I estimate possibility to write Report Desktop Application using React NodeGUI. There is some questions what I need to find answer before starting to develop by NodeGUI. Could you help me to figure out.
What way is to load program extension dynamicaly in React NodeGUI. For example: If I want to change business logic and visualization of my program without compile code. Is it possible?
What way is to load program extension dynamicaly in React NodeGUI. For example: If I want to change business logic and visualization of program adding some program module code of other developers. How way is it possible to do?
What way is to work with XML files in React NodeGui?
Is there possibility to run other program code written by C/C++ or other languages? What restriction of running non-native JS modules?
What way is to connect to SQL or NoSQL DB (PostgreSQL, Oracle, Mongo and etc)?
What are reasons yet to write or not write Desktop Applications by React NodeGUI?
React NodeGui is just another npm module that you would install in a nodejs program. It is a pure javascript library. It depends on NodeGui which is another regular npm module. NodeGui contains C++ code which acts as a nodejs addon. But for all purposes think of nodegui and react nodegui as regular npm modules. An app built with these libraries is a regular nodejs app.
What way is to load program extension dynamicaly in React NodeGUI. For example: If I want to change business logic and visualization of my program without compile code. Is it possible?
All business logic is written in javascript so any change in those would follow the same flow of how you would in a nodejs app.
What way is to load program extension dynamicaly in React NodeGUI. For example: If I want to change business logic and visualization of program adding some program module code of other developers. How way is it possible to do?
Yes you can use all npm modules available in npm that works with nodejs.
What way is to work with XML files in React NodeGui?
You can find a lot of npm modules you can use to parse and work with xml files in the npm registry.
Is there possibility to run other program code written by C/C++ or other languages? What restriction of running non-native JS modules?
Yes it is possible to run non js code by building them as NodeJs addons.
What way is to connect to SQL or NoSQL DB (PostgreSQL, Oracle, Mongo and etc)?
You have a lot of modules available in the npm registry for these which work with NodeJs.
What are reasons yet to write or not write Desktop Applications by React NodeGUI?
Reasons to use:
- NodeGui apps are native apps so they get all the benefits of native apps. They are snappy, they are accessible and run with low memory and cpu usage.
Reasons not to use:
Its under development so is only recommended for hobby projects as of Dec 2019.
PS: I am the author of the library
Related
I would like to build an app using Angular + Electron. My app should be able to run both on desktop and browser platforms. I'm considering to use angular-electron starter kit (but I'm open to other possibilities).
What concerns my is the way I read and write data. The data must be stored in a MySQL database. Ideally I would like to:
make the app call an api when NOT running on Electron (browser mode)
make the app query directly the mysql database when running on Electron (desktop mode)
I know I could check for window && window.process && window.process.type to let the app understand wheter running on Electron or not, however I'm a bit concerned about how to handle this. Also because I probably need to import node packages like mysqljs but ONLY in the desktop mode.
You can simply pass in different environment files in Angular during build this allow you to control the environment variables so that you can tell that it is a web app build or an electron app build.
https://angular.io/guide/build
EXTRA
But if you are importing binary packages this is where it gets tricky. I dont think there is a clean way for you to do conditional imports. I did not manage to find a way to do it cleanly and sort of maintained another repository for all my services that needs to import binary files.
To import the binary files you will also need to edit some webpack settings to tell angular to not compile/include the binary files during the build process so that you can use you librarys like mysqljs that require binary files. There is also some settings on the electron end to make binary files compatible for different platforms ie Windows, Mac , Linux. Basically it is really a pain to do it.
Link to how to edit webpack settings for angular 7+
https://github.com/manfredsteyer/ngx-build-plus
I will totally suggest you not to do it unless you really have a very good reason that you need to use these libraries.
EDIT 10/1/19
Okay I was referring to the MySqlJs but it seems like it does not have native modules modules. Native/binary modules basically means javascript code that relies on c++ compiled binaries(Or any native language like rust...).
For my case I was using the grpc modules which has a native dependency. Had to switch to grpc-web in the end.
I will add some footnotes here if you ever need them
https://electronjs.org/docs/tutorial/using-native-node-modules
Node.js / npm - anyway to tell if a package is pure JS or not?
I am working on node js application and it is now ready to use. I want to make exe of this application so that it can be used for commercial usage.
Up to now I have used enclose module using which I have compiled the code of application but I have found some issues in that (app got crash on idle condition). App is running good without enclose or compiled code.
I have searched on google and found some alternate modules like JXcore, Node webkit and Electron etc. but JX core giving error same as in SO question.
In node web-kit, it's functionality is not looking suitable as we need its executable and some dll's along with our code, which makes our package bulky.
I have also tried jxcore. The main problem with the exe's and with modules that we use is their ability to work with native modules, in my case the Kinect.node module. This module cannot be compiled. We need a workaround to package only this along with our .exe file. Enclose provides this workaround in its inbuilt functionality.
Also looking a response from EncloseJS, which is actually run by just one person who gives further instructions upon purchase. A purchase is needed for commercial usage.
In case of Electron, It is supporting only Electron-based application source code. So If I choose this then I have to modify my application code.
So can any one suggest me what can I do to make exe file from node js code there?
Thank you!
I had the same issue before, the node js application close when running in background. now i am using process manager2 (pm2), it is working fine and if the application is crash due to any other reason it is automatically started again.
I have gotten my answer:
First, reason was DiskDB database, it was not compatible with the node webkit so that is why I was getting error of native modules.
Now I am using sqlite3 module for local database. It is better than DiskDB.
Second, One reason was free version of enclose, Paid version of Enclose JS module ignores the timeout issue which I was getting.
This way I have resolved my question.
My understanding is that AngularJS including Angular2 is a client-side framework, while Node.JS is a server side platform. They should not cross. But all Angular2 tutorials I found use Node/NPM. Why is that?
Because npm is a package manager for packages written in JavaScript, and JavaScript can run both on client and server side. In other words, frontend and backend applications can both benefit from packages. Many development tools also use node as an underlying process (e.g. Jest-cli).
I would suggest you to use angular2 only on client side. The performance of angular2 really shines when it comes to handling view containers over regular server side codes. On the NodeJS side, I would recommend using es6 features. Which has revolutionised how you can not only code, but also performance.
The reason you see most tutorials using npm is because they are either using TypeScript or a build tool that uses Node to convert to ES5 or build your project.
However you can still build Angular2 apps using the sfx version (self-executing bundle) of Angular2 and using ES5 syntaxes without having to use node or npm. Here is a blog post that shows how to do that
http://blog.thoughtram.io/angular/2015/05/09/writing-angular-2-code-in-es5.html
Angular2 is a front-end framework but a lot of tooling that assists in building Angular2 applications are available via NPM.
If you want a package manager that's geared specifically to front-end development I suggest JSPM. It supports front-end modules of various formats (ie AMD, CommonJS, UMD), handles transpiling out of the box, and can be used as a build tool to concatenate/minify your application code.
You'll still need NPM for many other utilities and you'll need a back-end server for testing (I recommend live-server).
As far as the back-end is concerned. One of the Angular2 dev teams is working on a Node/Express extension that supports isomorphic rendering of JS. In short, it pre-renders the view on the server so the user can interact with it in the browser while the app loads in the background. The start time of launching a fully-featured SPA will still be kind of slow (relatively) but perceived speed will be instantaneous.
So I started coding a chess engine in typescript as a side project. I initially intended it to be a CLI like most other chess engines that interact through stdin and stdout. This so I could plug it to a GUI like Arena and test it against other engines. For that I decided to do it as a node project.
I set it across several files with 1 being the UCI (universal chess interface) implementation and the remaining ones chess logic and AI logic. After banging my head a few times trying to understand modules in typescript I finally got it to work.
Now I decided it would be interesting to write a simple GUI myself as a webpage with html+typescript+jquery. Now, I would like to use all the logic modules I wrote but I'm finding it impossible. From what I understand you can't use CommonJS in browsers so the only way I could get it to work was using instead internal modules for which I need to modify the .ts files to wrap the code in module X{ } blocks and recompile them just for the GUI every time I change something. This situation seems far from ideal and I was wondering if there is a way around it...
Use http://browserify.org/ to add CommonJS-like support on the front-end.
But also read this (slightly outdated) question and answer: How should I go about writing a node.js web application with both server and client side code?
Use external modules for both the server and the browser.
When compiling for the browser, use the switch to specify the AMD module pattern:
tsc --module amd app.ts
And use RequireJS to load modules for you.
<script src="require.js" data-main="app.js"></script>
You will need to compile for the different targets, but the source code in TypeScript can be identical.
I created a demo project to share code between the client and the server : https://github.com/basarat/demo-fullstack/blob/master/src/Gruntfile.js
It compiles the common files for both amd/commonjs and server files only as commonjs with the client only files as only amd. It uses grunt-ts to manage this : https://github.com/grunt-ts/grunt-ts
I am going to create my first angular application. I have read lots of angular tutorial and many of them mentioned node.js.I am really got confused here.
Do we really need to install node.js and other dependencies to run angular application ?
Can't I just add respective angular libraries in my eclipse and create Angular application?
What are advantages of using node.js?
Also it is necessary to add all angular code is under App folder?
Regards,
Dip
As it is said on note.js website
Node.js is a platform built on Chrome's JavaScript runtime for easily building fast, scalable network applications. Node.js uses an event-driven, non-blocking I/O model that makes it lightweight and efficient, perfect for data-intensive real-time applications that run across distributed devices.
So it depends if you want to have server logic (services) or not. If you are creating just the UI of the app you don't need note.js. Also Angular is NOT dependable on note.js