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I am bulding a learning portal for a client and the client has asked for a feature where the user can record and upload sound directly from the browser (or browser plugin) to a custom made forum on the portal. The client envision having a button like [start recording] on the site. I am probably ending up with recommending against this feature but I would like to hear if any of you have done something similar and what you used.
This specific application is built using dotnet core 2.0 and Angular 5 in the frontend.
Using WebRTC could be an option if you can run your site under an SSL cert.
You may want to take a look to this example here.
Here you have another example using the device camera.
You can store the response on a Blob and send it to your server.
It is an initial aproach but I think it could help you take a decision.
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I'm implementing an Android app that collects data throughout the day. When the user returns home where there is internet connection, then the app will push data to backend.
I have been looking into Firebase for this. It has offline capabilities that would save data into disk in case there is temporary network interruptions.
My question is whether the offline feature fits with my scenario? Is the feature designed for short term interruptions, or works with any kind of interruptions?
It works with any kind of interruptions. So if you don't have an internet connection during the day, when you come back home in the evening, all the changes made when you were offline will be pushed to Firebase database.
To achieve this you need to use this line of code:
FirebaseDatabase.getInstance().setPersistenceEnabled(true);
Hope it helps.
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How do I do my business logic on server-side on firebase?
Will the web app still have the benefits of progressive web app if I do this?
Reason to do this: Anybody can run Javascript code on your website if the person knows how to use the developer tools available in modern browsers.
Is firebase Queue (NodeJS on AWS) the way? I am a noob to all this.
You need to write more of your business logic on font-side than traditional way. To make it safe, you need to write access rules carefully on firebase console.
And it's not enough, you also need a server-side, nodejs is a good choice, there are many useful library, such as firebase, firebase-queue, firebase-admin. You can deploy these servers on the google cloud with docker.
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I am going to be building an auction website using ASP.NET MVC with an MS SQL Server database backend, and I've been looking at SignalR as part of it. What I envision is using SignalR to provide real-time updates of auctions as bidding occurs or some other action happens on each auction.
Part of this is that I want to display multiple auctions on a page and have each auction updating in the client's web browser. Is this something that SignalR would be the right technology for, or is there something else I should consider?
Well, SignalR is what you are looking for. Create a group for each auction and broadcast to all users in that group
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I wanted to crate an mobile app (using Flex) that let user upload some user generated content (eg. Text, Picture) to my website and also able to display/view it on the website as well.
I don’t much on the back end (web programming, website database, cloud).
What is the best way to do this or is there any ready build solution out there?
Thanks.
Look at httpService for your user upload and tie it to a back end web service using POST or GET parameters. Personally, I recommend PHP but any web capable service would work. Then, tie that service to store your images on your web server or in a database. Reverse the process to get it back out. Can this all be done in Flex? No. Can you tie it in with a web service easily? Yes. Good luck.
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I have a request to do something that I am not sure is possible. The request is to create a website that will backup someones PC, either through the internet or they would download a small software package that will back up their pc and send the backup to a remote server, kind of like Carbonite or Iron Mountain. Does anyone have any idea where I need to start with this or look into how to code for this.
I think you should look into the existing HDD image creators (quick googling gave me XXClone, but you may need something else).
You basically need to
create an image of the entire PC's storage (i.e. all logical disks)
upload the image to the internet area
A relatively small program may perform the tasks 1 and 2 for you, provided that you bundle it with an existing image creator.