B4J Code Snippet Spark Framework POC

Hi! so i was chatting with @ilan about the idea of having multiple entries on the url parameters.

URL Routing?

hi i would like to know how i can in the Server Handler map a dynamic url. something like this: 'app.get('/users/:userId/books/:bookId',function (req,res){ ' //... '}) url to call it: http://localhost:3000/users/34/books/8989 now i know i can add the * at the end of the...

www.b4x.com

Due my experience, i know this is not possible, until later in the day i found in some documentation on Stripe that Spark (jetty based) actually allows to do this.

Spark Framework: An expressive web framework for Kotlin and Java

Spark Framework - Create web applications in Java rapidly. Spark is a micro web framework that lets you focus on writing your code, not boilerplate code.

sparkjava.com

So I decided to test it and vuala! it worked!

Called: http://localhost:4000/hello/ilan/age/25
Code: Log($"hello ${name}, age ${age}"$)
Logged: hello ilan, age 25

Of course this is just a proof of concept, i actually can return only "world" (lol ?) to the browser

if you want to run a spin download the jar from here:

Download com.sparkjava JAR files with all dependencies

Download com.sparkjava JAR files ✓ With dependencies ✓ Documentation ✓ Source code

jar-download.com

as it will get you all the dependencies.

this was just to demonstrate that for some reason Jetty doesnt allow parameters, but spark that is built on top of it allows. may be we are just missing something? only time will tell.

'Non-UI application (console / server application)
#Region Project Attributes 
    #CommandLineArgs:
    #MergeLibraries: True 
    
    #AdditionalJar: spark-core-2.9.3.jar
    #AdditionalJar: slf4j-api-1.7.30.jar
    #AdditionalJar: javax.servlet-api-3.1.0.jar
    #AdditionalJar: jetty-server-9.4.31.v20200723.jar
    #AdditionalJar: jetty-util-9.4.31.v20200723.jar
    #AdditionalJar: jetty-http-9.4.31.v20200723.jar
    #AdditionalJar: jetty-io-9.4.31.v20200723.jar
#End Region

Sub Process_Globals
    
End Sub

Sub AppStart (Args() As String)
    
    Dim sp As JavaObject
    sp.InitializeStatic("spark.Spark")
    sp.RunMethod("port",Array(4000))
    
    Dim event As Object = (Me).As(JavaObject).CreateEvent("spark.Route","getter","world")
    
    sp.RunMethod("get",Array("/hello/:name/age/:age",event))
    
    StartMessageLoop
End Sub

public Sub getter_Event (MethodName As String, Args() As Object) As Object
    Dim req As JavaObject = Args(0)
    
    Dim name As String = req.RunMethod("params",Array(":name"))
    Dim age As String = req.RunMethod("params",Array(":age"))
    
    Log($"hello ${name}, age ${age}"$)
    Return ""
End Sub

 

[ilan]

i knew it is somehow possible ?

thank you @EnriqueGonzalez, you are amazing! (enjoy your coffee )

 

[ilan]

btw, my age is 40 not 25 ?

so, how do we use it in our Server Handler?

 

[LucaMs]

btw, my age is 40 not 25 ?

On this site it should be forbidden to write about politics, religion and mainly about age (since I am almost the sum of those two)
?