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260642577 RDC is a middleware server that makes it simple to safely connect clients and remote SQL database servers. jRDC2 is the latest version. All new projects should use this version. jRDC2 is made of two components: - B4J server. The server receives the requests from the clients, issues the
link: jRDC2 is a regular B4J server application. See these instructions: https://www.b4x.-run-a-server-on-a-vps.60378/#content
link: I agree with @Enrique Gonzalez R. jRDC2 code is quite simple and it is not difficult to add another handler or modify the existing handler and add sup
link: Good question. jRDC 2 is compatible with v1 and v2 clients. V2 clients (DBRequestManager) are only compatible with jRDC 2.

That's wrong. jRDC2 is a simple B4J server solution. You can extend it and add a WebSocket handler or a regular http handler.
link: It is not. JRDC2 core technology is Types and B4xSerializator. I clearly mentioned that as is, you can't use it. You need to modify it.
link: The short version is you can't. JRDC2 uses a B4x technology that doesn't have a counter part in JavaScript The long story is that it is actually pos
link: I run my jRDC2 server with mysql db on VPS server. I connect with android app on mobile and app.jar build with b4j is used to connect from computer. A

By default, jRDC2 is a non-UI app so you don't need to use the B4JPackager11. Just compile as Release (or with Obfuscation) and upload the jar file to your remote server. Call the jar using nohup in Linux VPS.
link: There are two good options: 1. Create a standalone package using the integrated packager. It supports non-ui projects. 2. Copy / download Java to your
link: Hi B4X people, I've made great use of this forum over the years but this is the first time I've been stuck enough to need to ask a question - I feel l
link: Hi Erel, I've done that, but I can't get jRDC to start, so I'm stuck. 141667 The jrdc2.jar is in the jrdc folder so I should be able to start i

No. jRDC2 is a middleware server. If you want yo connect directly to your MySQL server you need to use another way. https://www.b4x.-android-to-mysql-database-tutorial.8339/
link: On my free hosting Server: sql12.freemysqlhosting.net That's what I want to know Do I have to run jRDC2 on a computer even if I want to connect onl

Like all backend solutions you do need to understand what you are doing. jRDC2 is the most secured solution available for remote database access.
link: In learning this new platform I had seen info on JdbcSQL and had wrongly associated it with jRDC. I see now that the jRDC2 is the route to go and am a
link: Sorry, I was over-complicating it. It looks as if jRDC2 may be the solution. I originally discounted it because I thought I had read somewhere that i

A JRDC2 is a B4J Project. The jRDC2 can not run in android. You can FOR SURE use a b4a client to connect to a jRDC2 server to fetch or send Data. See the jRDC2 tutorials.

Hi Daniel44, just to clarify: - jRDC2 is a B4J program, you compile it in B4J as OliverA told you, and you need a VPS where you can host the .jar. It will act as a server. - The jRDC2 server, will connect with your database - Then, you can access the jRDC2 server from another B4J client program, or
link: Actually, jRDC2 is designed to be compiled with B4J, not B4A. It can be accessed via B4A/B4i and B4J (B4R via a MQQT gateway). If you want to access y
link: I have seen tutorials here and on youtube but the only thing I see is that you have to run a server which only runs with B4J and then make it work on

Note that it is not a library. jRDC2 is a solution based on jServer. jRDC2 uses B4XSerializator to serialize the client requests and the server responses. It will be difficult to use it as-is from PHP. However it should be quite simple to add a handler that will accept a different format such as js
link: Hello everyone, I was checking this library (https://www.b4x.com/android/forum/threads/b4x-jrdc2-b4j-implementation-of-rdc-remote-database-connector.

If you are talking about jRDC2. This is the port which you use to connect to the RDC. The port must be accessible. Just just the default. The port is not related to PostgreSQL, Django or TomCat. In the jRDC2 Config you do define the connection to the Database (jRDC2 is the Middleware) including the
link: PostgreSQL DB on a 'remote' server? How remote? Is it in the domain? You typically want the database server locked down and have an application server
link: Hello, I am working on an application in B4A. This application consumes information from PostgreSQL DB hosted on a remote Ubuntu server. Use Tomcat I

It's up to you. jRDC2 is a B4J server and it supports SSL connections (if you configure it properly). You cannot hide the server url and port from a network sniffer.

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