Building a Xamarin Forms App using MySQL - mysql

I would like to build a mobile version of a household financial planner web app that I built with MVC, C#, MS SQL, and Entity Framework. What I've learned from my research is that I should communicate with the database for this project using API endpoints. I am familiar with setting up a WebAPI with MS SQL, but not MySQL. Also, the little work that I have done in that field was based on only retrieving information from the database. Not adding application users, roles, or any rows to tables. The web application that I'm trying to base this Xamarin application is at http://abacus.travismcdaniel.me
I have been unable to find a guide our tutorial that teaches what I need to know. In fact, most of the guides I've found are so outdated that I can't follow the steps because the things they say to do simply don't exist anymore.
So my question is this: It's there a n up-to-date guide anywhere that can walk me through the basics of setting up a MySQL database to use with the app that I'm building, then walk me through writing stored procedures, seeing up WebAPI endpoints for those stored procedures, and then incorporating all of that into a Xamarin Forms application?
If there isn't one single guide that does this, are there a few (still up-to-date) that I can work through to get the same information? Thank you in advance.

Related

How to use Flutter, MongoDB and Docker together in app development?

With a colleague of mine, we're building an app written in Dart with Flutter on Android Studio. We've arrived at the point where we need to start integrating a database to collect and send user filled data, and so we chose MongoDB which will be integrated into Docker so that our app is ready to function on multiple devices. Since we will have many users and each of them will be entering their own data, we have a lot of parameters to take into account so we're creating a JSON skeleton to map out the structure of what data goes where. The obstacle is we have no clue what the best way is to approach MongoDB-Docker integration with our Android Studio code, as it is our first time using MongoDB and Docker. Any good tips or resources that could put us on the right track ? Thank you
Hi your real question should be : what will you use in beetween those two ? You should (I guess) create an API to simplify and securise your user-DB interactions.
If you're not familiar with those principles a quick reasearch should help.
If you want to continue without any API, you should put many effort into having a VERY clean code as your app will have a lot of information inside its source code and proceed to create a documentation. Also you could use an ORM.

Communication with relational databases (MySQL) on NodeJs. Best practices

I am working on REST API, based on NodeJs.
My app get data from Mysql and return to clients. I try to organize my code wich works with Mysql.
Can I use repository + unit of work patterns?
Is "Patterns of Enterprise Application Architecture" of Martin Fowler still actual for NodeJs development? (can I read this book and use all of them, in depends of situations of course?).
Is this project a goot exemple of how I should do? https://github.com/ErickWendel/NodeJSWithTypescript
Or maybe exists another patterns for NodeJs development? Could you recomend good sources of information?

Couchbase share views among developers (import/export functionality)

At first, this question appeared to be too trivial to me to actually require a Stackoverflow post. However, after executing many Google searches for the information, I am at a lost when trying to figure this out about Couchbase.
In Couchbase (I am using the 2.2 Community version), how do I share views among developers? Is there some sort if import/export functionality available? If not, then how does Couchbase intend for developers to share the views that they are using without needing to do manual copying/pasting? It is obvious that the code that a development team would write for querying Couchbase will require accurate view names. Without having a way to send a developer a view file, to accurately setup a Couchbase DB, how can it even be possible to develop with Couchbase locally as a team?
I'm sorry if I sound a little desperate or harsh here, but if it isn't possible to share views among multiple developers, then I don't see how Couchbase can be a viable DB solution for a team of developers trying to share database configuration, similar to how a team using an SQL DB would share schema files to set up the DB.
Several ways you can approach this:
1) Create views programmatically as demonstrated here in java:
http://tugdualgrall.blogspot.com.es/2012/12/couchbase-101-create-views-mapreduce.html
or here in node.js:
http://www.tuicool.com/articles/RvYbQn
2) Store all your views in your version control system (This is the option I use). If you are developing locally then only you need your personal view code, once they are working and your tests are all passing then you can check them in.
I assume you'd then be developing on an testing environment so yes sadly here you'd have to update the views either by hand or by using option 1.
You could also take a look at perhaps using this tool but only for views: http://www.couchbase.com/communities/q-and-a/how-bulk-import-design-docs-and-views-couchbase-server
This functionality currently is not available in the admin UI.
There is a defect/enhancement open Ability to import/export views MB-8436. You can leave there your feedback and vote for it so it will be included in the next release.
In the meantime you can use Design Document REST API
Also there is a workaround blog

VB.Net Silverlight project and MySQL

I am an experienced web programmer that has sadly had little experience with Web Services and technologies like Silverlight - I've done a lot of PHP, Javascript, CSS and MySQL. I recently have been assigned to learn Silverlight and connect a new app to a MySQL database. After a full week of trying to get this working, I'm really hoping someone can answer these questions:
I have found the MySQL .NET Connector - am I correct that this is not compatible with Silverlight and I do not need it?
I understand I must use a Web Service for this. Can I use WCF or WCF RIA, or am I best using a more traditional web service method like REST or SOAP?
What's the best web service method for many quick queries (such as updating a search as the user types in the keywords)
Do I have to use technology like LINQ, Entity SQL, ADO.NET Framework, or a stored procedure? Is one of these the best way to do it or should I just skip them all and create a simple web service?
What's the best source to learn how to do specifically Silverlight VB.NET and MySQL and learn to do it the best way as explained above. Everything I've found (books and websites) seems to be in C#, not a Silverlight product, or just uses built in SQL Server support. Very frustrating!
For our web app, we need to be able to give the buyer not just access to our client side application via a browser but also the server side so they can OPTIONALLY host the entire product themselves. We're hoping to have one installer for them on their server (so they wouldn't have to set up php or mysql to host the product for example). If I use a VB.NET website and web service, will that deploy as just an exe or dll so the user won't have to install anything special? Is installing mysql on their servers unavoidable? Please advise.
Thank you!
Wow, lots of questions in a single question.
You can't use this from Silverlight.
WCF and WCF RIA are both technologies while SOAP and REST are protocols that are both supported by WCF. So yes.
Quick queries require good code and a well tuned database, the protocol won't be an issue.
LINQ, Entity SQL, and ADO.Net are all database access technologies and have nothing to do with web services. You'll need to build a web service and then connect it to a database using some database access technology. Which one you use depends on what backend you have.
C# is much more common. Most of the MSDN content has VB.Net as well. MySQL isn't an MS technology. You can use MySQL with Entity Framework and then expose that using WCF RIA Services.
If you use VB.Net as the server side technology they will need to be running Windows with IIS and have .NET installed. They will also have to install MySQL if they want to host it.

WCF: Best way to get data from Oracle 10g, MySQL and SQL Server 2008 databases?

I am designing a simple C# WCF service using ASP.NET 4.0 and hosted on IIS7, which will be used by .NET and Java web applications and desktop applications to extract data stored in various databases (both local and remote). I am starting to learn how to use VS2010 and WCF after working for a few years on VS2005 and asp.net web services, so am somewhat of a noob to WCF but know a bit about web services and Visual Studio.
Does anyone have opinions on what the best approach would be in terms of project/class/file setup in Visual Studio 2010 to do this, seeing as how I want to maximize code re-use and minimize development time yet still have the ability to connect to the different databases? I have a WCF Service Application project for the service, and have generated a WCF Client to use for testing using svcutil.exe, but now I'm at the point where I need to start writing database access layer code (or "model" code for MVC if that's the design route I need to go down).
Any help appreciated, thanks!
Each of the databases will have their set of nuisances while integration. The first thing you need to start with would be to design your model in more of OO (Object Oriented) fashion than relation DB way. Once such a model is created, you need to implement mapper layer/classes that would map data from a relational form to a OO format. Then for each DB you need to write some data access code. The amount of code you write for data access may well depend upon the tools\technologies you use. You could look into Entity Framework or NHibernate or other such ORMs to decrease the code required to access data. But keep in mind these ORM mappers may require their own set of tweaks to work well with MySQL, Oracle, SQL Server.