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Closed 9 years ago.
Anyone know of a real-time currency rate webservice with frequent update (multiple pr. min.). Needed for a small android app I'm building, so needs to be free.
I would recommend European Central Bank. They provide a daily xml feed, nice and simple.
http://www.ecb.int/stats/eurofxref/eurofxref-daily.xml
You can try Yahoo. It is free and easy to use.
For example, to convert from GBP to EUR: http://download.finance.yahoo.com/d/quotes.csv?s=GBPEUR=X&f=sl1d1t1ba&e=.csv
gives you data in csv format which can easily be parsed.
Have you tried with http://openexchangerates.org ?
You can use it's The Forever Free Plan with following features provided.
Hourly rate updates
Daily historical data
1,000 API requests per month
Real time financial services are usually not available for free. You will find a lot of delayed services ( tipically 15 min ) for free, but you have to make sure licensing allow you to use it in your own application as well.
you have some webs where you can take this information. The problem... usually you need pay for this service. Same examples :
http://www.xignite.com
http://fxtrade.oanda.co.uk/trade-forex/api/
http://forex-automatic-trading-systems.com/developers/api.htm
http://forexfeed.net/developer/php-forex-data-feed-api
I would suggest Mondor's web service, especially the WebAPI one. Not free, but could be about 5$ per year, depending from your architecture. Anyway, here's the link: http://mondor.org
Edit: apparently, they have free keys now, or I missed them previously.
Related
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Closed 10 years ago.
I want to implement an opinion or customer review system, kind of Disqus, or comments for models in Django, with some extra work on processing this reviews.
I have been googling and searching in github for hours, some platform for working with customer reviews, opinions or comments.
Seems like there is a big controversy about comments native in Django. I have read many good, but many bad things so far.
I am wondering if some of you guys know something similar to Disqus but open source.
I am searching some open source platform, because there is a lot of work to do(in which actually I am working) based on processing the reviews and analyzing them and I wanted to cut off the time for developing from scratch the whole system for managing users and reviews, and focus on the text analytics part.
Any opinion is welcomed!
bests,
Luchux.
Take a look at askbot (disclaimer - I am co-founder and developer of the askbot project).
Askbot is a Q&A system like this site, only open source and more flexible and has better support of email. Our project is still work in progress but we are moving quite fast.
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Closed 10 years ago.
I had a requirement to store millions of records in which all are unique with multiple columns.
for example
eventcode description count
526 blocked 100
5230 xxx 20
....
and I want the following requirements while fetching sorting on count column, filtering on columns.
So I thought of using Hbase but I googled up and known that hypertable is faster.
So I am bit confused to know it.
please help me regarding this.
Note: I want to use C++ for transactions (reading, writing).
BIG disclaimer: i work for hypertable.
We have created a benchmark a while ago which you can read here: http://hypertable.com//why_hypertable/hypertable_vs_hbase_2/
Conclusion: Hypertable is faster, usually twice as fast.
Performance actually was the reason why hypertable was founded. Back then some guys were sitting together and discussing an open source implementation of Google's bigtable architecture. They did not agree on the programming language (java vs. c++ - the disagreement was about performance). As a result, one group founded hypertable (a C++ implementation) and the other group started working on hbase (in java).
If you do not trust benchmarks then you will have to run your own; both systems are open source and free to use. If you have questions about hypertable or run into problems while evaluating it then feel free to drop me a mail (or use the mailing list - all questions are getting answered.)
Btw - hypertable does not (yet) support sorting. You will have to implement this in your client application.
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Closed 10 years ago.
What is the most recommended free/public API for accessing financial market stats and stock quotes (preferrably real-time quotes)? I'm not too picky about how it's exposed (SOAP, REST, some proprietary XML setup, etc.), as long as it's got some decent documentation.
I'm planning to build a simple web dashboard in PHP with some basic data (basically a quick-n-dirty homepage), but may want to grow it into a full blown web app eventually. Any thoughts?
As I find some, I'll post a list here (feel free to comment if you've used any of them before):
Free
opentick (soprano) // link doesn't work
Not Free
XigniteRealTime
Yahoo's api provides a CSV dump:
Example: http://finance.yahoo.com/d/quotes.csv?s=msft&f=price
I'm not sure if it is documented or not, but this code sample should showcase all of the features (namely the stat types [parameter f in the query string]. I'm sure you can find documentation (official or not) if you search for it.
http://www.goldb.org/ystockquote.html
Edit
I found some unofficial documentation:
http://ilmusaham.wordpress.com/tag/stock-yahoo-data/
I usually find that ProgrammableWeb is a good place to go when looking for APIs.
Markit On Demand provides a set of free financial APIs for playing around with. Looks like there is a stock quote API, a stock ticker/company search and a charting API available. Look at http://dev.markitondemand.com
Last I looked -- a couple of years ago -- there wasn't an easy option and the "solution" (which I did not agree with) was screen-scraping a number of websites. It may be easier now but I would still be surprised to see something, well, useful.
The problem here is that the data is immensely valuable (and very expensive), so while defining a method of retrieving it would be easy, getting the trading venues to part with their data would be next to impossible. Some of the MTFs (currently) provide their data for free but I'm not sure how you would get it without paying someone else, like Reuters, for it.
I found the links and tips under this question to be helpful.
Some of the brokerage firms like TDAmeritrade have APIs you can use to get streaming data from their servers:
http://www.tdameritrade.com/tradingtools/partnertools/api_dev.html
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Closed 10 years ago.
There are a whole raft of questions regarding payment processors for web applications but I haven't seen one yet for desktop applications. What are your experiences?
Perhaps to put this into a little context, the requirements:
Should be customisable
Should be available in Australia at least, if not world wide (less critical).
No storage of credit card details
Recurrent micro payments of varying amounts each time
1-click payment. It's ok for the user to be registered with the payment processor provider.
Unless you're looking for a world of hurt, you should not have Credit Card processing code in your client software! You might want to have an online component that responds to your client-software events and processes payments, through HTTPS requests, preferably.
It is essential that you remember to never trust ANY business decision / input that comes from the client machine! Otherwise you may be putting yourself at the mercy of black-hats who would code-kong-fu you into bankruptcy.
Times may be a changing, but I don't think that you can get all of the above.
I do have some experience a couple years back with credit cards in North America. At the time the company I worked for needed recurring billing for a different amount each month (much like your requirement). At the time, none of the providers I looked into allowed for recurring payments where the amount varied. This may have changed, but I do not know of one.
I suspect your options are either to store credit cards and process your own transactions (not too hard but a path you have to walk carefully) or use recurring billing with a constant amount.
Micropayments sort of throws the whole thing out, I think, but why not use bpay? Everyone in Australia knows and trusts bpay, I think: http://www.bpay.com.au/
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Closed 11 years ago.
I am looking for an open-source project involving c++ GUI(s) working with a database. I have not done it before, and am looking for a way to get my feet wet. Which can I work on?
How about this one http://sourceforge.net/projects/sqlitebrowser/:
SQLite Database browser is a light GUI editor for SQLite databases, built on top of QT. The main goal of the project is to allow non-technical users to create, modify and edit SQLite databases using a set of wizards and a spreadsheet-like interface.
Do a project you can get involved in and passionate about. Hopefully a product you use every day.
Anything that you like and feel that you can contribute to.
In my brief experience contributing to an open-source project, I found two points keep me contributing:
Great people - the other people contributing were fun to collaborate with and hang out with (virtually).
Project you care about - doesn't really matter which project as long as the its goals are something you want to spend your free time working on.
Sourceforge has a help wanted page: http://sourceforge.net/people/
browse the postings to see if a project is in your expertise or find one that sound interesting...
And let me be the first to say thank you for being willing to contribute your time and knowlede to the open source movement.