Web sockets in IE

Community Support
1

Hi all,

I want to use kdb and web sockets but will be confined to use the browser IE. IE doesn’t support web sockets. I want to display data using html querying for data from kdb. Is this actually possible in IE?

Thanks and regards,

Mark

2

Hi Mark,Yes, you can query a kdb process from a browser using standard GETrequests.I use the kdb-wc[1] framework for building real-time dashboards with websockets, but it also supports polled GET requests in both binary andJSON format, so it should still work in IE.[1] https://github.com/quintanar401/kdb-wcRobOn 14 January 2017 16:10 UTC, Mark wrote:> Hi all,>> I want to use kdb and web sockets but will be confined to use the browser > IE. IE doesn’t support web sockets. I want to display data using html > querying for data from kdb. Is this actually possible in IE?>> Thanks and regards,>> Mark

3

Thanks Rob,

The kdb-wc framework is great! The examples use static queries when pulling data from kdb - they will always run the same kdb command. What if I wish to have a dynamic query? e.g. use 

www.example.com?param1=foo&param2=bar

and use param1 and param2 as parameters to a function

<kdb-srv>someQFunc[param1;param2]</kdb-srv>

Is there a way to actually do this? What I’ve managed to do is build the function with the parameters, but only as a string, so it doesn’t actually evaluate the function.

BR,

Mark

4

Hi Rob,

You should use <kdb-query> object. In it  you may add parameters like $param1$ or `$“$param1$” and etc.

Default param names and their sources are explained in the help. Or you can run KDB.rerunQuery(“queryKID”,{ param1: data1, param2: data2 }) in JavaScript.

WBR, Andrey.