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Want to develop an application based on NoSQL DB.
I found apache DB, JavaDB & MongoDB are mostly used NoSQL Db's.
So I want to know what is the difference between these NoSQL DB's. I want to develop a web application. So which DB would be better to use.
The main difference is that:
"JavaDB" and "Apache DB" and Derby are the same
Derby is a very SQL standards-compliant database, and thus hardly a NoSQL DB
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Closed 9 years ago.
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I'm new with the amazon servers created my instance yesterday and is working with my site there.
However wanted to put more than one site, anyone know of any tutorial or something parecedido for the Windows version
You can serve any number of sites from an EC2 instace. You just need to point the domain name to the same instance using the DNS. You can use Route53 from AWS as the DNS: http://aws.amazon.com/route53/faqs/
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I am building a mashup, which gets data from rather slow external API and processes it at client side. To speed things up, I would like to add a simple cache which will store processed results online, but I don't want to buy a dedicated server. Is there a free online service to cache any JSON/XML/text data using AJAX?
I've found some solutions:
YQL Caching - free 2000 requests/hour/IP
OpenKeyVal - free 64KB buckets
IronCache - free 100MB & 10M requests/month
GarantiaData - free 25MB in-memory cache
Parse - free 1M requests/month
Amazon ElastiCache - free 750h of Micro Cache Node
Firebase - free 100MB storage
MemCachier - free 25 MB in-memory cache
If you know more, please expand this list.
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I have a project that is using Sinatra framework.
How do I test methods in my models, or controllers that do not have web services but have to use DB connection?
Any link with github/ or Google would be great, as I can't find anything useful.
You can do functional tests of your Sinatra endpoints as outlined here:
http://www.sinatrarb.com/testing.html
http://net.tutsplus.com/tutorials/ruby/how-to-integrate-rspec-into-a-sinatra-app/
And as for your models, just unit test them like normal with a unit test framework:
http://www.rubyinside.com/a-minitestspec-tutorial-elegant-spec-style-testing-that-comes-with-ruby-5354.html
http://net.tutsplus.com/tutorials/ruby/ruby-for-newbies-testing-with-rspec/
http://blog.teamtreehouse.com/an-introduction-to-rspec
If you're not familiar with testing at all, I'd recommend digging into a book:
The RSpec Book: Behaviour Driven Development with RSpec, Cucumber, and Friends
http://artofunittesting.com/other-books/
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I have been hunting for some time now for a service that both allows sending of messages and receiving of messages in a conveniently wrapped solution such as MailGun, Postmark, SendGrid and others. So far I have not been any "developer friendly" solution that facilitates both an smtp service + an imap service for receipt and account management for large quantities (ie, Google Apps is not acceptable).
Am I overlooking a robust already existent solution or do I need to roll my own?
MailGun, Postmark, SendGrid You do not need them. can speak directly with a server.
I post part one and part two for example what i use.
Have fun!
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Hi I want to achieve this. Do you know a service that would allow me to do this
You could use Nexmo (or a similar SMS API), to purchase and proxy through the virtual numbers.
Here's some example code - the specific use case for the example is a situation where you want to mask the user's phone numbers; however, the same concept applies to what you want to do.
And here's a more high level implementation guide on proxying SMS through virtual numbers (or direct to the Prezi).
Disclaimer: I do some developer evangelism for Nexmo.