Is there a good non-US based alternative to Firebase? [closed] - javascript

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Question has been asked by another person but not answered:
https://stackoverflow.com/questions/22134739/is-there-a-good-alternative-to-firebase-for-realtime-apps-with-backbonejs
I'm using Firebase and Backbone (Backfire) to create a social network, Firebase itself is close to perfectly integrated into Backbone syntax-wise.
My goal was to make it as privacy-oriented as possible, since German law wouldn't allow me to spy on the users to begin with. Here is the problem with Firebase:
In Response to Legal Process We also may disclose the information we
collect in order to comply with the law, a judicial
proceeding, court order, or other legal process, such as in response
to a court order or a subpoena.
Which means the US Government could spy into the user data and there is nothing I can do about it from here, since US law applies.
Is there an alternative service that will either allow me to run my own server, or that is not US based? I'm not able to find a service that has been integrated nearly as good.

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Approaches to C++/Javascript communication for scientific visualization [closed]

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I have a scientific simulation package written in C++, with poor visualization capabilities---it's hard to see what the simulation is actually doing at any one time. I would like to create a Javascript/WebGL based viewer, which would exchange data AJAX-style with the C++ simulation as it runs and visualize the results. The visualization data would comprise a few kilobytes of floating point data, and would be sent every few seconds. Communication would need to be bidirectional so that the user could specify what information is required to be visualized.
My question: what are the available libraries/technologies to be using on both sides (in the C++ application, and in the Javascript) to exchange this data?
Note: I see that similar questions to this (none of them a duplicate) have been asked and closed. I think my question is a valid one---certainly my need is genuine---and surely this is the best place to get answers. So, if there's some more productive way I should be phrasing my question, please let me know and I will do that.
One possibility is to use WebSockets for the communication. The Qt library includes support for a WebSocket server which the JavaScript client could connect to, after which bidirectional communication is possible. This also allows the exchange of binary data, which should allow you to send floating point data from the C++ side and use it at the JavaScript side as e.g. a Float32Array.

Broadcasting via server [closed]

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Hello everyone im trying to create a webcam broadcast via a server and i was wondering if there is a free away to do so maybe html5 or something and it doesn't have to support all browsers just chrome is sufficient.
I have tried ustream but the delay was incredibly long.
Thanks in advance.
You can have a look at WebRTC: everything is explained in this article. However there are considerations to be aware of about WebRTC and broadcasting notions. Look here and here.
Other than that you can use flash with either Flash Media Server or Wowza Media Server but it is not an immediate implementation and is paid otpion.

Resources to help in making a web analytics tool [closed]

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I have a moderate experience with Ruby on Rails, PHP, SQL an NoSQL databases and CoffeeScript.
I want to build a web analytics tool for people in my country for their local websites, that will also have a main page of top site ranks.
In the beginning I am not asking out of myself to have something as powerful as Piwik or GA, but I want to make a good start. I know I will have to use JavaScript, that is good, I will also need a server-side processing part, but I don't know how to efficiently put these parts together.
I would love to hear about a book about such topic, but I don't think there is one. If possible, please recommend materials and subjects I need to master to make out my plan. Maybe some aids that can help me too.
Why not go through how Piwik use its tracker? It is open-source, so all sources are available.
Might be a good place to start!
Piwik github

Which Framework do i use for checking on confirmed transaction on Bitcoin Blockchain? [closed]

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I'm writing a small gambling site where you can gamble with bitcoins.
As on the large currency exchange sites i want the user to log in. He then can create a new bitcoin address and send a amount of coins to that address.
When the transaction is six times confirmed the site should know about this status and give the user the sent amount of money on the site.
Now my question ist: Which Framework do i use.
The site will be written in Node.js. I have experience in working with the Blockchain Websocket API, but i think it is not reliable enough, so i looked into bitcoinjs.
What do you guys think? Which Framework is the best for determine these things?
Unless you are planning to use blockchain.info as your casino's wallet, I would stay away from their (or any other external) wallet management services, APIs, etc.
The traditional way of interfacing with bitcoin is by running bitcoind on your server, which is a fully fledged bitcoin client (and would need a full copy of the blockchain, so prepare for a big download there). You can communicate with it through its JSON RPC and it will keep track of different wallets/addresses you have & their balances, as well make payments when that is necessary.
That said, there appears to be a native nodejs bitcoind alternative ("bitcoinjs" that you mentioned as well) which would probably be easier to set up. My personal recommendation would be against using an unofficial/alternative implementation. Bitcoind is bitcoin, you can't go wrong with it. Bitcoinjs is far more likely to have bugs than bitcoind, and will presumably be behind bitcoind on updates, which are sometimes crucial.
Here's a getting-started-in-PHP tutorial. I know you aren't going to use PHP, but the principles are all the same. Hope it helps.

Database in cloud with REST API and ACL [closed]

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Is there a database, which can meet the following requirements
hosted in cloud
REST API
support for different API keys with different access rights (especially Read-Only)
free pricing program
I looking for database for Javascript application, without my own middle layer as provider between database and client application.
you have a lot of choices but still you can use free license for development
you can try those
https://parse.com (its very good one and they have a lot of libraries almost for programming language)
"http://couchdb.apache.org" (this is very good choice if you want to build local DB with JSON response )

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