How to Work with Processes > Working with the Web Services Processes Group

Process Purpose

The "JSON to Variable(s)" process is used to parse information from a JSON source file and store the results into new variables.

You can parse up to 40 fields in one single command.

When you add a process, you are required to define its settings. This occurs in the process's properties window which is displayed automatically after having added the "JSON to Variable(s)" process.

If any subsequent edition is required, double-click the process to open its properties window and enter the necessary modifications.

Fill in the following options:

JSON Source
Content Type	Define the type of content to be read in the JSON source: String - If you check this option, click and select the variable with the string to be read. File - If you check this option, enter the "Path + File Name" OR click to select the variable with the information.
Variables to Assign
JSON 'Path Name' column	Select the JSON's path name from the drop-down OR click to select the variable with the information. See Variable Usage.
Store into Variable column	Click to select the variable that receives the parsed data. See To Select/Create a Variable.
If Error
Go to	Select a target location from the drop-down or list, in case an error occurs. See Detail of a window below. When defining a screen as a target destination (ex: via a “Go to” process), you CANNOT use variables to specify the name of that target screen. You must select the intended screen from the available drop-down/list.

Use the editing icons to the right of the table to move the rows up and down and to delete or add more rows.

You can use relative paths to refer the JSON file. See Working with Aliases.

Detail of a window:

"S:Menu" is a screen included in the same program as the process.

"R:Routine_1" is a routine included in the same program as the process.

If required, use the icons on the upper right corner of the properties window:

Click this icon to define a JSON data source. It opens a "Select JSON Data Source" window. For more information on how to fill the options available, see Detail of the "Select JSON Data Source" window below.

Use the icon to attach any relevant notes to this process. Click it and enter your notes in the resulting text box. These notes will be displayed in the corresponding "Actions" tab or "Process" window (in the "Notes" field) and in the "Developer Report".

After filling in the required options, click to conclude, or to abort the operation.

The added process is displayed in the corresponding "Actions" tab or "Process" window.

Detail of a "Select JSON Data Source" window

After clicking , you open the "Select JSON Data Source" window.

Fill in the following options:

JSON Data Source
JSON Data Source	Select the data source (URL or File): Load from URL - Enter the required URL and click to verify/refresh the link. Load from File - Enter the "path+file name" OR click and browse for it.
JSON Content
If the selected data source is a file, the table provides a view of the data contained in that JSON file.
JSON Structure
If the selected data source is a file, you are provided with a view of its structure.

Click Here for an Example

Once you have selected the JSON Data Source, click to conclude or to abort the operation.

You can use relative paths to refer the required file(s). See Working with Aliases.

If you want to use a label as a target destination, you can use the "Auto-Label" mechanism. This alternative to the "Set Label" process allows you to create a label in the properties window of a process - specifically, in the fields used to define target destinations (ex: the "If Error..." type fields). See To Automatically Create a Label.

Use the right-click in MCL-Designer's input boxes to access some related options as well as the general "Cut", "Copy"; "Paste"; "Search" actions (active/inactive according to the current context).

Ex: If you right-click the "Variable" input box (included in a "Conversion's" properties window), you are provided with general editing/search actions and other more specific options such as "Variable Select" (see "Variable Select"); "Variable Insert" (see "Variable Insert"); "Insert Special Character" (see To Insert Special Characters into a Control's Text Input Field) and "Localization Select" (see Localization List).

If you right-click another input box, it may provide other possibilities.