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PI Web API queries

Question asked by Kiran324 on Oct 9, 2020

I am new to PI Web API and am trying to stream data from PI Web API.

I have to read the values from my AF solution.

Current I am using the streamset functionality at element level. Below is the http call - 

https//server//piwebapi/streamset/<elementwebid/value

 

From this I am able to get the value of all attributes from this element. I am not using marker concept as it is not clear how to use the same.

 

Question - 

Can I apply filter for attribute name while using streamset controller for the element.

Can I pass more than 1 element's WebID using a "GET call" instead of batching various elements in separate http calls using a "POST batch call"

 

Also, currently I am using local WebID type, will this have any implication?

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