1.
Igor Androsov
Cloud Architect
igor-androsov@bisk.com
@iandrosov
Mobilize Salesforce Data Using Twelve-Factor Apps on
Heroku
Best practices for building modern cloud applications

2.
Forward-Looking Statements
Statement under the Private Securities Litigation Reform Act of 1995:
This presentation may contain forward-looking statements that involve risks, uncertainties, and assumptions. If any such uncertainties materialize or if any
of the assumptions proves incorrect, the results of salesforce.com, inc. could differ materially from the results expressed or implied by the forward-looking
statements we make. All statements other than statements of historical fact could be deemed forward-looking, including any projections of product or
service availability, subscriber growth, earnings, revenues, or other financial items and any statements regarding strategies or plans of management for
future operations, statements of belief, any statements concerning new, planned, or upgraded services or technology developments and customer contracts
or use of our services.
The risks and uncertainties referred to above include – but are not limited to – risks associated with developing and delivering new functionality for our
service, new products and services, our new business model, our past operating losses, possible fluctuations in our operating results and rate of growth,
interruptions or delays in our Web hosting, breach of our security measures, the outcome of any litigation, risks associated with completed and any possible
mergers and acquisitions, the immature market in which we operate, our relatively limited operating history, our ability to expand, retain, and motivate our
employees and manage our growth, new releases of our service and successful customer deployment, our limited history reselling non-salesforce.com
products, and utilization and selling to larger enterprise customers. Further information on potential factors that could affect the financial results of
salesforce.com, inc. is included in our annual report on Form 10-K for the most recent fiscal year and in our quarterly report on Form 10-Q for the most
recent fiscal quarter. These documents and others containing important disclosures are available on the SEC Filings section of the Investor Information
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Any unreleased services or features referenced in this or other presentations, press releases or public statements are not currently available and may not
be delivered on time or at all. Customers who purchase our services should make the purchase decisions based upon features that are currently available.
Salesforce.com, inc. assumes no obligation and does not intend to update these forward-looking statements.

3.
How to turn your ideas,
wireframes, and designs to
functional production app –
Product Engineer
Build Me a Mobile App
It is Simple right?

4.
Twelve-Factor App
methodology helps Product
Engineer/s
Ideas & Concepts to App
Twelve-Factor Journey to the AppStore

5.
Tools
Heroku, Postgres,
Heroku Connect
Swagger, Node.js,
ES6/JavaScript
iOS mobile app built
with Swift 3, Xcode 8
Salesforce,
Force.com, APEX,
AppCloud, Lightning
Platforms, Frameworks & Languages

6.
API Design & Documentation – Swagger Demo Setup
With API current
documentation is key
Design API with Extensible
grammar YAML, JSON or
RAML enables rapid iteration,
validation & testability.
Swagger, Apiary, Apigee,
tools to design API
Modern cloud apps are API first

7.
Enter Twelve-Factors Codebase
1
2
3
4
5
Port Binding
7
Dependencies
Configuration
Backing Services
Build, Release & Run
ProcessConcurrency 6
Disposability
8
9
10
11
12Admin Processes
Logs
Dev, Prod Parity

8.
1. Codebase
Git, GitHub, SVN etc.
Code base in single
repository
App is single codebase
Many apps should not share
same code base
Create shared Libraries &
Frameworks
One codebase tracked in revision control, many deploys

9.
2. Dependencies
Explicitly declare and isolate dependencies
Automate dependencies with
tools & package managers
Use package manager when
available, (most modern
runtimes have PM)
Node.js & JS – NPM
Xcode - cocoapods

10.
3. Configuration
Configuration, is anything
that vary between
environments.
DB Connections,
credentials, etc.
Code Does Not!
Heroku – environment
variables
Xcode – build targets & plist
Store configuration in the environment

11.
4. Backing Services
Define your dependencies
cleanly gives system flexibility
Each part in a system
abstracted from complexity of
another
…good architecture
Heroku – AWS S3, DB,
Salesforce etc.
Mobile – REST APIs &
services
Treat Backing Service as attached resources referenced by endpoint or URL

12.
5. Build, Release & Run
Follow your chosen
framework build process
Strictly Separate Build & Run Stages

13.
6. Process
As app scales it may run on
many servers
That code should run
stateless
State is important to
business - keep the state in
an external reliable store.
Heroku Dynos – isolated,
lightweight, share nothing,
Linux containers
Execute App as One or More Stateless Processes

14.
7. Port Binding
Web-app service typically
exposed over HTTP on some
port
Node.js Express framework
& Swagger runtime port
binding
Export Services via port binding

15.
8. Concurrency
Run your code as lots of
small processes.
Node has limited scaling
ability due to single threaded
nature
Node.js must fork processes
– “clustering”
Scale out via process model

16.
Enable Concurrency in your app - Demo
Node.js clustering with Throng

17.
9. Disposability
Maximize robustness with fast startup and graceful shutdown
New versions of your app
should launch quick and
start handling traffic.
Apps must handle
interruptions or shutdown
requests gracefully.

18.
10. Development, Production Parity
Very simple with Heroku
Pipeline
Automated deployments CI
Pipeline Promotion*
Keep development, staging and production as similar as possible

19.
11. Logs
Monitor Logs
Listen to log events & errors
Filter events and actions
Treat Logs as event stream

20.
12. Admin Processes
Console is critical
administrative and
debugging tool
Heroku Toolbelt provides
command line administration
Can be scripted & automated
Run admin/management tasks as one-off processes

21.
Real data, real fast with
Heroku Connect.
It is NOT ETL, rather data
synchronization tool for
Salesforce data & Postgres
Database
Synchronize Real Data – Demo
Heroku Connect

22.
Summary
What did we just do?

23.
Architecture Anatomy
Demo app anatomy in Twelve-Factors
API
Limit,
License

24.
Resources
Heroku Dev Center - https://devcenter.heroku.com
• Heroku Postgres - https://www.heroku.com/postgres
• Heroku Connect - https://www.heroku.com/connect
• Papertail - https://elements.heroku.com/addons/papertrail
Node.js - https://nodejs.org
• NPM - https://www.npmjs.com
• Swagger - http://swagger.io
Swift - https://swift.org
• XCode - https://developer.apple.com/xcode/ide/
• Cocoapods - https://cocoapods.org
Github repository - https://github.com/iandrosov/df16-harvest-api
Twitter: @iandrosov

25.
Thank Y u