Documentation - would be good to have some schema explaining HelloWorld

[agolubev]

HelloWorld seems to be the simplest application. However, on Lagom it's still a lot of moving parts so this may be confusing for newbie. I attached schema that supposes to give a general understanding on minimal Lagom application as well as processes inside.

Let me know if this makes sense.

[ihostage]

HelloWorld seems to be the simplest application. However, on Lagom it's still a lot of moving parts so this may be confusing for newbie.

You right, HelloWorld is very complex for a newbie 😉

[agolubev]

Well, it's not a rocket science - but it's definitely not obvious (at least from first glance) :)
Actually showing hello world in cluster mode would be more interesting

[WadeWaldron]

Not to be negative, but it seems to me that any Hello World that requires an architecture diagram has failed to be a Hello World.

If I Googled "Lagom Hello World" and the first thing I saw was this diagram, I would probably move on to a different technology.

The problem here is that the Lagom "Hello World" isn't actually a Hello World. A typical Hello World application simply prints text to a screen, or a web page or whatever. This is writing data to database, it's doing streaming, it's putting messages on a Kafka topic. This is many steps beyond what a Hello World should be. A true Lagom Hello World would only demonstrate how to use the Service API to return the string "Hello World".

[agolubev]

Well, Lagom has Chirper and Online Auction - they are fully functioning examples.
So my understanding is that we'll need to simplify hello world and create schemas for thoseChripher and auction applications. But I guess need input from Lafom team at this point

[agolubev]

My point is that with a simple image it's so much easier to understand main moving parts.