server

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Hi, i just got response from one of my app-testers that sometimes the sync doesn´t work. After some investigation i see that the app thinks that the changes inside the app are older than on the server. I use a kind of timestamp based on utc to find out wich version is the current. In the app i...

Hi, I'm trying to write a local reverse proxy. What it does is: - accept traffic on a local port - send the data back and forth between the local port and a remote port eg: A synology NAS Cloudstation client only works on port 6690 but I would like to be running my local B4J application that...

This article: https://www.w3schools.com/html/html5_serversentevents.asp describes Server Sent Events. It would be pretty neat to be able to implement the server side of this in B4J. Jetty has an EventSourceServlet that does this...

Error * daemon not running; starting now at tcp:5037 could not read ok from ADB Server * failed to start daemon adb.exe: failed to check server version: cannot connect to daemon ----------------------------------------------------------------------- - The error appeared by itself, it worked...

Does anybody have some running JRDC2 code that does this? I've been trying to adjust the code without luck. The client application connects to a central database (database 1). The result from the query is the name of the database and the location of the database on the server (full path + name...

Websocket: it has RunFunction on server, SendText on client; why that difference? It is true that I will probably use SendText on client the same way I use RunFunction on server, but this is not 100% sure, I might want to do it differently and therefore it may be useful/necessary to have...

Im using a library that included slf4j as a dependency. What Ive noticed is that when I include this library my (Jetty) Server starts logging at the debug level. According to the Jetty documentation documentation this is expected; If the class org.slf4j.Logger exists in server classpath, the...

Hola a todos, esperando que esten todos bien, les pido ayuda. Se que es algo que seguramente es algo sencillo pero no encuentro respuesta al problema que me ha surgido, estoy haciendo una aplicacion en B4J para la lectur de una tabla en MS SQL Server y tengo un campo tipo Bit, solo que al...

I just bought b4i and I am trying to compile the first application. In this case, I took the EREL app (Joints 1) as an example. When I click on execute (F5) I get an Error: Sending data to the remote compiler. I already tested the communication from WINDOWS to MAC using a browser and typing...

I refer to the following post: Android Tutorial - Embed an Http Server in your Android Application The HttpServer library is a new library, based on an open source project named Jetty. This library allows you to easily embed an Http server in your application. Http server means that you can...

I tested a chat example and works well, but this case the android start the connection with ESP32. I need that the ESP32 start a connection with android I found an example for ESP32 as server but the Android aplication doesn´t open a connection Example for arduino sdk with ESP32 Bluetooth as a...

To build a web server with B4J there are some code examples in the forum: https://www.b4x.com/android/forum/threads/server-building-web-servers-with-b4j.37172/ and https://www.b4x.com/android/forum/t...p-to-your-b4j-server-over-the-internet.37201/ The code worked approx. three years ago. Now I...

As recommended by @Erel in this thread, I have commenced migrating the communications in my project from http to websocket, however it's not been as simple as I thought it would be. In replacing the http based comms part of my project I hit some "roadblocks". So created a simple project to...

As recommended by @Erel in this thread, I have commenced migrating the communications in my project from http to websocket, however it's not been as simple as I thought it would be. In replacing the http based comms part of my project I hit some "roadblocks". So created a simple project to...

Hi guys, I just want a confirmation that these steps are correct when APN certificate is about to expire From Apple developer console generate the new APN certrificate aps.cer and copy it in B4i keys folder in B4i Keys folder, leave only the new aps.cer (move to other folders other existing...

Hi I build a ABM app. (1) I want to send binary data from frontside with websocket. (2) I build a server websocket class module in the server side. (3) I will receive binary data from websocket's input stream in run-time. my question is o_O (1) How can i monitor the data received and then read...

Hi all experts, I am hoping someone can help me out here. I have used the South African payment gateway 'Payfast' in the past with a website I created by simply directing the user to a payfast server URL with all the required transaction parameters in the query string, the server then sends the...

I am TRYING to send UDP Packets back and forth from a B4J Client to a B4R Server (ESP8266 is the Server ). The ESP8266 is set to an AP and I connect the B4J client to the ESP8266 SSID which I set. That all works. I can send from the B4J Client and Receive on the B4R side. Then I take the...

Hello, Recently i changed my laptop to a new one and re-installed all my softwares and updated to some newer versions. I got this error from jRDC2 connecting to a MySQL database. I'm using MySQL server 8, and JConnector 8: mysql-connector-java-8.0.17.jar I already opened ports 17178 inbound and...