Shiny app as secure REST web service?

[Ignacio Perez Hallerbach]

Dear all, dear Shiny team,

I apologize if this is a trivial question or has been asked in this group before (I didn't see it mentioned though...) but I'd be very grateful for your answers:

Can I use a shiny app as a pure, secure REST web service? I only saw examples of HTML/shiny UIs but would it also be possible to make a shiny app simply a secure REST web service endpoint that...

* Takes and processes HTTP(S) requests?
* Returns the results of my R algorithms as JSON?
* Is secure in the sense that it is accessed via HTTPS and checks the user's credentials before running the algorithms?

I'd very grateful for any answers and pointers to example code.

Thanks so much in advance! Best,

Ignacio

[Joe Cheng]

Shiny is currently not designed for this model (though we potentially could in the future). I would look at RServe, rApache/Rook, and OpenCPU.

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[Ignacio Perez Hallerbach]

cool, thanks a lot for the pointers! Cheers

[Joe Cheng]

Oh and FastRWeb.

On Mon, Feb 18, 2013 at 2:51 PM, Ignacio Perez Hallerbach <ignacio.pere...@gmail.com> wrote:

cool, thanks a lot for the pointers! Cheers

[Ignacio Perez Hallerbach]

great, thanks!

[Mahzad Zahedi]

Do I understand correctly? This means that we can  not communicate with the client-side application (java script)  and server-side application (shiny). Have?

I want to communicate this connection with JSON.!!  Then result of this important post : Shiny can not work with JSON.Is it true? I Iike to work Shiny but This capability is required for me.

Plz help me

[Joe Cheng]

Mahzad, can we get specific? What is the scenario you're trying to solve? Are you trying to add REST to a Shiny app, or are you trying to use Shiny to host a pure REST webservice?

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[Mahzad Zahedi]

Hi Joe Cheng,

I want to use combination of java script and R shiny, it means that if a user click on a node in a graph (java script) its information about that node is send to  shiny to proccessing 
it. Is is clear?

I want to use power of computing R shiny in server side and power of Animation java script in client side. so I need Using JSON.

[Joe Cheng]

That's fine and there are lots of examples of users doing that already. You do this in Shiny not by making REST calls, but by building custom inputs and outputs that Shiny takes care of wiring up to the server. (It is possible for a single component to be both input and output, though we haven't documented that scenario.)

http://rstudio.github.com/shiny/tutorial/#building-inputs

http://rstudio.github.com/shiny/tutorial/#building-outputs

[Mahzad Zahedi]

Thanks, do you have any example about scenario that when i search name of  a node in graph in client side , it is appeared in graph in other words the graph is collapsed or highlighted.

[Joe Cheng]

No, but if you have the JavaScript code that just needs somewhere to send the selected value and server side code that just needs to get at the selected value, then if you post your code we can help you connect the dots using custom input and output bindings.

[Alberto Santini]

Hello.

On Saturday, February 16, 2013 1:45:43 PM UTC+1, Ignacio Perez Hallerbach wrote:

Can I use a shiny app as a pure, secure REST web service? I only saw examples of HTML/shiny UIs but would it also be possible to make a shiny app simply a secure REST web service endpoint that...

With RServe and Node.js you may use node-rio:

https://github.com/albertosantini/node-rio

Regards,

Alberto

[ignacio.pere...@gmail.com]

Thanks a lot, I'll have a look. Best, Ignacio

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From: Alberto Santini <alberto...@gmail.com>

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Date: Mon, 25 Mar 2013 06:12:13 -0700 (PDT)

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Subject: Re: Shiny app as secure REST web service?

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[Mohammad]

Hello All,

Now, I have a similar question. I have a web application written in R by shiny. It read data and produce an algorithm and results. I want to be able to call this web application by a restful application and send data for the web application and receive the results and algorithm by any mean.

Can I do that? if so, how?

Thanks in advance