Sharing Best Practices and Recommendations from the Integration Battlefield

Isabelle
Mauny
VP,
Product,
WSO2
Last Updated: Nov 2014
Lessons
from
the
ba.lefield
Tuesday, December 9, 14

2
About
the
speaker...
๏ French
na)ve
๏ Living
in
Madrid
๏ Working
mostly
in
Sri
Lanka
and
Europe
๏ 17
years
@
IBM,
5
years
in
startups
๏ Managing
the
overall
WSO2
porEolio
๏ Linux
command
line
user...

3
Who
is
WSO2
?
๏ Open
Source
Middleware
Pla2orm
Provider
๏ Apache
2.0
License
๏ Provides
Integra?on,
API
Management,
Security
and
Mobile
enterprise
management
products
๏ Main
contributor
to
Apache
Stratos
PaaS
๏ Creators
of
DevOps
“AppFactory”
cloud
solu?on

Architecture
Roadmap
5
Decompose
your
exis7ng
business
processes,
data
and
capabili7es
into
services
Make
all
services
accessible
via
APIs,
externally
and
internally
Put
services
and
APIs
under
control
!
Build
an
ecosystem
around
your
APIs
Collect
data
on
your
new
products
and
APIs
1
2
3
4
5

6
Crea%ng
and
Managing
Services

7
Services
and
APIs
๏ Service
deals
with
implementa)on
๏ API
deals
with
subscrip)on
(consumer)
๏ Two
very
dis)nct
life
cycles
!
๏ You
don’t
need
the
service
to
create
the
API...

8
API
Lifecycle
๏ An
API
can
pass
through
mul)ple
states
๏ For
example:
๏ CREATED
๏ PUBLISHED
๏ DEPRECATED
๏ RETIRED
๏ BLOCKED
๏ Should
integrate
with
complete
governance
lifecycle

9
Building
a
Managed
API
๏ Crea)ng
APIs
(interface,
docs,
samples,etc.)
๏ Adver)sing
APIs
๏ Making
APIs
subscribe-‐able
by
consumers
๏ Associa)ng
SLAs
๏ Securing
APIs
๏ Mone)za)on
and
Analy)cs

10
API
Security

11
API
Security
๏ Security
is
not
an
aer
thought
!
๏ APIs
are
part
of
a
much
larger
enterprise
picture
๏ How
will
consumers
request
an
access
token
?
๏ Using
a
SAML
2.0
asser)on
?
๏ Using
client_creden)als
?
๏ Using
userid/password
?
๏ Make
sure
you
document
thoroughly
how
developers
need
to
manage
tokens:
๏ Tokens
are
like
passwords!
๏ Always
use
SSL
for
token
transporta)on
!
๏ Use
Domain
restric)ons
(WSO2
API
Manager)

12
Fine-‐grained
access
to
APIs
๏ OAuth2
is
all
about
access
control:
a
token
is
associated
to
a
scope.
๏ XACML
(eXtensible
Access
Control
Markup
Language)
is
the
de-‐facto
standard
for
fine-‐grained
access
control.
๏ OAuth
scope
can
be
represented
in
XACML
policies
๏ Provides
fine
grain
control
over
what
a
user/applica?on
can
do
(
i.e.
you
can
call
GET
but
not
POST
on
an
API)

13
Passing
Auth
Informa:on
to
back-‐end
services
๏ Using
JSON
Web
Tokens
(JWT)
๏ Lightweight
๏ Can
be
signed
๏ Easy
to
parse
and
consume
๏ Standard

14
Token
Format
๏ JWT
Structure
{token
info}.{claims
list}.{signature}
๏ Base-‐64
Encoded

15
What
are
Claims
?
๏ Claims
are
a
set
of
ahributes
about
a
user,
mapped
to
the
underlying
user
store.
๏ A
set
of
claims
is
called
a
dialect

16
Deployment

17
Gateway
vs.
ESB
๏ Oh,
but
I
already
have
an
ESB
!
Why
do
I
need
a
gateway
?
๏ API
Gateway
vs.
Media)on
Layer
(ESB)
๏ Gateway
=
light
ESB
?
๏ Think
ESB
as
an
architecture
pahern,
not
a
product!

18
Generic
Facade
Pa.ern
๏ Pros
๏ No
addi)onal
hop
in
the
network
๏ Single
Server
to
be
managed
๏ More
suited
for
internal
deployments
๏ Cons
๏ Complexity
of
integra)on
at
edge
of
network
๏ API
Management
layer
can’t
really
scale
independently
๏ Not
appropriate
for
DMZ
deployments
(direct
access
to
backend
services)

19
Separated
Facade
&
MediaWon
๏ API
Gateway
Layer
acts
as
simple
reverse
proxy,
enforcing
basic
policies
๏ Clear
separa?on
of
concern
between
layers
๏ Media?on
layer
and
API
management
layer
scale
independently
๏ Specific
security
checks/protec?on
at
edge
of
the
network
๏ Provides
protocol
transforma?on
to
the
edge
of
the
network

20
Specific
WSO2
SoluWon
๏ Our
API
gateway
is
actually
a
full-‐blown
ESB
under
the
hood,
constrained
at
UI
level.
๏ You
can
install
the
missing
ESB
features
on
top
of
API
manager
and
combine
both
architecture
layers
into
a
single
run)me!
๏ Makes
the
choice
a
deployment
one.

21
Typical
Deployment

22
Users
Store
๏ Separate
admins
/
corporate
users
from
the
developers
users’s
store
(created
via
self-‐sign
up)

23
You
can’t
manage
what
you
can’t
measure.

24
Why
Analy:cs
and
API
Management
are
important
together?
๏ Build
confidence
in
the
API
model
๏ Understand
your
customer
๏ Not
just
the
developer
but
also
the
end-‐user
๏ Help
manage
services
and
versions
๏ Understand
when
deprecated
services
can
be
re?red
๏ Plan
beZer
๏ Monitor
the
growth
of
aggregated
API
traffic
๏ Monitor
the
growth
of
specific
apps
๏ Even
if
you’re
not
going
to
put
analy?cs
in
place,
make
sure
you
capture
all
events
right
from
beginning
of
project.

25
AnalyWcs
101:
AggregaWon
• How
to
collect
data
efficiently
• How
to
store
data
effec)vely
• Choose
which
data
to
capture

26
AnalyWcs
101
:
Analysis
• Data
opera)ons
• Defining
KPIs
and
analy)cs
• Opera)ng
on
large
amounts
of
historical
or
current
data
• Crea)ng
intelligence

27
AnalyWcs
101
:
PresentaWon
• Visualiza)on
• Dashboards
• Reports

28
Monitor
And
Analyze
๏ Take
decisions
in
real
?me
through
Complex
Event
Processing
๏ Create
dashboards
for
both
technical
and
business
monitoring

29
DetecWng
Usage
Pa.erns
๏ My
API
customer
is
trying
to
steal
my
business
:
let’s
block
them.
๏ A
customer
is
at
80%
of
API
plan
:
let’s
warn
them
๏ A
customer
is
systema)cally
at
120%
of
the
plan
:
propose
an
upgrade
to
the
premium
plan

30
Demo

31
Demo
Setup

32
References
๏ Building
an
ecosystem
for
API
Security
(White
Paper)
๏ hhp://wso2.com/whitepapers/wso2-‐whitepaper-‐building-‐an-‐ecosystem-‐for-‐api-‐
security/
๏ API
Facade
Pahern
(Webinar)
๏ hhp://wso2.com/library/webinars/2014/01/implemen)ng-‐api-‐facade-‐using-‐
wso2-‐api-‐management-‐plaEorm/
๏ API
Management:
missing
link
for
SOA
๏ hhp://sanjiva.weerawarana.org/2012/08/api-‐management-‐missing-‐link-‐for-‐
soa.html
๏ Promo)ng
Service
Reuse
๏ hhp://wso2.com/whitepapers/promo)ng-‐service-‐reuse-‐within-‐your-‐enterprise-‐
and-‐maximizing-‐soa-‐success/

33
Download
API
Manager
today!
๏ hhp://wso2.com/products/api-‐manager/

Contact
us
!

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