UiPath Activities

The UiPath Activities Guide

Deserialize Json


Deserializes the JSON string to a JObject.



  • DisplayName - The display name of the activity.


  • JsonString - The string containing the JSON to be deserialized. The JSON should be written without indents, and between double quotes. Strings inside the JSON should be written with single quotes. For example, the following JSON is valid: "{'TenancyName': 'Documentation', 'UsernameOrEmail': 'Documentation', 'Password': 'Documentation'}".



If the string provided in this property field is not valid JSON syntax, an error is thrown at runtime.


  • Private - If selected, the values of variables and arguments are no longer logged at Verbose level.


  • JsonObject - The deserialized JSON, as a Newtonsoft.Json.Linq.JObject variable. For more information on Newtonsoft.Json.Linq.JObject objects, go here.

Example of Using the Deserialize Json Activity

The Deserialize Json activity is used for extracting data from .json files and strings.
To exemplify how to use this activity, we have created an example that uses the Deserialize Json activity for extracting the age of a person from a .json file.

This is how the automation process can be built:

  1. Open Studio and create a new Process.
  2. Drag a Sequence to the Workflow Designer.
    • Create the following variables:

Variable Name

Variable Type

Default Value







  1. Drag a Read Text File activity inside the sequence container.
    • In the Properties panel, add the value "JsonString.txt" in the FileName field.
    • Add the variable JsonText in the Content field.
  2. Add a Deserialize JSON activity below the Read Text File activity.
    • In the Properties panel, add the variable JsonText in the JsonString field and the variable JsonObj in the JsonObject field.
    • Select the value Newtonsoft.Json.Linq.JObject from the TypeArgument drop-down list.
  3. Place an Assign activity under the Deserialize JSON activity.
    • Add the variable Age in the To field and the expression JsonObj.SelectToken("age").ToString in the Value field.
  4. Drag a Write Line activity below the Assign activity.
    • Add the variable Age in the Text field.
  5. Run the process. The robot extracts the age value from the .json file and displays it in the Output panel.

Updated about a month ago

Deserialize Json

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