Hi Bikram,
At first you should mark dynamic part of URL with {someParameter}
See details about it: http://devcenter.appery.io/documentat...
Then you have two ways for it:
1 You can save dynamic part of your URL in "settings service". Then use this settings for all services. And change only in this single place "settings service" when you need to change this dynamic URL part.
2 You can specify this "someParameter" in every DataSource with JS like:
pre
var someParameter = localStorage.getItem("someParameterLSV");
return someParameter;
/pre
In this time value will get dynamically from LSV.
So it's up to use what to choose.
Regards.