I have a XAMPP web server running as well as MySQL running. I have a website that interacts with my database, but I was wondering how I would go about interacting with my database with HTTP requests, in my case through Lua. Any examples or tutorials you point me to would be great, thanks.
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I am just starting to use Electron and I have a question about databases. Due to the kind of App I am developing I need a relational DB.
The idea is the user will open the App, if there is connection it would store the data both locally and remotely. If the App is offline it will store the data locally and whenever is online again it will send that data to the remote server. Basically it will be thee same database (local and remote) but it can work offline if necessary.
I am lost on which database will be better for this. As I said I am using MySQL right now and I know you can use MySQL with nodejs so I might give it a try. Also, I am used to use MySQL within a backend language such as PHP, how would you do it in Electron?
Thanks for your time guys!
I am developing a desktop app and I want to store data in hosted database like MySQL/MongoDB. I know one solution is using webservice to manipulate db. I am wondering is there a way to connect desktop app with hosted db directly.
I am using OpenShift I know I can use port-forward to do this. But it's unpractical to open port forward every time for every PC. So is a way simply like this:
mongoose.connect('mongodb://user:pass#host:port/db');
I tried this but I got 'connect refused' or 'connect not found' errors. OpenShift doesn't allow external access to database directly because security issues, right? Then how could I do it without port-forward?
Also I read some articles about SSH, is it possible to use SSH to access db directly when desktop app is launched?
Thanks for any suggestion.
I don't think OpenShift is going to be a good fit for what you are trying to do, unless you decide to build a service layer between your desktop app and the database. It sounds like you are looking for a Database As A Service. You mentioned both MongoDB and MySQL. MongoLab is a good MongoDB DBaaS option. For other databases like MySQL, PostgreSQL and several others you could look at Amazon RDS.
I have been searching this topic for a long time but I haven't found the answer I wanted. I want to connect to a MySQL database on a client-server and insert some info on a table using an app I made using PhoneGap. I found things like that but didn't seem to do what I want them to do: http://docs.phonegap.com/en/2.7.0/cordova_storage_storage.md.html#SQLTransaction
This documentation page doesn't make any sense to me.
Does anyone know how can I solve my problem? Thanks in advance.
You normally don't access database on your server dirrectly from the app in your phone.
The doc you saw about SQLTransaction is about writing data to the SQLite database that is inside your device, not to write to a remote database.
What is usually done to communicate with a remote database is we perform http requests to a web server (php, java, .net, ruby, perl or whatever you like) and that server will communicate with the database server.
If you really want to communicate with your mysql server from your phonegap app, you would have to include native mysql libraries in your project and write native code to communicate with the mysql server. And I don't think it woule work very well through a data connection...
I am currently running a virtualized environment for my web and db server. When I access the web server or the MySQL server individually, they are both fast. I also have websites running on the web server that do not require the db server and those all load quickly. However, when I access my hosted website that requires the web server to call from the db server, there is about a 5-7 second latency for every page load. This has been confirmed with both a very simple site and with a Word Press setup as well. Here is the config:
Web server - CentOS 6.5, Apache 2.2.15
DB server - CentOS 6.5, MySQL 5.1.73
My question is, are the servers continuously authenticating with one another (and thus causing latency) on every single db call? If that is the case, does anyone know how to permanently authenticate between the two?
I might be way off on this assumption and authentication could have nothing to do with it. I am completely open to any and all ideas at this point. Thank you very much.
V/R,
Tony
To me it seems to be a network issue.
and obviously the db-server will need authentication every time there is a hit.
I'm currently doing a iOS application for school to connect to school mysql database.
It should be able to connect to it through the tools on xamarin studio.
I tried a lot of different coding to connect the database, but was unable to do so.
Is there any tutorial or example code to let me learn on how to do it ?
Thanks for any help!
Do not connect directly to a database from a mobile app. Doing this requires exposing your database server directly to the web, which is a horrible security risk. The better approach is to use a web services layer to broker the interaction between your client and your server.
http://docs.xamarin.com/guides/cross-platform/application_fundamentals/web_services/
While people are right and the best way to connect to a database is to use a web service there are some times you want to connect directly and ways to make the connection more secure (ip restrictions on the mysql server).
Here is a plugin with code examples on how to do it:
https://components.xamarin.com/view/mysql-plugin
Be sure to pay attention to the first forum question on errors and how to resolve. You need to include a reference to system.data, I18N, I18N.West in your project and also make a call to the constructor for I18N somewhere in your code.
new I18N.West.CP1250();