B4J Question [BANanoServer] Executing ws.b4jSend

Mashiane · Mar 4, 2022

Hi there

Following on the BANano Essentials Ebook, my BrowserIndex and ServerIndex code has been updated to use ws.B4JSend.

For example, in my BrowserIndex, I have

B4X:

...
ws.B4JSend("DirectMySQLOnServer_BAN", payload)
...

and inside the ServerIndex.DirectMySQLOnServer_BAN sub, I am calling db related functions.

For example..

B4X:

...
Dim doit As ResumableSub = dDB.SQLRunQuery(query, args)
Wait For(doit) Complete (Result As Boolean)
...

My code is working very well, however I just need to confirm if what Im doing is not abnormal and might cause unexpected bahaviour.

Thanks in advance.

nedium · May 30, 2022

Hi,

I'm trying to connect 'BROWSERTemplate' with 'SERVERTemplate' but I can't find what works, I don't know if I'm leaving something out.

Thanks

alwaysbusy · May 30, 2022

nedium said:
I don't know if I'm leaving something out.

Hard to tell without seeing your code

nedium · May 30, 2022

Button_Click:

ws.B4JSend("Suma_BAN", CreateMap("counter": 5))

--------------

In 'BROWSERTemplate':

Public Sub dato(ss As Int)
    WelcomeModalMessage.Text = "suma " & ss   
    WelcomeModal.Open
End Sub

-------------------

In 'SERVERTemplate':

public Sub Suma_BAN(params As Map)
    Dim n1 As Int = params.Get("counter")
    Dim suma As Int = n1 + 10
    ws.RunFunctionWithResult("dato",Array(suma))
    ws.Flush
End Sub

-----------------------------------------------

I don't know if I'm doing things right, I'm really trying to find a way to communicate both sides and then include other methods and show results on the page.

Thank you very much for the help

alwaysbusy · May 30, 2022

Do you get errors, either in the B4J log or in the Browsers console (F12)? I tried your code and I got the dialog popping up:

nedium · May 30, 2022

Hi,

Yes, you are right, I had an error in the console, it was pointing to another port, I am going to do tests to practice how to show data from the server to the page, if I have any other questions I will ask.

thank you very much for your help

B4J Question [BANanoServer] Executing ws.b4jSend

Mashiane

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alwaysbusy

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nedium

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