The document provides a 5-step process for writing a web app in under 140 characters using Spring Boot, Groovy, and optionally deploying to a cloud provider: 1) Use Spring for dependencies injection and MVC; 2) Use Spring Boot for creating a production-ready service; 3) Use Groovy as the programming language; 4) Run the app using 'spring run app.groovy'; 5) Optionally deploy to a cloud using commands like 'cf push'.

1. HOW TO Write a Web App
in < 140 characters*
!
!
* (i.e. it fits inside a tweet!)
@andypiper

2. Step 1: Spring

3. http://spring.io

4. XD
BOOT
Stream, Taps, Jobs
GRAILS
Bootable, Minimal, Ops-Ready
Full-stack, Web
INTEGRATION
BATCH
BIG DATA
WEB
Channels, Adapters,
Filters, Transformers
Jobs, Steps,
Readers, Writers
Ingestion, Export,
Orchestration, Hadoop
Controllers, REST,
WebSocket
DATA
RELATIONAL
NON-RELATIONAL
CORE
FRAMEWORK
SECURITY
GROOVY
REACTOR

5. Step 2: SPRING BOOT

7. Step 3: GROOVY

10. Step 4:
spring run app.groovy

12. Step 5: extra credit
shell, PUSH*
!
!
*(OPTIONAL, your CLOUD OF CHOICE)

15. cf push!
!
http://hello-ljcconf.cfapps.io

16. Thank You!