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lagom/README.md

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+### Relevant articles
+
+- [Guide to Reactive Microservices Using Lagom Framework](http://www.baeldung.com/lagom-reactive-microservices)
+
+
+
+
+Steps to setup from scratch
+
+1) Create sbt build file "build.sbt" 
+2) Create plugins file project/plugins.sbt
+3) Create build properties file project/build.properties
+4) Run sbt command from project root to generate project directories, generated projects at target/lagom-dynamic-projects
+   Service Locator project: lagom-internal-meta-project-service-locator
+   cassandra project: lagom-internal-meta-project-cassandra	
+5) Create folders in all projects to follow maven like directory structure layout for project source code: src/main/java and src/main/java/resources and test folders.
+6) Weather microservice
+	a) WeatherService Interface with method:
+		weatherStatsForToday()
+	b) WeatherServiceImpl to return weatherstats from a random list of weather stats
+	
+7) Greeting Microservice
+	 GreetingService Interface: 
+		handleGreetFrom(String user)
+		
+	a) Reply back to user with greeting message("Hello") along with weather stats fetched from weather microservice
+	b) Update the greeting message("Hello Again") for an existing user.
+	
+8) GreetingEntity: PersistentEntity<GreetingCommand, GreetingEvent, GreetingState>
+	a) handles ReceivedGreetingCommand 
+	b) Stores ReceivedGreetingEvent events to cassandra 
+	c) Processes ReceivedGreetingEvent to update GreetingState("Hello" to "Hello Again") if required.
+    
+9)  Register modules with lagom using application.conf files.
+10) Run project: sbt lagom:runAll
+	
+
+Sample Run:
+curl http://localhost:9000/api/greeting/Nikhil;
+Hello Nikhil! Today's weather stats: Going to be very humid, Take Water
+
+curl http://localhost:9000/api/greeting/Nikhil;
+Hello Again Nikhil! Today's weather stats: Going to Rain, Take Umbrella
+
+
+
+