Postgresql with react usage guide - reactjs

I'm new at programming. I want to know how to use my database with react? I can create db and tables with PostgreSql but how to connect from react project? Do we have any guide/tutorial available? I found node-postgres. Is that useful or should I find another thing?

Frontend and Backend are the two most popular terms used in web development. These terms are very crucial for web development but are quite different from each other. Each side needs to communicate and operate effectively with the other as a single unit to improve the website’s functionality.
BackEnd
Backend is server-side of the website. It stores and arranges data, and also makes sure everything on the client-side of the website works fine. It is the part of the website that you cannot see and interact with. It is the portion of software that does not come in direct contact with the users. The parts and characteristics developed by backend designers are indirectly accessed by users through a front-end application. Activities, like writing APIs, creating libraries, and working with system components without user interfaces or even systems of scientific programming, are also included in the backend.
FrontEnd
The part of a website that the user interacts with directly is termed as the front end. It is also referred to as the ‘client-side’ of the application. It includes everything that users experience directly: text colors and styles, images, graphs and tables, buttons, colors, and navigation menu. HTML, CSS, and Javascript are the languages used for Front End development. The structure, design, behavior, and content of everything seen on browser screen when websites, web applications, or mobile apps are opened up, is implemented by front End developers. Responsiveness and performance are two main objectives of the FrontEnd. The developer must ensure that the site is responsive i.e. it appears correctly on devices of all sizes no part of the website should behave abnormally irrespective of the size of the screen.
What shall you do
So you've learned to handle Fontend with react but you still need to handle backend but if you didn't know a language to handle it, don't worry.
You can use something like firebase and here is its link : Link
And also you can learn to integrate these 2 sides with this document: Link
Good luck

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How to convert a ReactJS web application into a mobile friendly application

I am currently working on a complex web application written mainly in ReactJS with Redux which uses Node and Docker containers for deployment.
As the app is currently mainly used by laptop users, our next goal is to make the application mobile friendly (mainly iOS) and allow the user to utilize the phone's camera to upload photos straight to the app.
It's my first time trying to make a web application mobile-friendly so I am wondering what's the best approach for doing so. I've considered using CSS media queries to adjust the layout based on the screen size but we've come across a few drawbacks such as pop-ups or modals not looking as expected.
Should we go down the route of rewriting the code in React Native (not ideal approach), or are there any other better suited solutions?
Thanks
There are a number of options, most of which would have been better if implemented at the beginning of the project. Mobile-first UI development is by far the easiest way to deal with different device sizes, as you have already guessed with elements such as reducing your modals.
I would absolutely recommend using a UI library that comes with a responsive grid solution if you're not already using one. Available ones include, but are not limited to, Material-UI, Bootstrap (using a react implementation such as React Bootstrap) and Ant Design.
As to whether you should do a rewrite, that is up to you to compare the costs and benefits. What I would suggest is, instead of planning to go for something specific such as iOS, plan to support device sizes instead. Any decent UI framework will work in terms of common breakpoints that abstract you from thinking in terms of "iPhone X in landscape" to something like "Extra small", "Small", "Medium", "Large" and so forth.

What tools should I use to develop a device neutral web application?

I am a computer science student in my senior year at my local university. I recently was hired on as an intern to create a mobile web application. The mobile web application is very simple; it needs to interface with a data base to both give a full data base view for an administrator and for end users to fill out a simple survey. I have never done anything in web development before, so I did a little research and the tools that kept coming up where html, css, java script, and php. However, I also ran into other tools with different applications, like AJAX with Jquery, HTML5, and micrsofts asp.net. I have a basic understanding of html and css, but I haven't committed to a development platform yet. I wanted some advice on which one to choose, based on the following criteria:
1) I want to develop a website that is device neutral. So I want it to work well on both desktops and mobile devices.
2) No one knows the future, but I would like to use the development platform that is likely to become or remain the standard in the future.
3) It needs to be available as a part of a standard server platform for a typical web host
4) It needs to be able to dynamically generate web content and interface with an SQL data base.
I would really appreciate some advice, input, ect. I don't know if I will pursue a career in web development, but sense I already have to learn at least one development platform, I figure I might as well learn the right one.
Thank you for any advice and input.
If you don't have a web developer background and don't want to spend time learning it thoroughly, I would recommend using Google's GWT. It provides you with all the tools to implement your application purely in Java, without caring too much about the front end. As the whole thing's in Java, all the SQL handling can be done there, with the results sent to the front end.
Then, you can add built-in elements (flexible tables, panels, buttons, images, etc.) to the app, again, using Java only. You can get some CSS templates from the web and apply the styles without any HTML knowledge at all.
Once ready, you can compile the whole thing into JavaScript, with several permutations of the code compatible with most of the modern browsers. Then all you have to do is to deploy these generated JavaScript and HTML files onto your HTTP server and enjoy :) You can also touch the HTML directly if you have something that can't be applied through GWT but in the case of a simple webapp this won't be the case...

How to populate a content driven hybrid mobile app?

I'm trying to develop a hybrid app which will deliver a range of simple teaching material to the user. I am planning on using Telerik App Builder in conjunction with Cordoba 3 to create the app. What I cannot decide is how best to package the actual content into the application. I'd like to achieve a separation of the content from the code, and just combine the two when building the delivery packages. (The content is being prepared by a subject matter expert.)
Is there a way I can use Cordova or Telerik AppBuilder to pre-populate a SQLite database as part of the app install process? Or am going about this in completely the wrong way? I have been researching this in the Telerik documentation but without success so far. If someone could point me towards a suitable example or even the correct places in the Telerik or Cordova docs I'd be very grateful!
I recently ran a techie webinar on the topic. The main idea is that you need a centralized system to host this content and this system needs to expose some kind of a service layer that will feed content to your app. To me this seems like a very growing market opportunity, but feels kinda the same as the web 1.0 days where all of us were trying to figure out how to feed cotnent to websites and everybody was building their own CMS in a way.
Telerik Backend Services provides an editing interface, so it can fit some requirements, but it's not a publishing system, plus you may not want to pay developer licenses to your back-end users or provide them with access. The premise of the webinar I am talking about was that we discussed how to integrate with another telerik product - Sitefinity to do this job for you instead. The first 20-25 minutes are an overview of the platfrom, so if you have seen it already, you can certainly jump to ~;0:25 to see the rest
http://www.sitefinity.com/campaigns/webinars/build-content-driven-mobile-apps
Now certainly it doesn't have to be Sitefinity or CMS for that matter, Sitefinity provides a bunch of App Builder related features that are handy, but you technically have a few options:
- Build your own applicaiton and back-end.
- Use any type of CMS or platform that will give your SMEs the back-end interface to publish and the service layer to expose to the app. In the webinar I also go through some neat tricks such as using push notifications upon publishing.
This way you get a clear separation of content and code - you can even get a separation of content structure and code, which is an idea i talk about in greater detail.
I hope this helps!
Svetla

Suggested Language for Web-Based Intranet/Database

Hate to ask a question this borderline generic, but I'm looking to build a web based program that combines our company intranet with a forms-based database. I would be looking at Oracle's database product except that this definitely needs to be web based.
I'm currently investigating using Alfresco (java-based) as a repository, and some PHP engine for the front end. Does anyone know of PHP issues when the task at hand becomes too involved (I'm an amateur, mind you), compared to Python, for example? I would eventually like to be able to scale this project upward, even if I hired someone else to do it.
Pre-built modules would definitely help with the workload. I know Drupal has many, but I've never perused compilations of modules for other languages. I think the availability of modules may be the most important factor!
Alfresco is great for managing content (e.g. documents or static html pages) in a collaborative manner. It has excellent tie-ins to the desktop with WebDav integration. Drupal is better for more dynamic web content and more flexible web pages. Not quite sure what you mean by forms-based content.
With Drupal's CCK module (now mostly built into Drupal 7) and Views - you can create forms (as content types) for people to fill out and then present the results as either lists, tables, grids of nodes or almost any other filterable, list presentation you can think of using Views.
Every page in Drupal is really just a form that collects content to present in a particular way (e.g. the standard page is a Title field and a Body field), but a user profile is just another type of content form with a different set of fields.
Alfresco is currently getting better at Web Content Management (WCM). They recently rewrote the WCM feature set completely, and provide a Quick Start sample to, well, get you started quickly. Alfresco would provide you with a collaborative editing platform, with workflows, ACLs and extensive remoting capabilities (huge, extensible REST API, WebDAV, CMIS). You'll have configurable forms based content creation, plus a platform for your intranet.
The front end for Alfresco WCM would be than written using CMIS to retrieve content from Alfresco, APIs are available for Java, Python and PHP.

Web and mobile site creation - just starting on this project

I need to build both a website and a mobile site (starting from scratch). The website will include a registration/login, user upload, and sharing feature. I would like to have all of these features available in the mobile site as well. Any recommendations on the best starting approach would be appreciated. For example, should I create the website from start to finish before even starting to think about the mobile site.
Thanks
If you design your server side code correctly, you should be able to use those components no matter where the client is. You would just have to write a thin wrapper for each different interaction type, e.g. xml vs json.
Its hard to say more without knowing exactly what you are doing, and how many people you have working on this? You can finish the desktop version before you start the mobile, but you don't have to. Depending on team size/skill you could develop both concurrently...

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