How do I test win32 DLL plugin

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A very simple query, your solution would help tremendously. Many thanks in advance.

With the help of C++, I am trying to built a Win32 DLL Data Plugin using the instructions as mentioned in the ADK of a software (client), which is going to fetch data from TCP Socket based API and then inject the received data snapshots onto the client-software.

The problem is that in order to access these APIs I need to go through a lot of paper-work, they don't come for free ($50-$80 a month) plus there is a $2000 deposit money required and there is no Trial period either. I intend to test whether my data-plugin works or not before signing-up.

I am not expecting anyone to read all that, just want to know whether there are any dummy TCP/Socket based APIs available that data-streams using which I could test my C++ DLL Plugin before going live?

What I have tried:

Being searching, unable to find anything!

Posted 15-May-19 22:54pm

ChimpTrader

Updated 16-May-19 5:34am

v4

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Kornfeld Eliyahu Peter 16-May-19 5:24am

Not clear for what software do you try to write a plugin? API of who?
(Link to other sites is not a way to pass information - you should not expect us read all the info for you)

ChimpTrader 16-May-19 5:55am

Peter, please, don't get me wrong! I am not expecting anyone to go through the documents, just mentioned them for instance. All I am trying to know is that, are there any dummy TCP/Socket based APIs available that datastreams using which I could write and test my C++ DLL Plugin?

Kornfeld Eliyahu Peter 16-May-19 6:10am

TCP/Socket based API that datastreams using...
Datastreams is a company? The one wants to sell you the right to use it without beta?

Richard MacCutchan 16-May-19 5:28am

Tell your client to pay. This is not a technical question.

Dave Kreskowiak 16-May-19 9:13am

That's just it. You're not "going live" without testing against the REAL data source API. Attempting to do so is just plain irresponsible.

...aaaaand how is your "injection API" going to know exactly how the data from the real API is supposed to look to your code, ... without ever seeing the real API data ...??

ChimpTrader 17-May-19 3:22am

Hi Dave,

Thanks for your levity "Injection API" :)

Well, I am really stuck. Not a soul is funding this project of mine and giving time to show them it works, even if it won't work at first go, then in a very little time I can tweak it to make it work. So, before all the paper work, all of the hassle, they want me to show them the DLL plugin would be able to deliver.

Hence, was wondering whether there are any such Socket-based dummy APIs using which I could show them - "yes, the plugin works" - then, they would trust and open up an account with IB for their TWS API. I am ok writing again for the Dummy API. Once the deal is made, I shall publish the DLL with the TWS one.

Dave Kreskowiak 17-May-19 7:43am

So you're trying to demo some made-up "plugin" against some made-up "API" to demonstrate you can write such a thing?

To directly answer your rather vague question, no there isn't. You're going to have to write it yourself. The problem is since you can use the real API, how are you going to know what to make your data stream look like and have it spit out dummy data?

I'd use a different vendor if at all possible that supports a cheap or free test environment to use.

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Gerry Schmitz · Answer 1 · 2019-05-16T04:30:00

Solution 1

Test "what part"?

You can "mock" anything. You should be able to abstract the "last part" to 2 or 3 lines until someone decides to "pay up".

Connect; send; receive.

Posted 16-May-19 4:30am

Gerry Schmitz

KarstenK · Answer 2 · 2019-05-16T05:34:00

You should ask your client to pay the costs or pay yourself to get over it.

The alternative is that you mock the interface of the plugin yourself and so can verify that your code is running fine.

tip: create some scenarios with lame and or broken connection to simulate error handling like reestablishing the connection or timeouts.