I heard that some cryptocurrencies have their own decentralised exchanges. Is it possible to sell our own apps there and how should that work? Maybe we should implement the cryptocurrency in the app? Otherwise somebody may buy it and sell it again? I am sorry if my question is too simple, I started learning to code 2 months ago and I am full of questions now :)
It sounds like it is possible to be done with NXT Coin
https://nxtforum.org/
http://nxt.org/
Its a decentralized crypto currency. Check their API and the decentralized exchange that it provides. Really interesting possibilities there.
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Does anyone know what the ETA (expected time of release) of the Expo-payment-stripe for managed workflow? This information helps in project planning and using the right solutions for our product. Thank you!
I work on Expo. It will take at least a few more months, and possibly longer, for us to integrate Stripe into the managed workflow, as is.
The reason for this is that Apple will sometimes reject apps if they have any Stripe code in them but aren't collecting payments, and right now, all managed workflow apps have the same binary code.
For now, the bare workflow is the best way to integrate Stripe and other payments solutions. In the medium term, we are working on ways to give you the best of both worlds. And eventually, we'll probably be able to put it into something that looks like the managed workflow.
I'm sorry we don't have a better solution for you already. This is one of the most requested features and we are working on stuff now that will give you more options to solve it in good ways.
I am planning on using Twilio to conduct surveys over SMS and IVR. The surveys will assess food security risk, and will be primarily conducted in African countries.
In order to reimburse the cost of airtime, and to incentivize respondents, I would like to transfer a small amount of credit ($0.50) upon completion of the survey.
I've found a couple of websites that support this sort of transfer, http://www.digicallingcards.com/, and http://www.transfertpays.com/en/, but (as far as I can tell) they don't offer programmatic access.
Does Twilio support this? Or is there another API that supports this kind of transaction?
I work for Twilio and this is not something we currently provide.
When working with this kind of thing (mainly with charities etc) I see people use the concept of 'flashing'.
This is a well known concept in Africa, so it is worth considering. The idea is that you publish a number that people can ring. They then hang up when the phone rings but before it is answered - almost immediately. Your service or operators can then call that person back so they don't have to pay anything for the call!
May be worth looking at. Hope this helps!
Can anyone discuss some of the pros / cons / ease of use for Stripe's test mode vs. Paypal's sandbox testing? Specifics appreciated!
Speaking from personal experience, unless you need to accept PayPal payments, Stripe is way better than PayPal.
PayPal is way too big to really care about small developers. Just look at the number of questions that actually gets answered. In general, whenever I'm faced with a PayPal-related problem, I can expect to solve this on my own rather than asking anyone from PayPal
PayPal still need to support code from 10+ years ago that uses legacy SOAP stuff and meanwhile it also tries to come up with newer APIs. This just creates crazy amount of confusion. I might be exaggerating here but there are at least 5 ways to send a payment in PayPal, and 10 ways to receive a payment. With Stripe, it is just one API and that's all
These two are the main thing that discourages me from PayPal. There are tons of other issues like mystic error codes, slow website and weird restrictions here and there
If you can, just avoid PayPal integration and save yourself hours of pain and headache
I need to create an e-commerce website. I am thinking if I can use Joomla and VirtueMart to finish it. I have never used VirtueMart before. I am just worrying about if this solution is great. VirtueMart is a shopping cart… is it easy to link it with payment gateway from different banks? Is it secure? Thank you for any suggestions. Many thanks
Virtuemart is probably one of the biggest shopping carts available for Joomla. It's one of the most comprehensive to my knowledge and I believe that it will accept payment gateway from different banks. How easy that is to setup is a subjective question... it would depend on your level of comfort with those things. In my experience Virtuemart is very full figured, secure and is a great ecommerce platform. Since they've released it for 1.7 it should in theory work with 2.5 (the LTS release). Their support has always been highly reviewed and the user community is large as well.
I've used it before in the past with great success but the sites were much more simple and didn't include working with multiple banks - just paypal support.
Anyhow, I hope this information helps!
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So I'm getting really sick of E*TRADE and, being a developer, would love to find an online broker that offers an API. It would be great to be able to write my own trading tools, and maybe even modify existing ones.
Based on my research so far, I've only found one option. Interactive Brokers offers a multi-language API (Java/C++/ActiveX/DDE) and has some fairly decent commission rates to boot. I want to make sure there aren't any other options out there I should be considering. Any ideas?
Update: Based on answers so far, here's a quick list...
Interactive Brokers
Java
C++
ActiveX
DDE for Excel
Pinnacle Trading
C++
Perl
VB.NET
Excel
MB Trading
I vote for IB(Interactive Brokers). I've used them in the past as was quite happy. Pinnacle Capital Markets trading also has an API (pcmtrading.com) but I haven't used them.
Interactive Brokers:
https://www.interactivebrokers.com/en/?f=%2Fen%2Fsoftware%2Fibapi.php
Pinnacle Capital Markets:
http://www.pcmtrading.com/es/technology/api.html
Looks like E*Trade has an API now.
For access to historical data, I've found EODData to have reasonable prices for their data dumps. For side projects, I can't afford (rather don't want to afford) a huge subscription fee just for some data to tinker with.
I've been using parts of the marketcetera platform. They support all kinds of marketdata sources and brokers and you should easily be able to add more brokers and/or data providers. This is not a direct broker API of course, but that helps you avoid vendor lock-in so that might be a good thing. And of course all the tools they use are open source.
openecry.com is a broker with plenty of information on an API and instructions on how to do yours. There are also other brokers with the OEC platform and all the bells and whistles a pro could ask for.
There are a few. I was looking into MBTrading for a friend. I didn't get too far, as my friend lost interest. Seemed relatively straigt forward with a C# and VB.Net SDK. They had some docs and everything. This was ~6 months ago, so it may be better (or worse) by now.
IIRC, you can create a demo account for free. I don't remember all the details, but it let you connect to their test server and pull quotes and make fake trades and such to get your software fine tuned.
Don't know much about cost for an actual account or anything.
Ameritrade also offers an API, as long as you have an Ameritrade account: http://www.tdameritrade.com/tradingtools/partnertools/api_dev.html
.NET Client Library for TD Ameritrade Trading Platform:
TD Ameritrade .NET SDK, also available via NuGet
Only related with currency trading (Forex), but many Forex brokers are offering MetaTrader which let you code in MQL. The main problem with it (aside that it's limited to Forex) is that you've to code in MQL which might not be your preferred language.