IBM Systems Magazine, Mainframe - November/December 2017 - 34

DEVELOPER

MAINFRAME in the API Economy
Connect z/OS applications and data to the hybrid cloud with APIs

A

recent IDC whitepaper, "The Business Value of the Connected Mainframe for
Digital Transformation," (ibm.co/2ipKMqs) highlights the benefits organizations
can expect by investing in the IBM Z* using z/OS* Connect Enterprise
Edition (EE) as opposed to migrating from it. Clients can successfully drive digital
transformation by optimizing their mainframe using APIs to achieve a compelling ROI.

Bruce Armstrong
is the offering
manager for
IBM z/OS Connect
Enterprise Edition.

Some key reasons for the shift
are that APIs:
*

*

*

Make it easier to mix data and
transactions from a variety of
computing resources inside
an enterprise or between
cloud and enterprise (i.e., a
hybrid cloud environment)
Are becoming pervasive
because they make use of
web technology and are supported across many
computing platforms
Consist of create, read,
write and update actions for
data and transactions. This
standard set of actions is
referred to as RESTful APIs,
which are easy for developers to learn. REST APIs also
provide a standard method
of documentation for
developers.

A wealth of strategic business
assets resides on mainframes,
and many organizations are finding ways to extract value from

them. However, it's important
to take a developer's view of the
APIs to be created. Put simply,
what does the mainframe have
today that will be useful to the
developer? A key activity is to
ask them.

Developer-Centric
Vision of Assets
When deciding which direction
to take, it's important to consider
what's going on in your industry with APIs and how to drive
innovation for your company. (See
"Ideas and Inspirations," page
37, for resources to get started.)
Business drivers for APIs can be
related to the need for speed,
reach, innovation and cross-domain information exchange.
With many businesses having
decades of data on mainframes,
it's likely new applications need
easy access to that rich data. Also,
the mainframe likely executes
unique transactions that have
been critical to the business for
decades, and new applications

34 // NOVEMBER/DECEMBER 2017 ibmsystemsmag.com

likely need access to those transactions for future uses.
A key design point for developers
is APIs should be simple to learn
and invoke. APIs that have dozens
of parameters to be called aren't in
the spirit of REST APIs. It's best to
have a few well-designed APIs with
the appropriate REST verbs and
minimal required parameters.

APIs Enable Existing
Applications and Data
Once there's understanding of
what data and transactions are
needed to be exposed as REST
APIs, the next step is to design an
implementation plan. Organizations looking to expose existing
applications and data as RESTful
APIs for development teams and
third parties can use z/OS Connect
EE, which consists of:
*
*

A server runtime that executes
on z/OS
Workstation-based tooling for
API creation, deployment and
simple testing


http://ibm.co/2ipKMqs http://www.ibmsystemsmag.com

Table of Contents for the Digital Edition of IBM Systems Magazine, Mainframe - November/December 2017

Table of Contents
Editor's Desk: Different Cloud Types
TechBits: Doggone Data, Tornado Ally, Watching Watson
Partner POV: Two-Platform IT: Mainframe Cloud Strategy
Trends: Safer Storage: A cloud managed service provider can help with data protection
IT Today: Accelerate Digital Transformation: Enterprise DevOps paired with the IBM z14 helps build modern applications
Cover Story: Step up to the Cloud: New IBM z14 capabilities make it easy to get started
Feature: Open and Connected: IBM z offerings help clients take advantage of the cloud
TECH Showcase: Employee Handbook: To attract and retain millennials, organizations must appeal to their unique wants and needs
Developer: Mainframe in the API Economy: Connect z/OS applications and data to the hybrid cloud with APIs
Solutions: OMC-Flash 4.8.0, Tone Software Corporation; CA Data Content Discovery and CA Compliance Event Manager, CA Technologies
Stop Run: A Strategic Activity: How hobby and career intersect for a global chess master
Reference Point - Global Events, Education, Resources for Mainframe
2017 Mainframe Solutions Edition
IBM Systems Magazine, Mainframe - November/December 2017 - Intro
IBM Systems Magazine, Mainframe - November/December 2017 - Cover1
IBM Systems Magazine, Mainframe - November/December 2017 - Cover2
IBM Systems Magazine, Mainframe - November/December 2017 - 1
IBM Systems Magazine, Mainframe - November/December 2017 - Table of Contents
IBM Systems Magazine, Mainframe - November/December 2017 - 3
IBM Systems Magazine, Mainframe - November/December 2017 - 4
IBM Systems Magazine, Mainframe - November/December 2017 - 5
IBM Systems Magazine, Mainframe - November/December 2017 - Editor's Desk: Different Cloud Types
IBM Systems Magazine, Mainframe - November/December 2017 - 7
IBM Systems Magazine, Mainframe - November/December 2017 - TechBits: Doggone Data, Tornado Ally, Watching Watson
IBM Systems Magazine, Mainframe - November/December 2017 - 9
IBM Systems Magazine, Mainframe - November/December 2017 - Partner POV: Two-Platform IT: Mainframe Cloud Strategy
IBM Systems Magazine, Mainframe - November/December 2017 - 11
IBM Systems Magazine, Mainframe - November/December 2017 - Trends: Safer Storage: A cloud managed service provider can help with data protection
IBM Systems Magazine, Mainframe - November/December 2017 - 13
IBM Systems Magazine, Mainframe - November/December 2017 - 14
IBM Systems Magazine, Mainframe - November/December 2017 - 15
IBM Systems Magazine, Mainframe - November/December 2017 - IT Today: Accelerate Digital Transformation: Enterprise DevOps paired with the IBM z14 helps build modern applications
IBM Systems Magazine, Mainframe - November/December 2017 - 17
IBM Systems Magazine, Mainframe - November/December 2017 - 18
IBM Systems Magazine, Mainframe - November/December 2017 - 19
IBM Systems Magazine, Mainframe - November/December 2017 - Cover Story: Step up to the Cloud: New IBM z14 capabilities make it easy to get started
IBM Systems Magazine, Mainframe - November/December 2017 - 21
IBM Systems Magazine, Mainframe - November/December 2017 - 22
IBM Systems Magazine, Mainframe - November/December 2017 - 23
IBM Systems Magazine, Mainframe - November/December 2017 - 24
IBM Systems Magazine, Mainframe - November/December 2017 - CT1
IBM Systems Magazine, Mainframe - November/December 2017 - CT2
IBM Systems Magazine, Mainframe - November/December 2017 - 25
IBM Systems Magazine, Mainframe - November/December 2017 - Feature: Open and Connected: IBM z offerings help clients take advantage of the cloud
IBM Systems Magazine, Mainframe - November/December 2017 - 27
IBM Systems Magazine, Mainframe - November/December 2017 - 28
IBM Systems Magazine, Mainframe - November/December 2017 - 29
IBM Systems Magazine, Mainframe - November/December 2017 - TECH Showcase: Employee Handbook: To attract and retain millennials, organizations must appeal to their unique wants and needs
IBM Systems Magazine, Mainframe - November/December 2017 - 31
IBM Systems Magazine, Mainframe - November/December 2017 - 32
IBM Systems Magazine, Mainframe - November/December 2017 - 33
IBM Systems Magazine, Mainframe - November/December 2017 - Developer: Mainframe in the API Economy: Connect z/OS applications and data to the hybrid cloud with APIs
IBM Systems Magazine, Mainframe - November/December 2017 - 35
IBM Systems Magazine, Mainframe - November/December 2017 - 36
IBM Systems Magazine, Mainframe - November/December 2017 - 37
IBM Systems Magazine, Mainframe - November/December 2017 - 38
IBM Systems Magazine, Mainframe - November/December 2017 - Solutions: OMC-Flash 4.8.0, Tone Software Corporation; CA Data Content Discovery and CA Compliance Event Manager, CA Technologies
IBM Systems Magazine, Mainframe - November/December 2017 - Stop Run: A Strategic Activity: How hobby and career intersect for a global chess master
IBM Systems Magazine, Mainframe - November/December 2017 - Cover3
IBM Systems Magazine, Mainframe - November/December 2017 - Cover4
IBM Systems Magazine, Mainframe - November/December 2017 - Reference Point - Global Events, Education, Resources for Mainframe
IBM Systems Magazine, Mainframe - November/December 2017 - 2017 Mainframe Solutions Edition
IBM Systems Magazine, Mainframe - November/December 2017 - SE2
IBM Systems Magazine, Mainframe - November/December 2017 - SE3
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