4. Contract
&
ImplementaUon
Sources
-‐
h;p://www.fujifilmholdings.com/en/sustainability/acUvityreport/csr/fpd/index.html,
API
Contract
API
ImplementaUon
5. Façade
Pa;ern
Provide
a
unified
interface
to
a
set
of
interfaces
in
a
subsystem.
Facade
defines
a
higher-‐level
interface
that
makes
the
subsystem
easier
to
use
9. MediaUon
• It
is
possible
to
combine
façade
and
mediaUon
layers
into
a
single
layer
to
reduce
latency
and
maintenance
overhead
but
generally
it
is
recommended
to
keep
these
two
layers
separately
• When
WSO2
Business
Process
Server
used
in
mediaUon
layer
it
actually
perform
“Service
OrchestraUon”
• If
the
backend
service
is
API-‐friendly
then
it
is
possible
to
omit
this
layer
so
that
API
façade
directly
call
backend
services
but
this
is
depends
on
business
level
requirements
as
well
11. WSO2
ESB
• High
performance
ESB
based
on
Apache
Synapse
• Provides
message
and
service
mediaUon
• Facilitate
to
expose
exisUng
legacy
system
as
APIs
• API
implementaUons
can
be
• A
REST
API
• A
Proxy
Service
12. API
creaUon
with
WSO2
ESB
API
MediaUon
Backend
service
Backend
service
API
API
Proxy
API
SOAP
XML
TEXT
CVS
Binary
FIX
SAP
EJB
VFS
Pass-‐through
JMS
AMQP
MQTT
API
Gateway
MediaUon
13. WSO2
ApplicaUon
Server
• Lightweight
applicaUon
server
based
on
Apache
Tomcat
• API
implementaUons
can
be
• JAX-‐RS
service
• JAX-‐WS
Service
• Jaggery
REST
service
• Axis2
REST
or
SOAP
service
• Can
be
also
used
to
host
back
end
service.
• Binary
services
based
on
Protocol
Buffer
14. API
creaUon
with
WSO2
AS
API
Services
on
AS
API
API
API
Gateway
JAX-‐RS
JAX-‐WS
Jaggery
Axis2
Pass-‐through
15. API
creaUon
with
WSO2
AS
API
MediaUon
service
on
AS
API
API
Proxy
API
API
Gateway
MediaUon
JAX-‐WS
Axis2
Binary
Binary
(TCP)
HTTP/JMS
HTTP/S
HTTP/S
16. WSO2
Data
Services
Server
• Encapsulate data access logic and expose as standard services
– RESTfull data services
– SOAP 1.1/1.2 based services
• Support for service management & QoS features
– Security , Transactions Throttling, Caching ,Data
Federation
• In-built data sources and ability to create your own
– RDBMS – MySQL, Oracle, DB2, MS-SQLServer, Postgresql
– NoSQL - Cassandra, MongoDb
– Google spread sheet, Excel , CSV
17. API
creaUon
with
WSO2
DSS
API
Data
Services
API
API
API
Gateway
REST
SOAP
Pass-‐through
18. WSO2
Business
Process
Server
• Expose
business
process
wri;en
in
BPEL
as
services
and
execute
them
• Based
on
Apache
ODE
engine
•
Support
for
WS-‐BPEL
2.0,
BPEL4WS
1.1
,
BPMN
•
Full
persistent
support
for
long-‐running
processes
19. API
creaUon
with
WSO2
BPS
API
OrchestraUon
Backend
service
Backend
service
API
Business
Process
API
Gateway
OrchestraUon
Service
20. WSO2
Business
Rule
Server
• Business
rules
are
exposed
as
services
• Default
rules
engine
is
Drools
but
possible
to
plug-‐in
any
engine
supported
for
JSR-‐94
• Basic
rule
support
also
available
in
WSO2
ESB
as
a
mediator
21. API
creaUon
with
WSO2
BRS
API
Rule
Services
API
API
API
Gateway
REST
SOAP
Pass-‐through
22. API
Everywhere
The
idea
is
to
embed
API
Gateway
capabiliUes
into
carbon
based
products
to
provide
API
management
capabiliUes
without
another
network
hop.
• For
small
deployments
API
Store
,
API
Publisher
and
Key
Manger
can
also
embedded
into
same
carbon
instance
• Reduce
latency
• Reduce
cost
for
small
or
medium
scale
deployments
• Not
a
replacement
for
distributed
API-‐Manager
deployments.