Converting flow variables to global variables

About flow variables

• Flow variables can be passed as URL parameters or URL variables to the user-created API endpoints.
• Flow variables can be passed as URL parameters to the run flow by name API.
• Flow variables can also be defined when creating nested flows.

They can be used in source and destination queries or accessed programmatically.

They cannot be used to customize for the connections (for example URL) or transformations (for example FROM and TO field).

When to convert

The flow variables can be converted to the global variables if you wish to add a parametrization to the connections or transformations.

How to convert

If the flow variables are defined when creating nested flows

Step 1. Create JavaScript flow.

Step 2. Add the following JavaScript code:

importPackage(com.toolsverse.config);

var vars = scenario.getVariables();
var props = SystemConfig.instance().getProperties();

if (vars != null && !vars.isEmpty()) {
   for (var i = 0; i < vars.size(); i++) {
      props.put(vars.get(i).getName(), vars.get(i).getValue());   
   }
}

If you expect the global variables to be used in the loop with enabled multithreading replace the line

var props = SystemConfig.instance().getProperties();

on

var props = SystemConfig.instance().getContextProperties();

Step 3. Add JavaScript flow to the nested flow as a step 1.

If the flow variables are passed from the API

Step 1. Add the flow which receives an API request to the nested flow as a step 1. 

Step 2. Add the following conditions to step 1:

importPackage(com.toolsverse.config);

var vars = scenario.getVariables();
var props = SystemConfig.instance().getProperties();

if (vars != null && !vars.isEmpty()) {
   for (var i = 0; i < vars.size(); i++) {
      props.put(vars.get(i).getName(), vars.get(i).getValue());   
   }
}

value = true;

If you expect the global variables to be used in the loop with enabled multithreading replace the line

var props = SystemConfig.instance().getProperties();

on

var props = SystemConfig.instance().getContextProperties();