Trace: Loop a List


Loop a List

Here's a simple loop example:

The first step (Delete Statement) deletes all records of a heroes database table. The next step (REST Get) loads a list of heroes from an example REST service. The service returns a JSON array of heroes with ID and NAME as attributes, e.g.:

 {"ID":4,"NAME":"Rambo (John)"},
 {"ID":5,"NAME":"Captain America"},
 {"ID":6,"NAME":"Wolverine (X-Men)"}

and stores the list in a variable with the name Heroes. The loop list step iterates all heroes and continues as long as there are entries. If all entries were processed, the final step (Client Call) will be executed to reload the client application.

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