1. ExtJs and microservices
For:
Ext-mas Meetup
By:
Niels Liisberg,
System & Metode A/S
Wednesday, April 10, 2019

3. Why micro services? Run in any environment. JSON in, JSON out.
Easy unit testing
Graceful error handling.
Can be written in any language
Can be reused, called from an other application
Don’t rely on HTTP – why not a dataqueue?
Easy to debug
Easy to extend
Require some kind of routing

4. Micro services in node.js
Seneca
Is a micro service framework for node.js – Can we make it run on power – let’s try:
ssh to your server ( mine is dksrv206)
Mkdir /seneca
git -c http.sslVerify=false clone
cd getting-started
Npm install
echo "require('seneca')().use('math').listen()" > msTest.js
node msTest.js
Now try this in your browser:

5. Demo time

6. How we use microservices
Browser
Tablet Smartphone
Partner
B2B
Applications:
C#/java
Data Provider
(Service)
REST
SOAP
Sitemule™ micro services
IceBreak
IceCap
Ninja DB
Node.js
Liberty/ Tomcat
Fast CGI
Python
Ruby
Rails
PHP
CGI
RPG
5250
Java Script
Java Script
Java

7. Micro service architecture
Kunde
Levering
Graddage
Måler
Bestilling
Faktura
order
Items
Prices
History
Customer
Relations
DB2