I want to build a mearn stack web application where I need to read data from an external fingerprint device and store the data into the MongoDB database for future operations.
It might be compared with the attendance system. Is there any NPM package to read the data from the fingerprint device?
Thanking you..
Related
How can we log exceptions and error for windows Phone8.0 app
I also want a mechanism to delete the logs after a period of time
Is there a method other than ISO to log error
thanks in advance
Write them to files in isolated storage. You can write code to iterate over the file system to clean them up. If this is just for testing use Windows Phone Power Tools to manually remove logs.
An alternative is to build a logging service and have your devices connect and write to it when they have a data connection.
I have a WP8 App where I want to store the crash logs if and when generated.
Is there any way of fetching the crash dump file from Windows Phone 8 programmatically?
As far as I know, you can't retrieve the crash dumps that are automatically sent to the DevCenter. However, what you can do is subscribing to the global unhandled exception event handler, store the exception contents in the isolated storage, then do whatever you need with it (like sending it to a remote server). That's what many applications do, and it's even automated by some libraries (such as Telerik).
You can achieve that by using a logging system as MetroLog. You'll be able to collect these crash logs if you configure GlobalCrashHandler that will ensure that a FATAL log entry is written if an unhandled exception occurs.
You can install it using NuGet
Install-Package MetroLog
Here's an quick example:
using MetroLog;
using MetroLog.Targets;
LogManagerFactory.DefaultConfiguration.AddTarget(LogLevel.Trace, LogLevel.Fatal, new FileStreamingTarget());
GlobalCrashHandler.Configure();
ILogger log = LogManagerFactory.DefaultLogManager.GetLogger<MainPage>();
log.Trace("This is a trace message.");
You can find a tutorial explaining how to add it on your project at http://talkitbr.com/2015/06/11/adicionando-logs-em-universal-apps. Also there is an explanation regarding retrieving these logs.
I have a legacy website created in PHP and MySQL. I wish to migrate this onto Google App Engine (Python).
Has anybody done this before? Any examples, tips, resources, tools you'd like to share?
I believe I will have to use "bulkloader" introduced in the GAE docs. Still haven't figured out how to get started.
I have two tasks:
Migrate from MySQL DB to local GAE App data store
Convert from MySQL -> CSV/XML -> Production data store
Help will be appreciated! :-)
--Sri
GAE now supports PHP (experimental) and CloudSQL which is very similar to MYSQL. I am currently writing a few testing apps. You can try to apply here.
To enable your PHP applications to be deployed to App Engine, visit https://gaeforphp.appspot.com/ to register your application to be whitelisted
Try from a regular gmail account.
how to load the mysql server in android emulator
i.e
Class.forName("com.mysql.jdbc.Driver")
i got the exception java.land.ClassNotFoundException in com.mysql.jdbc.Drive
please reply me.
This assumes MySQL is publicly available from internet, but it is never good idea .
Setup public WebService and connect to it from mobile application.
You won't be able to run MySQL server on an Android device.
What you're doing, however, is trying to load the MySQL client library. That isn't included as part of Android so you cannot load it. You'd need to include the relevant JARs in your project, if you really do want to connect to a remote MySQL database from an Android app.
If you do want to store and access data on your Android device, the awesome SQLite database is included by default, including all the APIs you need to create, upgrade and otherwise interact with SQLite databases.
When I did this I created PHP files for the database operations. I sent data in XML and received data in XML all using PHP scripts. I found this to be the easiest way for me...but you need to know PHP of course.
I've gotta use the inventory from quickbooks in my rails web app...it would be nice if I could get quickbooks to use mysql, as that way I could just use mysql between the app and quickbooks, which would make things easy.
Does anyone know how to get quickbooks to use mysql? Or will I be forced to have my app communicate directly with quickbooks, which I wanna avoid :P
There are a few ways of integrating with QuickBooks, but if it's a web application, your best bet is to use the QuickBooks Web Connector, or to use a commercial package for SQL access.
The Web Connector is the only Intuit-supported solution to integrating with QuickBooks from a web application. Basically, you build a SOAP server / Web Service which speaks a specific set of methods. The Web Connector then is installed on the machine running QuickBooks, and polls your web service asking "Hey, got anything for me to do?" Your web service can then respond with qbXML requests (examples of qbXML here: QuickBooks qbXML Examples) which tell the Web Connector "Add this customer: ..." or "Send me invoices which match: ..." or etc. etc. etc. The Web Connector then relays those requests to QuickBooks, QuickBooks processes them, and the response is relayed back to your web service. Your web service might then process the response somehow, and then send the next request over to the Web Connector. This can continue in a loop for as long as you like, continuing to send requests to QuickBooks and receiving the responses.
You might also look into AccessBooks and QODBC. Both are commercial wrappers around the QuickBooks qbXML SDK which allow direct SQL access to QuickBooks.
Here is some additional information on my QuickBooks Integration Wiki about how to integrate applications with QuickBooks.
You might also want to search around on Google. I know there were some QuickBooks Rails packages/gems out there somewhere, but last I looked it did not support the QuickBooks Web Connector. Instead, the Rails application had to be installed on the same machine as QuickBooks, and it communicated via COM.
Pretty sure you will have to interface with Quickbooks directly. The other problem is going to be that because Quickbooks is a client-side application you will need to have an app on the client that pushes the data to the server. It's definitely doable.
Alternatively, you could just use the export functions of Quickbooks to periodically export the inventory as CSV.
http://behindlogic.com provides a Rubygem (for sale) that will deal with all of the pains of QBXML for you, and an HTTP Connector for QuickBooks that allows you to send/receive messages with QuickBooks through HTTP, which opens the door for connecting from another computer. The gem has an adapter built to use the Connector as well, so you can very quickly get up and running with QuickBooks on Windows and your Rails app on Linux or on your development Mac.
EDIT: Unfortunately, the maintainer of Behind Logic and the gem mentioned above has passed away. I hate bringing this up, however it took me a while to figure out why the GitHub repo was inactive and the site had gone down.
We have been using the Web connector for a while now, and let me tell you its been pretty smooth so far. Though the Intuit Quickbooks SDK doesn't let you do wt exactly QB UI would let you. Problems occur especially when you want to enter group items to QB using the SDK. Use a webservice and let it build requests and process responses and push the required data to your database which can simply be anything from a SQL server to MySql/Oracle etc etc. Using this approach good amount of error handling can also be done.