I am new to Canvas App. When I go through the existing documents and topics about Canvas App I have found them kind of confusing to me.
How should I pass record or Visualforce/Lightning component form information into Canvas App? I read from the previous post: What's the parameters atribute in apex:canvasApp used for?
It seems to me that I shouldn't be using parameter to pass the information. One post on reddit suggest I should be using signed request to pass the information and then decode the json data. But I am not quite sure whether this is the correct thing to do. Any suggestions?