Hello everyone, I have some dump question about Web Application, I’m newbie in Web industry . I have...

# server

[Sam]

Hello everyone, I have some dump question about Web Application, I’m newbie in Web industry .
I have used Ktor for building my own API . But I’m so curious about Web Architecture between Java and Ktor.

So what different Web Application between building base on `java`(Spring Java EE) and Kotlin (Ktor) ???

What is the relationship of Java and Kotlin when developing web? What different ? what the same things?

Thanks

[gildor]

Ktor core doesn't use Java EE APIs
Also Spring is not a part of Java EE, tho can be compatible and used together
Anyway, if you use Ktor and you do not integrate with existing Java ee API or you don't need any integration, just don't worry about it. Ktor is standalone framework

[gildor]

Tho Ktor supports deployment as servlet, so can be run on any servlet container.
I would just recommend you to read what particular technology provides if you want to be familiar with it, but also you can just use Ktor and follow Ktor documentation

[Sam]

@gildor: thank you so much about it .
But Ktor must follow the same architecture diagram such as Application Server, Web Server, Web containers. right ?

[gildor]

No

[gildor]

This diagram of Java EE framework

[Sam]

@gildor: Do you have any book’s name or link to read the whole picture about Ktor Architecuture diagram which look like above picture Java EE.?

[gildor]

Ktor can be run as a servlet on this diagram

[gildor]

Why do you need this? Just curious

[gildor]

There is Ktor documentation that covers features and request/response flow

[Sam]

I want to study Web development and choose the Ktor for my feature. So I need to have a knowledge about web architecture and Ktor Architecture.

[gildor]

I mean web architecture != java ee

[gildor]

Java ee just set of libraries and standards

[Sam]

Do you have any idea to go through this knowledge ? or roadmap to Ktor developer/ Web developer ?

[Sam]

Sure, I know Java EE != web architecture.

[gildor]

What kind knowledge?
If you gonna learn Java EE, than read Java EE docs/tutorials, it will not help you with Ktor, it's just particular technologies stack

[gildor]

If you need general knowledge about server development or web services architecture there is a lot of material in Google, but it also not directly related to Ktor, it's just one more framework go build web services

[Sam]

ohm, ok ., I got it
What kind knowledge? the knowledge relevant to how Engine and Server work together, or general knowledge for Backend.

[Sam]

woww, thanks @gildor, really appreciated your explanation.

[gildor]

Engine?

[Sam]

this httpClient engine

[gildor]

Http client is not a server, it's http client

[gildor]

Like any other http client library, just an API to simplify http requests

[Sam]

And these things is an environments to run Application Standalone ,right?

[gildor]

Actually it's covered very well 8n official documentation
https://ktor.io/clients/http-client/engines.html

[Sam]

Thanks @gildor

[Sam]

I’m reading it

[gildor]

run application standalone

Yes for Netty/Jetty/CIO, not for tomcat, where you run Ktor as war container

[Sam]

This can be used standalone, and does not need a running Tomcat server
Ref : https://tomcat.apache.org/tomcat-8.0-doc/deployer-howto.html

=> You mean we shouldn’t use tomcat for Application Standalone, because you must include Tomcat in package ( (war/jar) right?

[gildor]

Not sure that cited phrase related to Ktor war packaging, it looks that it related on providing tomcat dependencies as part of war

[Sam]

thanks @gildor. You know, I’m newbie so
I’m have some confuses about We can not run application standalone with Tomcat. Can you explain more about that?

[napperley]

henry - Do you really need to use a servlet container? Would recommend going with a web server like Netty ( https://ktor.io/servers/configuration.html#netty ), or Jetty ( https://ktor.io/servers/configuration.html#jetty ) with Ktor.

[gildor]

Or even CIO engine