jserver

Good morning team, Everything was working fine until i uploaded realeased jserver to VPS (fresh install). jServer was starting normally and webapp was visible but connection to supabase was unavailable. So i checked log files and here are the results: SupabaseAuth: User is logged out, this user...

Hello everyone! In the past few years i have been working with many people here in the forum with a wide range of projects yet all of them have in common that they need a server, sometimes for a simple JRDC2 and other times for a full fledged Jserver implementation. Well today i am offering a...

Hi guys, is it possible implement websocket-server for ocpp in b4j ? info: client send non-standard map/json payload data b4j, example pdu code (payload) client : [2,"1234","Heartbeat",{}]...

Im trying to Initialize websocketclient in jserver app. websocketclient will connect to outer websocket server and starts to listen after jserver started. Now Im getting an error while initialing. How can I do this ? is it possible to run jserver and websocket clients in same app ?

Hello, everyone! Please help me. How can I handle a postmultipart in JServer? I have a client using httpjob postmultipart. Libraries.httpJob.PostMultipart(Variables.URL & path, CreateMap("key1": "values1", "key2": "values2"), Null) I tried using getMultipartData and this is what I got...

Hello to everyone! I have found a strange thing happening that I'd like to share and get feedback about from the comunity. I have been recently working on a jServer application (with a fair amout of Websocket use) that will be receiving files to be processed. These files will range between 1kb...

Hi, I'm looking for solution for issue I found - if I use file input element with option "multiple" to be able to upload for examle 10 files in one time, then result of Dim parts As Map = req.GetMultipartData(File.DirApp & "/upload_tmp", 10000000) is always map with just last file from multipart...

I'm reading a w3schools document where they talk about Server-Sent Events technology It is described as a system that allows you to send web pages from the server to the client So by reversing the normal data flow, it is no longer the client who has to query the server but it is the latter that...

Hey All, I've been scouring the forums trying to find some examples of using a Connection Pool for a B4J UI application, but while I've found references to "you should be using it", I haven't found anything that tells how. I've downloaded the library files, but there wasn't an example...

Hey All, I've been going through the forums trying to solve this one, but can't seem to get it. I created a Jserver as a webhook for SMS return messages from Nexmo (vonage). I tested it on my local PC running Windows with Postman emulating the SMS service. It receives the returned...

Attached the source code and some description on a tool I wrote to generate SSL certificates to be used in B4J http server applications. It generates and renews certificates (even wildcard ones) on Let's Encrypt and communicates with the CloudFlare API to do DNS challenging. The code has been...

I'm trying to get the ABMaterial demo app running on my VPS via reverse proxy. Everytime I try to go to the URL, I get an "Internal Server Error" message. It works fine when I access it via IP My vHost file: <VirtualHost *:80> ServerName abm.leftwinggamers.com Redirect /...

I followed the instructions in https://www.b4x.com/android/forum/threads/jserver-websocket-disconnected-event-doesnt-fire.79410/#post-503361 , but it didnot work. I have some small factors computers with ubuntu, if i turn them off, no closing the application client, the server detect the...

Hey, I'm writing an API for my app and while analyzing other APIs I've noticed that many are doing the authentication with oauth. My question is how can i do a "bearer authentication" for my own jServer and is this free? Greetings

Reading (and badly answering) this thread: https://www.b4x.com/android/forum/threads/question-about-jserver-websocket-handle.95966/ I learned that if a websocket was closed, the related session would not automatically be destroyed. So now I have many doubts. In my project (b4j - jServer), when...

Hello All, I am playing with the jServer lib. How can I make a handler that receives a parameter and returns a code to the client ? For a simple example that I want to do: Service Handler named payment that accepts a money amount 127.0.0.1:8888/payment 00000500 The service catches the...

Hi guys, Imagine an application you want to create for/with 1 million users. What protocol do you use for this volume of connections? my options for server side are : WebSocket ( jServer library - b4j ) MQtt ( I run a broker or MqttClient ) Node JS ( my knowledge is weak about it ) What do...