For this moment I have working Vue application with firebase realtime database (communication via HTTP requests), but I need to run this application on device w/o internet access. My idea is to create node/flask server on localhost and implement request handling from Vue app and now the question is:
Is it possible to install some no-sql databases that will work similar to firebase, so I will able to export JSON files from my existing realtime database and put it on localhost node server? Most important to me is getting access via http requests to specific branchces of json files.
For now i only created node server and looking for best solution. Best thing for me would be just replacing firebase url with some database localhost url and all logic will work the same.
firebaser here
There is currently no option to run a self-hosted production-ready version of the Firebase Realtime Database.
The closest equivalent (as user 9072997 commented) is the Firebase Emulator Suite, which you can run locally and supports the Realtime Database, but is explicitly intended for:
Local development with Local Emulator Suite can be a good fit for your prototyping, development and continuous integration workflows.
Related
I am relatively new to mobile development and would like to know further information about this specific topic.
I am working on a React Native based mobile application and am now getting around to implementing the back-end for this application. I will need to send data back and forth from the client (the mobile application) to the server (a cloud server). I am aware I can accomplish this with technologies such as a MongoDB database or a Firebase database, however, I would like to try to implement this on a personal cloud server.
How would I go about establishing a connection to a server in node.js so that I may send and receive data?
Thus far, I have looked the node library Express.js, but I am unsure if this is of any relevance as to what I am looking for in terms of a solution to what I am trying to achieve.
First of all, I think you need to have a backend project for making your backend you choose Nodejs
Node JS is a fast JavaScript runtime environment that we use to build server-side applications, but it does not know how to perform serving files, handling requests, and handling HTTP methods, so this is where express js comes in.
Express JS is a Node.js framework designed to build API's web applications cross-platform mobile apps quickly and make node js easy.
Why Express JS?
Express was created to make APIs and web applications with ease
It saves a lot of coding time almost by half and still makes web and
mobile applications are efficient.
The reason behind creating an express framework for node js is:
Time-efficient
Fast
Economical
Easy to learn
Asynchronous
After completing your backend project with either postgres or mongodb database connection and node js you can deploy it to your cloud server and access it from the apis form the front end mobile or web applications.
Another thing I want to mention you can also create some web pages using node handlebars as well.
I have two questions a bit theoretical. I searched in the Internet but I didn't get a clear answer.
My first question:
I would like to develop an app in MEAN stack (Mongo, Angular8, NodeJS server), but I don't want to have a central server connected with the database somewhere and all the clients just connect to it remotely. I want to deploy the whole app (mongo database, server back-end, angular front-end) locally in a standalone pc. Yes, the user would have to activate both database and server services and yes, he would have to use the app through the browser at the localhost address, but I don't want him to be able to see the code. Is it possible or do you have in mind any trick to achieve that?
My second question:
Can I directly link mongo database with the Angular8 code without interfere the NodeJS API's?
I know that my questions are a bit generic, but I am not looking for huge answers, rather if my questions are possible and some tips on how to move on.
For the first question: Your user will always be able to see the compiled code (through the developer console for example) but not the source code of the angular application.
Just trying to spec out a new system. We want to build a mobile app with offline storage using react-native.
We were originally going to use node and create a web api layer that worked with a MongoDB. However after looking into offline storage we found PouchDB. But pouch has to use CouchDB. So we are considering using CouchDb and having a flat db layer with all our business and data logic modelled in the apps.
However there may be some server side things that we need to do (for example pulling other records from somewhere else in the organisation).
So can we deploy a web api using node alongside CouchDb? How would this work? Totally separate or in the same node process?
So can we deploy a web api using node alongside CouchDb?
Yes, of course.
How would this work?
I'm not sure about what solution suites your needs, but one solution is to develop a web app with this tech-stack: NodeJS/Express, CouchDB/PouchDB and ReactJS/MobX. One important point about CouchDB is that, you shouldn't think about it like any other database . Basically, you don't need any server-side code to talk to CouchDB, it can all be done on the client-side with PouchDB. The live sync of PouchDB is extremely convenient at handling offline/online storage. If you're considering ReactJS, take a look at MobX.
I am creating a nodejs app and as per clients suggestion trying to implement it in AmpersandJs. I have installed framework and created application by following documentation &js installation.
The app is running with some sample data
I found that the sample data is coming from ampersand-app module from an index.js file.
But I want to do database connectivity with it -- How should I achieve this? I have Googled but not found any good link for it.
Did &js is good choice to develop application or it is for an specific type of projects?
But I want to do database connectivity with it -- How should I achieve this?
Ampersand.js is running in the browser. If you want to access data stored in a database you have two options:
Request data from a database running on a server somewhere accessible over the network. In this case you want to use the url property of models/collections
Use an in-browser database (maybe you want to have look at pouchdb as API)
Did &js is good choice to develop applications?
Definitely yes!
I would like to know, how to get data from MySQL database to my application without using any REST API or PHP code. I was looking over the internet for the solution for this problem. But they say, you can use php code as REST API and then, can communicate with database. For this purpose, i will need a host and domain. I don't want to use that. Is there any other way to communicate with mysql database. Can i use mysql module of node js in titanium application.
There is no way to have direct connection between your mobile client and MySQL database. To retrieve data from MySQL you need to build application which will receive request from your app, retrieve data from MySQL, process and return it as a response.
If you don't want to build mobile and server application at the same time you can try using Appcelerator Cloud service, which plays really nicely with Titanium SDK and allows you to persist users data.
There are two answers to this problem, depending on your situation:
If Your Data Is Specific to One Device...
If you want to store data locally on one device, and that one device is the only one that will ever use it, then you want to use a SQLite database. This is very commonly used in mobile apps, and is very well documented. If you already have a MySQL database with the schema you want to use, then you could really easily convert it to a SQLite db file.
If Your Data Is Centralized...
If you need to store data remotely, in one central place, that the mobile app can access, then you need to use a remote database.
MySQL is one such option. You say that hosting PHP (which is itself run through something like Apache or IIS) is not something you want to do. But if you can host MySQL somewhere, or run it on a machine that your mobile app can access, then you can also easily host PHP and Apache.
If you don't want to spend money on a domain, then use one of the free dynamic DNS providers, which map a domain name (such as foo.hopto.org) to an IP address. If you don't want to pay for a server, then use your home computer, and keep it on whenever the mobile app needs to access it. There's easy, well documented ways around any of the issues you're having.
Alternatively, as #daniula pointed out, use Appcelerator Cloud Services. Then you can interact with simple objects, and they'll be stored for you in a central server. You can control who can access what data, and more. (Full disclosure -- I work for Appcelerator.)