The document discusses the benefits of an API-led approach for integrating core systems, highlighting the complexities and pitfalls of point-to-point interfaces. It emphasizes the need for layering services into experience, process, and system APIs to simplify the IT landscape and enhance reuse of code and functionalities across multiple platforms. Additionally, the document illustrates how well-designed APIs facilitate business agility and support modernization while allowing seamless integration with various technologies.

1. An API-led approach to integrating with core systems
APIs for Core Systems

2. An API-led approach to integrating with core
systems
APIs for Core Systems

3. Copyright © 2017 Deloitte Development LLC. All rights reserved.
• A simple P2P interface is
only the first pebble in
an eventual avalanche of
P2P interfaces
• Aside from the inherent
complexity, proliferation
of P2P interfaces leads to
duplication of:
– Code
– Tools / libraries
– Approaches to common
problems
The pitfalls of Point-to-Point integrations
3
• A simple P2P interface is
only the first pebble in
an eventual avalanche of
P2P interfaces

4. Copyright © 2017 Deloitte Development LLC. All rights reserved.
An API-led approach can simplify the IT landscape
API-led connectivity addresses many of these pitfalls
4
• Layering services into Experience,
Process, and System APIs help to
simplify the landscape
– System APIs, in particular, help
reduce proliferation of technologies
across the organization
• There is potential for reuse at
multiple levels
– Transformations, DB queries,
validations… all can be reused
– Code can be shared between
RESTful APIs, batch file transfers,
and any other integrations in
Anypoint
Experience
API
Experience
API
Experience
API
System API System API System API
Experience
API
Process API Process API

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Potential benefits can be provided in multiple ways
5
Technology
Agnostic
Business
Agility
Any System,
One API
Central Policies
and Control
REST technologies are
remarkably accessible
from any technology,
from Java to JavaScript.
Exposing a RESTful API
means that almost any
system can consume
and make use of it.
Well designed APIs
provide common
functionality, which can
be packaged and reused
in a variety of contexts;
web sites, mobile apps,
chat bots, etc.
The future is unknown,
but well packaged APIs
and microservices are
well positioned to be
leveraged when the
business expands or
changes direction.
APIs are responsible for
more than just an
organization’s internal
databases and systems,
they also need to
provide for SaaS
applications like
Salesforce.
API consumers don’t
need to care where the
data is coming from, or
where it’s going.
A modern IT landscape
will include APIs built in
a number of
technologies (Anypoint,
Node.JS, WMB, …), but
exposing them through
a common gateway
allows an organization to
control access to its
assets.
Flexibility and control –
not either/or.

6. Copyright © 2017 Deloitte Development LLC. All rights reserved.
… and it all has to be agile
6
• Development cycles get faster and faster
• The more an organization starts to adopt Agile techniques, the more
the tools need to support the pipeline
• Anypoint is easily plugged into a DevOps pipeline, and supports
robust testing tools (e.g. MUnit)
– It's not just development that gets sped up, it's the entire lifecycle, from ideation
to implementation to support

7. Demonstration
System APIs for databases

8. Copyright © 2017 Deloitte Development LLC. All rights reserved.
Customers and Products
8
• This example leverages two systems: the systems of record for
Customers and for Products
• The systems use different back-end technologies, but these details
are hidden behind the System APIs
• Information is tied together by a Process API, which leverages the
two System APIs

9. Copyright © 2017 Deloitte Development LLC. All rights reserved.
3 APIs demonstrated
9
Customer Microservice Product Microservice CRM Process API
Customer Microservice:
System API
MySQL
Read-Only API
Product Microservice:
System API
MySQL
Read/Write API
Product Data
Files
CRM Microservice:
Experience API
Read-Only API

10. Questions?

11. Thank you!
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