Door in the CloudsF5 Infosec Israel  2013  Locking the Door in the Clouds
F5 Infosec Israel 2013 Locking the Door in the Clouds
 
Data Services Marketplace
Data Services MarketplaceData Services Marketplace
Data Services Marketplace
 
Big Data Day LA 2016/ Big Data Track - Building scalable enterprise data flow...
Big Data Day LA 2016/ Big Data Track - Building scalable enterprise data flow...Big Data Day LA 2016/ Big Data Track - Building scalable enterprise data flow...
Big Data Day LA 2016/ Big Data Track - Building scalable enterprise data flow...
 
Couchbase Mobile on Android
Couchbase Mobile on AndroidCouchbase Mobile on Android
Couchbase Mobile on Android
 
Integração de Dados com Apache NIFI - Marco Garcia Cetax
Integração de Dados com Apache NIFI - Marco Garcia CetaxIntegração de Dados com Apache NIFI - Marco Garcia Cetax
Integração de Dados com Apache NIFI - Marco Garcia Cetax
 

More from Daniel Jacobson

Netflix API: Keynote at Disney Tech Conference
Netflix API: Keynote at Disney Tech ConferenceNetflix API: Keynote at Disney Tech Conference
Netflix API: Keynote at Disney Tech Conference
Daniel Jacobson
 
Techniques for Scaling the Netflix API - QCon SF
Techniques for Scaling the Netflix API - QCon SFTechniques for Scaling the Netflix API - QCon SF
Techniques for Scaling the Netflix API - QCon SF
Daniel Jacobson
 
APIs for Internal Audiences - Netflix - App Dev Conference
APIs for Internal Audiences - Netflix - App Dev ConferenceAPIs for Internal Audiences - Netflix - App Dev Conference
APIs for Internal Audiences - Netflix - App Dev Conference
Daniel Jacobson
 
Netflix API : BAPI 2011 Presentation : SF
Netflix API : BAPI 2011 Presentation : SFNetflix API : BAPI 2011 Presentation : SF
Netflix API : BAPI 2011 Presentation : SF
Daniel Jacobson
 
Presentation to ESPN about the Netflix API
Presentation to ESPN about the Netflix APIPresentation to ESPN about the Netflix API
Presentation to ESPN about the Netflix API
Daniel Jacobson
 
The future-of-netflix-api
The future-of-netflix-apiThe future-of-netflix-api
The future-of-netflix-api
Daniel Jacobson
 
NPR Presentation at Wolfram Data Summit 2010
NPR Presentation at Wolfram Data Summit 2010NPR Presentation at Wolfram Data Summit 2010
NPR Presentation at Wolfram Data Summit 2010
Daniel Jacobson
 
NPR: Digital Distribution Strategy: OSCON2010
NPR: Digital Distribution Strategy: OSCON2010NPR: Digital Distribution Strategy: OSCON2010
NPR: Digital Distribution Strategy: OSCON2010
Daniel Jacobson
 
NPR's Digital Distribution and Mobile Strategy
NPR's Digital Distribution and Mobile StrategyNPR's Digital Distribution and Mobile Strategy
NPR's Digital Distribution and Mobile Strategy
Daniel Jacobson
 
NPR API Usage and Metrics
NPR API Usage and MetricsNPR API Usage and Metrics
NPR API Usage and Metrics
Daniel Jacobson
 
OpenID Adoption UX Summit
OpenID Adoption UX SummitOpenID Adoption UX Summit
OpenID Adoption UX Summit
Daniel Jacobson
 
NPR : Examples of COPE
NPR : Examples of COPENPR : Examples of COPE
NPR : Examples of COPE
Daniel Jacobson
 

More from Daniel Jacobson (12)

Netflix API: Keynote at Disney Tech Conference
Netflix API: Keynote at Disney Tech ConferenceNetflix API: Keynote at Disney Tech Conference
Netflix API: Keynote at Disney Tech Conference
 
Techniques for Scaling the Netflix API - QCon SF
Techniques for Scaling the Netflix API - QCon SFTechniques for Scaling the Netflix API - QCon SF
Techniques for Scaling the Netflix API - QCon SF
 
APIs for Internal Audiences - Netflix - App Dev Conference
APIs for Internal Audiences - Netflix - App Dev ConferenceAPIs for Internal Audiences - Netflix - App Dev Conference
APIs for Internal Audiences - Netflix - App Dev Conference
 
Netflix API : BAPI 2011 Presentation : SF
Netflix API : BAPI 2011 Presentation : SFNetflix API : BAPI 2011 Presentation : SF
Netflix API : BAPI 2011 Presentation : SF
 
Presentation to ESPN about the Netflix API
Presentation to ESPN about the Netflix APIPresentation to ESPN about the Netflix API
Presentation to ESPN about the Netflix API
 
The future-of-netflix-api
The future-of-netflix-apiThe future-of-netflix-api
The future-of-netflix-api
 
NPR Presentation at Wolfram Data Summit 2010
NPR Presentation at Wolfram Data Summit 2010NPR Presentation at Wolfram Data Summit 2010
NPR Presentation at Wolfram Data Summit 2010
 
NPR: Digital Distribution Strategy: OSCON2010
NPR: Digital Distribution Strategy: OSCON2010NPR: Digital Distribution Strategy: OSCON2010
NPR: Digital Distribution Strategy: OSCON2010
 
NPR's Digital Distribution and Mobile Strategy
NPR's Digital Distribution and Mobile StrategyNPR's Digital Distribution and Mobile Strategy
NPR's Digital Distribution and Mobile Strategy
 
NPR API Usage and Metrics
NPR API Usage and MetricsNPR API Usage and Metrics
NPR API Usage and Metrics
 
OpenID Adoption UX Summit
OpenID Adoption UX SummitOpenID Adoption UX Summit
OpenID Adoption UX Summit
 
NPR : Examples of COPE
NPR : Examples of COPENPR : Examples of COPE
NPR : Examples of COPE
 

Recently uploaded

June Patch Tuesday
June Patch TuesdayJune Patch Tuesday
June Patch Tuesday
Ivanti
 
Freshworks Rethinks NoSQL for Rapid Scaling & Cost-Efficiency
Freshworks Rethinks NoSQL for Rapid Scaling & Cost-EfficiencyFreshworks Rethinks NoSQL for Rapid Scaling & Cost-Efficiency
Freshworks Rethinks NoSQL for Rapid Scaling & Cost-Efficiency
ScyllaDB
 
Northern Engraving | Nameplate Manufacturing Process - 2024
Northern Engraving | Nameplate Manufacturing Process - 2024Northern Engraving | Nameplate Manufacturing Process - 2024
Northern Engraving | Nameplate Manufacturing Process - 2024
Northern Engraving
 
Columbus Data & Analytics Wednesdays - June 2024
Columbus Data & Analytics Wednesdays - June 2024Columbus Data & Analytics Wednesdays - June 2024
Columbus Data & Analytics Wednesdays - June 2024
Jason Packer
 
5th LF Energy Power Grid Model Meet-up Slides
5th LF Energy Power Grid Model Meet-up Slides5th LF Energy Power Grid Model Meet-up Slides
5th LF Energy Power Grid Model Meet-up Slides
DanBrown980551
 
Skybuffer SAM4U tool for SAP license adoption
Skybuffer SAM4U tool for SAP license adoptionSkybuffer SAM4U tool for SAP license adoption
Skybuffer SAM4U tool for SAP license adoption
Tatiana Kojar
 
Fueling AI with Great Data with Airbyte Webinar
Fueling AI with Great Data with Airbyte WebinarFueling AI with Great Data with Airbyte Webinar
Fueling AI with Great Data with Airbyte Webinar
Zilliz
 
zkStudyClub - LatticeFold: A Lattice-based Folding Scheme and its Application...
zkStudyClub - LatticeFold: A Lattice-based Folding Scheme and its Application...zkStudyClub - LatticeFold: A Lattice-based Folding Scheme and its Application...
zkStudyClub - LatticeFold: A Lattice-based Folding Scheme and its Application...
Alex Pruden
 
Programming Foundation Models with DSPy - Meetup Slides
Programming Foundation Models with DSPy - Meetup SlidesProgramming Foundation Models with DSPy - Meetup Slides
Programming Foundation Models with DSPy - Meetup Slides
Zilliz
 
HCL Notes and Domino License Cost Reduction in the World of DLAU
HCL Notes and Domino License Cost Reduction in the World of DLAUHCL Notes and Domino License Cost Reduction in the World of DLAU
HCL Notes and Domino License Cost Reduction in the World of DLAU
panagenda
 
Biomedical Knowledge Graphs for Data Scientists and Bioinformaticians
Biomedical Knowledge Graphs for Data Scientists and BioinformaticiansBiomedical Knowledge Graphs for Data Scientists and Bioinformaticians
Biomedical Knowledge Graphs for Data Scientists and Bioinformaticians
Neo4j
 
Connector Corner: Seamlessly power UiPath Apps, GenAI with prebuilt connectors
Connector Corner: Seamlessly power UiPath Apps, GenAI with prebuilt connectorsConnector Corner: Seamlessly power UiPath Apps, GenAI with prebuilt connectors
Connector Corner: Seamlessly power UiPath Apps, GenAI with prebuilt connectors
DianaGray10
 
The Microsoft 365 Migration Tutorial For Beginner.pptx
The Microsoft 365 Migration Tutorial For Beginner.pptxThe Microsoft 365 Migration Tutorial For Beginner.pptx
The Microsoft 365 Migration Tutorial For Beginner.pptx
operationspcvita
 
How to Interpret Trends in the Kalyan Rajdhani Mix Chart.pdf
How to Interpret Trends in the Kalyan Rajdhani Mix Chart.pdfHow to Interpret Trends in the Kalyan Rajdhani Mix Chart.pdf
How to Interpret Trends in the Kalyan Rajdhani Mix Chart.pdf
Chart Kalyan
 
Principle of conventional tomography-Bibash Shahi ppt..pptx
Principle of conventional tomography-Bibash Shahi ppt..pptxPrinciple of conventional tomography-Bibash Shahi ppt..pptx
Principle of conventional tomography-Bibash Shahi ppt..pptx
BibashShahi
 
Mutation Testing for Task-Oriented Chatbots
Mutation Testing for Task-Oriented ChatbotsMutation Testing for Task-Oriented Chatbots
Mutation Testing for Task-Oriented Chatbots
Pablo Gómez Abajo
 
Introduction of Cybersecurity with OSS at Code Europe 2024
Introduction of Cybersecurity with OSS  at Code Europe 2024Introduction of Cybersecurity with OSS  at Code Europe 2024
Introduction of Cybersecurity with OSS at Code Europe 2024
Hiroshi SHIBATA
 
“Temporal Event Neural Networks: A More Efficient Alternative to the Transfor...
“Temporal Event Neural Networks: A More Efficient Alternative to the Transfor...“Temporal Event Neural Networks: A More Efficient Alternative to the Transfor...
“Temporal Event Neural Networks: A More Efficient Alternative to the Transfor...
Edge AI and Vision Alliance
 
HCL Notes und Domino Lizenzkostenreduzierung in der Welt von DLAU
HCL Notes und Domino Lizenzkostenreduzierung in der Welt von DLAUHCL Notes und Domino Lizenzkostenreduzierung in der Welt von DLAU
HCL Notes und Domino Lizenzkostenreduzierung in der Welt von DLAU
panagenda
 

Recently uploaded (20)

June Patch Tuesday
June Patch TuesdayJune Patch Tuesday
June Patch Tuesday
 
Freshworks Rethinks NoSQL for Rapid Scaling & Cost-Efficiency
Freshworks Rethinks NoSQL for Rapid Scaling & Cost-EfficiencyFreshworks Rethinks NoSQL for Rapid Scaling & Cost-Efficiency
Freshworks Rethinks NoSQL for Rapid Scaling & Cost-Efficiency
 
Northern Engraving | Nameplate Manufacturing Process - 2024
Northern Engraving | Nameplate Manufacturing Process - 2024Northern Engraving | Nameplate Manufacturing Process - 2024
Northern Engraving | Nameplate Manufacturing Process - 2024
 
Columbus Data & Analytics Wednesdays - June 2024
Columbus Data & Analytics Wednesdays - June 2024Columbus Data & Analytics Wednesdays - June 2024
Columbus Data & Analytics Wednesdays - June 2024
 
5th LF Energy Power Grid Model Meet-up Slides
5th LF Energy Power Grid Model Meet-up Slides5th LF Energy Power Grid Model Meet-up Slides
5th LF Energy Power Grid Model Meet-up Slides
 
Skybuffer SAM4U tool for SAP license adoption
Skybuffer SAM4U tool for SAP license adoptionSkybuffer SAM4U tool for SAP license adoption
Skybuffer SAM4U tool for SAP license adoption
 
Fueling AI with Great Data with Airbyte Webinar
Fueling AI with Great Data with Airbyte WebinarFueling AI with Great Data with Airbyte Webinar
Fueling AI with Great Data with Airbyte Webinar
 
zkStudyClub - LatticeFold: A Lattice-based Folding Scheme and its Application...
zkStudyClub - LatticeFold: A Lattice-based Folding Scheme and its Application...zkStudyClub - LatticeFold: A Lattice-based Folding Scheme and its Application...
zkStudyClub - LatticeFold: A Lattice-based Folding Scheme and its Application...
 
Programming Foundation Models with DSPy - Meetup Slides
Programming Foundation Models with DSPy - Meetup SlidesProgramming Foundation Models with DSPy - Meetup Slides
Programming Foundation Models with DSPy - Meetup Slides
 
Artificial Intelligence and Electronic Warfare
Artificial Intelligence and Electronic WarfareArtificial Intelligence and Electronic Warfare
Artificial Intelligence and Electronic Warfare
 
HCL Notes and Domino License Cost Reduction in the World of DLAU
HCL Notes and Domino License Cost Reduction in the World of DLAUHCL Notes and Domino License Cost Reduction in the World of DLAU
HCL Notes and Domino License Cost Reduction in the World of DLAU
 
Biomedical Knowledge Graphs for Data Scientists and Bioinformaticians
Biomedical Knowledge Graphs for Data Scientists and BioinformaticiansBiomedical Knowledge Graphs for Data Scientists and Bioinformaticians
Biomedical Knowledge Graphs for Data Scientists and Bioinformaticians
 
Connector Corner: Seamlessly power UiPath Apps, GenAI with prebuilt connectors
Connector Corner: Seamlessly power UiPath Apps, GenAI with prebuilt connectorsConnector Corner: Seamlessly power UiPath Apps, GenAI with prebuilt connectors
Connector Corner: Seamlessly power UiPath Apps, GenAI with prebuilt connectors
 
The Microsoft 365 Migration Tutorial For Beginner.pptx
The Microsoft 365 Migration Tutorial For Beginner.pptxThe Microsoft 365 Migration Tutorial For Beginner.pptx
The Microsoft 365 Migration Tutorial For Beginner.pptx
 
How to Interpret Trends in the Kalyan Rajdhani Mix Chart.pdf
How to Interpret Trends in the Kalyan Rajdhani Mix Chart.pdfHow to Interpret Trends in the Kalyan Rajdhani Mix Chart.pdf
How to Interpret Trends in the Kalyan Rajdhani Mix Chart.pdf
 
Principle of conventional tomography-Bibash Shahi ppt..pptx
Principle of conventional tomography-Bibash Shahi ppt..pptxPrinciple of conventional tomography-Bibash Shahi ppt..pptx
Principle of conventional tomography-Bibash Shahi ppt..pptx
 
Mutation Testing for Task-Oriented Chatbots
Mutation Testing for Task-Oriented ChatbotsMutation Testing for Task-Oriented Chatbots
Mutation Testing for Task-Oriented Chatbots
 
Introduction of Cybersecurity with OSS at Code Europe 2024
Introduction of Cybersecurity with OSS  at Code Europe 2024Introduction of Cybersecurity with OSS  at Code Europe 2024
Introduction of Cybersecurity with OSS at Code Europe 2024
 
“Temporal Event Neural Networks: A More Efficient Alternative to the Transfor...
“Temporal Event Neural Networks: A More Efficient Alternative to the Transfor...“Temporal Event Neural Networks: A More Efficient Alternative to the Transfor...
“Temporal Event Neural Networks: A More Efficient Alternative to the Transfor...
 
HCL Notes und Domino Lizenzkostenreduzierung in der Welt von DLAU
HCL Notes und Domino Lizenzkostenreduzierung in der Welt von DLAUHCL Notes und Domino Lizenzkostenreduzierung in der Welt von DLAU
HCL Notes und Domino Lizenzkostenreduzierung in der Welt von DLAU
 

Netflix API - Separation of Concerns

Editor's Notes

  1. Most companies focus on a small handful of device implementations, most notably Android and iOS devices.
  2. At Netflix, we have more than 1,000 different device types that we support. Across those devices, there is a high degree of variability. As a result, we have seen inefficiencies and problems emerge across our implementations. Those issues also translate into issues with the API interaction.
  3. For example, screen size could significantly affect what the API should deliver to the UI. TVs with bigger screens that can potentially fit more titles and more metadata per title than a mobile phone. Do we need to send all of the extra bits for fields or items that are not needed, requiring the device itself to drop items on the floor? Or can we optimize the deliver of those bits on a per-device basis?
  4. Different devices have different controlling functions as well. For devices with swipe technologies, such as the iPad, do we need to pre-load a lot of extra titles in case a user swipes the row quickly to see the last of 500 titles in their queue? Or for up-down-left-right controllers, would devices be more optimized by fetching a few items at a time when they are needed? Other devices support voice or hand gestures or pointer technologies. How might those impact the user experience and therefore the metadata needed to support them?
  5. The technical specs on these devices differ greatly. Some have significant memory space while others do not, impacting how much data can be handled at a given time. Processing power and hard-drive space could also play a role in how the UI performs, in turn potentially influencing the optimal way for fetching content from the API. All of these differences could result in different potential optimizations across these devices.
  6. Many UI teams needing metadata means many requests to the API team. In the one-size-fits-all API world, we essentially needed to funnel these requests and then prioritize them. That means that some teams would need to wait for API work to be done. It also meant that, because they all shared the same endpoints, we were often adding variations to the endpoints resulting in a more complex system as well as a lot of spaghetti code. Make teams wait due to prioritization was exacerbated by the fact that tasks took longer because the technical debt was increasing, causing time to build and test to increase. Moreover, many of the incoming requests were asking us to do more of the same kinds of customizations. This created a spiral that would be very difficult to break out of…
  7. Many other companies have seen similar issues and have introduced orchestration layers that enable more flexible interaction models.
  8. Odata, HYQL, ql.io, rest.li and others are examples of orchestration layers. They address the same problems that we have seen, but we have approached the solution in a very different way.
  9. We evolved our discussion towards what ultimately became a discussion between resource-based APIs and experience-based APIs.
  10. The original OSFA API was very resource oriented with granular requests for specific data, delivering specific documents in specific formats.
  11. The interaction model looked basically like this, with (in this example) the PS3 making many calls across the network to the OSFA API. The API ultimately called back to dependent services to get the corresponding data needed to satisfy the requests.
  12. In this mode, there is a very clear divide between the Client Code and the Server Code. That divide is the network border.
  13. And the responsibilities have the same distribution as well. The Client Code handles the rendering of the interface (as well as asking the server for data). The Server Code is responsible of gathering, formatting and delivering the data to the UIs.
  14. And ultimately, it works. The PS3 interface looks like this and was populated by this interaction model.
  15. But we believe this is not the optimal way to handle it. In fact, assembling a UI through many resource-based API calls is akin to pointillism paintings. The picture looks great when fully assembled, but it is done by assembling many points put together in the right way.
  16. We have decided to pursue an experience-based approach instead. Rather than making many API requests to assemble the PS3 home screen, the PS3 will potentially make a single request to a custom, optimized endpoint.
  17. In an experience-based interaction, the PS3 can potentially make asingle request across the network border to a scripting layer (currently Groovy), in this example to provide the data for the PS3 home screen. The call goes to a very specific, custom endpoint for the PS3 or for a shared UI. The Groovy script then interprets what is needed for the PS3 home screen and triggers a series of calls to the Java API running in the same JVM as the Groovy scripts. The Java API is essentially a series of methods that individually know how to gather the corresponding data from the dependent services. The Java API then returns the data to the Groovy script who then formats and delivers the very specific data back to the PS3.
  18. In this model, the border between Client Code and Server Code is no longer the network border. It is now back on the server. The Groovy is essentially a client adapter written by the client teams.
  19. And the distribution of work changes as well. The client teams continue to handle UI rendering, but now are also responsible for the formatting and delivery of content. The API team, in terms of the data side of things, is responsible for the data gathering and hand-off to the client adapters. Of course, the API team does many other things, including resiliency, scaling, dependency interactions, etc. This model is essentially a platform for API development.
  20. If resource-based APIs assemble data like pointillism, experience-based APIs assemble data like a photograph. The experience-based approach captures and delivers it all at once.