Web API: Expression

From QPR ProcessAnalyzer Wiki
Revision as of 17:52, 10 October 2021 by Ollvihe (talk | contribs)
Jump to navigation Jump to search

Expression method runs the given expression and returns the result of the calculated expression formatted as json. Each run is stored to a calculation session, and the same session can be continued in the next expression run. This way, for example initialized variables are available in the next run. Calculatation sessions are maintained in the server memory and dropper latest after 10 minutes if not used. The calculation session is related to the user session, so the calculations are not visible to other users or the same user if login to a new session. There can be multiple calculations sessions within the same user session.

Url: POST /api/expression
Content-Type: application/json;charset=UTF-8
Body: (json object with parameters defined below)

Following parameters can be used in the request body:

Example

This example runs an expression in the Model context and show model id and name. It also assumes that there is a variable variable1 available in the calculation session.

{
  "contextType": "Model",
  "expression": "`${variable1}: ${Id}: ${Name}`",
  "sessionName": "UserSession1",
  "modelId": 123
}