I'm looking for advice if it is possible to use server based database with the onsen/monaca framework? I know Monaca has its own backend database that can be utilized; however, I intend to not have my project's database cloud based.
Initially, I would have used mysql or mongodb if I was working with Php/javascript, but given I want to make hybrid phone app using onsen/monaca, I don't know if I can go the same route. I'm new to onsen, and I am still learning.
Onsen is simply a UI framework or in short, a very fancy collection of html, css, and JS. It is compatible with any database you use. You would need to utilize JS to connect to some server-side language like PHP or use Node.JS that would actually connect to your remote database. Hope that helps!
Local databases, on the other hand, have to do with the target device and phonegap than Onsen. The most common plugins support SQLite.
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I just started learning react. Now I want to build a small application where:
A user can Register/Log In (working with database)
The user can add items to a todo list
The todo list is stored in a database
Do I need other libraries to work with databases?
It's a small application.
Should I use Redux or rather something using MVC pattern like ASP.net?
I don't have any expierence with any of these. After lot of research I am still clueless on where to start with.
As you are a beginner. I would recommend you to use below libraries in both front-end and backend to start with your application
Front-end:
React - works as view layer
axios - to talk to backend database for all CRUD operations
Use localstorage or session storage to work between components. Because your application is very small so you can go with this approach or consider
using redux from now if you feel your application will grow bigger in
future
Back-end:
Keep your back end service as micro-services
As you are already working on react means you know something about javascript so I recommend you write your backend service in nodejs
If you want to use No SQL database then you can go with mongoDB database using mongoose in nodejs
If you prefer SQL database then I would recommend you to start with Postgres SQL database. Postgres SQL is popular these days than
any other SQL database
These are the required libraries for you to start.
I would recommend you to go for MERN stack i.e., MongoDB, Express JS, ReactJS and NodeJS
Basically I have a mobile app that I am building in Ionic (3 I believe). I have a website that I built a while back in C# using Visual Studio. The site is attached to a SQL Server database. This Ionic app I am creating is to go along with said website.
My question is how do I connect my app to the same database. I'm very new to Ionic and I cannot seem to find any answers online. I have found some vague SQLite stuff but that is about it.
Not necessarily looking for specific answers in code (although I wouldn't say no). If someone could even breakdown the steps I'd need to take then I can go and research it myself.
Thanks in advance
You can connect to mysql database with your ionic app using Webservice in c#.There is no need of SQLite for connecting your app to sql database.It can be used as local storage instead.Ionic use json data to access.So the data you retrieve from Webservice must be Json.
It depends
Do you wish to directly access SQL database from your ionic app or you want to have access to the database via api.
1. Directly connect to SQL database from ionic application using Cordova plugin.
Follow this link for more info -1
Actually I've to connect my Angular project to a database to access some data. But I don't know how.
Should I write a REST API to do it? If yes, how can I connect my REST API to my project?
Which steps should I follow?
Thanks
The angular application will be your "front" application. To store and fetch data
from a database you'll need a "back" application that will provide URLS for your angular App to call.
A simple back can be done using Laravel and OCI 8 connector in order to query ORACLE database. The backend would be in PHP which is a common solution but might not fit your needs.
Set up your laravel project : https://laravel.com/docs/5.4
Install OCI8 module to connect to your oracle database : https://github.com/yajra/laravel-oci8
Then follow laravel's guidelines to set up URLs that will be callable by your front application in Angular4.
I am creating my first mobile app using Phonegap and I am not sure what database to use with it. I have read a few articles and am finding it hard to decide on which is best to use. Two of the ones mentioned most seem to be MongoDB or SQLite
Because PhoneGap needs Nodejs, I thought that MongoDB would be a good option but is that too robust? I am familar with Mongo but don't want to choose it just because it is convenient, I would prefer to use what is best.
The app will hopefully store information both locally and on the server. Will probably be information like you would store for a messaging app - user info, contacts, messages etc.
Anyone know which would be best to use? - or if another would suit my needs more?
The phonegap is a framework that allows you to create mobile applications using API's multi-platform web. The choice of the database in my view
should not be given by the framework, but for what kind of application you are doing.
I see three ways to store data from your mobile application.
1: Local Storage (http://www.w3schools.com/html/html5_webstorage.asp)
2: SQLite (https://github.com/brodysoft/Cordova-SQLitePlugin)
3: Database on server (can be anyone.)
The choice will depend on what you want from your application. If it is a simple application that will be stored few data, use the local storage of html5 that stores documents. If your application is already a bit bigger and more complex, you can use SQLite implemented in the browser using HTML5 which is supported by most current mobiles browser. The advantage here is that access to the base is done without the need to build a server. In the third case your application would be the type client server, in which case you should use the database on the server. The choice of database can be what you feel is appropriate.
I suggest you go with IndexedDB if you want to store a lot of data in the client or LocalStorage which is able to store 5MB worth JSON data.
This is just the front end but for the back-end there are so many to choose from and if you plan to write the back-end with Node then it will be wise to use MongoDB.
I would suggest using the Cordova-SQLitePlugin as it offers a native interface to sqlite, avoiding quota restrictions associated with WebSQL on mobile devices. The plugin is supported on Android, iOS and Windows Phone 8 platforms.
If you want to keep a local and remote database in sync, you may consider using this in conjunction with PouchDB
PhoneGap can use LocalStorage, SessionStorage, or SQLite databases. You can also use PhoneGap to connect to the devices native classes via a plugin, and pass the native class data, that it will then store on the device. check this link to find more details
What database does PhoneGap use and what is the size limit?
I am developing an mobile application which can be run on mobile devices (with OS like Android, iOS, WP7...). This application will get data from online database then store them to local database in device and I can do CRUD with data. There are three ideas:
I'll create a webservice to handle with database on host and use some cross-platform framework to building an app then connect to webservice in order to get and put data to server. Issues:
Which technology should I use to create webservice? (RESTful/SOAP...?)
Which type of return data for easy to handle? (XML/JSON...?)
How to sync between local database and database on host?
I'll make an application for loading an external URL and build a website (with all of features that I need to work with database). Issues:
iOS, Android, WP7... accept for loading external URL in applications?
How to sync data like my first idea?
Should I use single page application technology?
I'll make an application using cross-platform framework and it will work with local database. I just handle syncing between local database and host database. Issue: which is the best database and best framework to do this?
Thank you
How to sync between local database and database on host?
For synchronization, you can take a look at the open source project, OpenMobster's Sync service. You can do all types of sync operations
two-way
one-way client
one-way device
bootup.
Besides that, all modifications are automatically tracked and synced with the Cloud. You can have your app offline when network connection is down. It will track any changes and automatically in the background synchronize it with the cloud when the connection returns. Also, when new data is created in the Cloud, it is automatically synchronized with the local database using Push notifications.
Currently only native development is supported on Android and iOS. However, the next release which is 2.2-M8 (end of March) will support end-to-end integration with PhoneGap on Android and 2.2-M9 (end of April) will add iOS.
Support for PhoneGap will give you the flexibility to build the app using web technologies like HTML5, and JavaScript along with Sync for your local data using OpenMobster.
If you want to go pure native, then you still can use the Sync service and synchronize your local database with your remote database.
Let me know if you have more questions about the framework
Here is a link to the open source project: http://openmobster.googlecode.com
Good Luck!!!
Some suggestions:
If you're planning that your mobile application exchanges data with a server, i strongly suggest you to use RESTful Services. The XML overload associated with SOAP services might get your phone and your network into trouble
The return data can be either JSON or XML. For example, in Blackberry applications i prefer XML because the support included in the SDK.
There are three kinds of mobile applications: Web applications (build with HTML/Javascript and accessed throw a Browser), Native applications (installed in the device and coded in Java/Objective-C or another language) and Hybrid applications (installed in the device but coded in HTML/Javascript and can access some features of the OS). Your URL-Loading type sounds like an Hybrid approach (not quite sure about that), so you can use PhoneGap to build that type of applications.
Hybrid and Web applications uses the capabilities of the phone browser to manage HTML/JavaScript. Now the devices come with very powefull WebKIt-based Browsers, so the single page pattern would work with no problem. Although, it's kind of a wear approach to mobile application design.
I don't see the need of a local database in your app, you can simply handle all the data in the server and access it through RESTful Services on the phone.
I am developing an mobile application which can be run on mobile
devices (with OS like Android, iOS, WP7...). This application will get
data from online database then store them to local database in device
and I can do CRUD with data
Nice!!!
Which technology should I use to create webservice? (RESTful/SOAP...?)
I Will go For REST services.
REST has advantages when:
You have a set of resources that you want to manipulate.
You want to support navigation between resources.
You need scalability.
SOAP has advantages when:
You want to publish a web service description (using WSDL).
WSDL 2 can describe RESTful web service as well. WADL is an alternative to WSDL for RESTful web services.
You want to use security etc. that relies on the use of SOAP headers or some similar mechanism in which data is added and removed from a request.
You want better tooling support.
You want tested platform interoperability.
Which type of return data for easy to handle? (XML/JSON...?)
I personally go for XML
Its not a criteria of which is easy to handle.Its about performance in Mobile applications.
JSON is generally smaller than a XML document and there for faster to work with.JSON can be parsed more efficiently because it can be parsed as JavaScript, which the built-in eval() function will do for you.
How to sync between local database and database on host?
Create a service which contains a timer and runs in background.Call the REST service at intervals to get the latest values. But Since this is a polling kind of thing,then it is not efficient and has less performance. Other Approach will be use of PUSH notifications.As soon as there is any change at the server side, send a push notification to the client(mobile) and hence perform the local database operations.
iOS, Android, WP7... accept for loading external URL in applications?
I didn't understand this point.What you want actually?
Should I use single page application technology?
Single page technology is very good.But it will depend on your business.If it is possible then use it.Else create different HTML pages.
I'll make an application using cross-platform framework and it will work with local database. I just handle syncing between local database and host database. Issue: which is the best database and best framework to do this?
Choosing of the database will depend upon choosing of the cross platform mobile framework.Phonegap is exactly what you need. And the database will be sqlite. Phonegap provide API's for storage,so you can easily access the database of the different mobile platform.