Starcounter/Starcounter

Starcounter is a fusion of your C# VM and a ACID RAM DBMS

pal88

@pal88

ok... so i tried running example files in command line/command prompt... it said file not found for all files... so i thought may be we can access it in the starcounter server command prompt...... sorry for confusing...

for the examples where we have accepting parameters in the examples like squaring a number.... error SCERR6066- an unhandled,unidentified nonstarcounter execption occurs

Per Samuelsson

@per-samuelsson

hi pal88

can u provide the code that fails with 6066-error? its hard to help you solve this without seeing the code

pal88

@pal88

using System;
using Starcounter;

namespace example4
{
class Hello
{
static void Main()
{
Handle.GET("/squared?{?}", (int x) =>
{
return "<!DOCTYPE html><title>Hello</title>" + x + " squared equals " + x * x;
});
}
}

}

it runs now but gives error" URI not found: GET /example4 "

when tried to open it in a browser...

Per Samuelsson

@per-samuelsson

" GET /example4" is the wrong string, you should to "localhost:8080/squared" to invoke it

pal88

@pal88

tried that as well still says the same thing...:(

it says resource not found..

Per Samuelsson

@per-samuelsson

maybe you are not formatting it correctly? are you providing a number to be squared for example?

pal88

@pal88

should not the number be given at run time

Per Samuelsson

@per-samuelsson

localhost:8080/squared?10

yes, it should, its a parameter in the call to your handler

pal88

@pal88

oh i dint know that....thanks..

Per Samuelsson

@per-samuelsson

if u define your handler like u have done in the code above, you should invoke it (from a browser for example, or using curl) like this: localhost:8080/squared?100

pal88

@pal88

im sorry may be i dint understand the tutorial properly....it should have been beginner friendly...

thanks for your patience... @per-samuelsson

Per Samuelsson

@per-samuelsson

sure, no problem! we are here to help :hand:

pal88

@pal88

is there any tutorial on how to plot a graph using starcounter??

Per Samuelsson

@per-samuelsson

hi pal88

no, not to my knowledge

maybe @dan31 knows?

pal88

@pal88

is there any tutorial on how to plot a graph using starcounter??

Per Samuelsson

@per-samuelsson

hi again pal88

this is out of my expertice, sorry

can write a few lines about what is is you are after, and I will try to redirect your questions to someone that might know better?

pal88

@pal88

oh.. can someone help me out... thanks..

Per Samuelsson

@per-samuelsson

yes, if u specify more precisely what u are after

pal88

@pal88

hi @per-samuelsson

i need to plot graphs using data acquired on a regular basis...

for eg - like plotting a graph of temperature variations over a week/month

Per Samuelsson

@per-samuelsson

i will forward this and see if someone can help u out

Marcin Warpechowski

@warpech

from the server side, you need to expose the data as a JSON array

and then on the client, you just bind to the data, preferably using a Web Component or some JavaScript charting library

Ivar Bergman

@ivarbergman

Hi! What is the recommended way to get the Location value (in Javascript)? I need to create a xhr call to a Handle, and thus need to set the Referer headers. Is there some method/property on the Puppet object I can use to fetch the Location value?

Ivar Bergman

@ivarbergman

I think I found it. Can you confirm that this seems like a OK way to pass the session/location in a xhr call:

xhr.setRequestHeader('X-Referer', puppet.network.remoteUrl.pathname);

Per Samuelsson

@per-samuelsson

hi @ivarbergman

sorry, this is totally not my area, I'll see if I can find someone that can pop in and comment on your findings :sparkles:

Tomek Wytrębowicz

@tomalec

Hi @ivarbergman , do you really need to make very custom XHR? there is a puppet.network.send method

Per Samuelsson

@per-samuelsson

thanks tomalec :+1:

Tomek Wytrębowicz

@tomalec

.send will take care on versioning, OT and all that stuff for you

in other case puppet.network.remoteUrl seems good way to go, but we have not tested it that way, and probably you will need to handle versioning manually

Ivar Bergman

@ivarbergman

Thanks! I will take a look at .send

Tomek Wytrębowicz

@tomalec

You can let me know directly if you find any problems with it

Marcin Warpechowski

@warpech

@ivarbergman is some pattern regarding the use of Puppet that we could further explain in the docs?

Ivar Bergman

@ivarbergman

Thanks for the feedback. Maybe I should explain what I am trying to do. (You might have a better suggestion on how to implement this):

We use html5 FileApi to upload large files to the server. Each file is divided into chunks. The client makes a http get request to check if the chunk already exists on the server. I the chunk needs to uploaded the client makes a http post call with the file chunk data. This is repeated until all chunks exists on the server.

We also thinking about wrapping the http://www.resumablejs.com/ into a web component with a starcounter handler backend.

Therefore I need to make a custom xhr call, to be able act on different http status, but I still need to make sure that the Session is intact. Have you done anything similar to this?

Ivar Bergman

@ivarbergman

Hi! Is there a way to get the current instance of the ServerConfiguration class? From within an application.

The reson is that I need to get the DatabaseDirectory property to perform a backup routine using ShadowSpawn as described in the Guide

Ivar Bergman

@ivarbergman

(One could argue that it is easier to make a bat-script with the path hard coded. But since the path is in the database config file it might be less administrative hassle to trigger the backup job from the application it self.)

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