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Core#

The Core Tasks are comprised of the JSONata Evaluator Task, which is further explained below.

JSONata Evaluator#

The JSONata Evaluator Task allows for complex data manipulation and processing through the use of JSONata ⧉ expressions. This task is particularly useful for defining and executing expressions that transform or query JSON data structures. To configure an JSONata Evaluator, you need to provide a name and, optionally, a description. Additionally, you can customize its behavior by adjusting the following settings:

  • Auto Refresh - When enabled, the page will automatically update its data at defined intervals. You can set the specific interval according to your needs. The default setting is false.
  • Retrieve Data on Start - When enabled, the system will fetch and display relevant data as soon as the page loads. The default setting is true.
  • Retrieve Data on Changes - When enabled, the system will update the data displayed whenever there are changes. The default setting is true.

JSONata Evaluator Task

The JSONata Evaluator task includes a Setup tab where you can define the JSONata ⧉ expression, setting the logic and operations performed by JSONata Evaluator on the input data. The native MES editor will validate your JSONata expression and indicate any errors, as shown belo

JSONata Evaluator Task Output

JSONata Evaluator Task Output

You will also need to specify the inputs and output, configuring the following fields:

  • Name - This field must be unique to each input or output.
  • Friendly Name - You can provide a more user-friendly name for the input or output. This name will be displayed in place of the technical name, making it easier for users to understand its purpose.
  • Type - Choose the appropriate data type for the input or output. There are several available types, including Boolean, DataGroup, EntityType, Integer, JSON, StateModel, String, among others.
  • Collection type - Specify the collection type if the input or output is not a single value. The options are: Array, Map, or None.
  • Default value - You can define a default value that will be used if no specific value is provided, ensuring the correct execution of the DEE Action.

JSONata Evaluator Task Input

JSONata Evaluator Task Output

If the input or output Type is ReferenceType, and it is one of the following: EntityType, File, Lookup Table, Lookup Value, Query, Role, State Model, or User, you have the option to create a new instance of this value using the New instance toggle button.