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The JSON Tool in a process enables one to issue a JSON web service call, and to save the returned data into Joget's form data and/or into the process's workflow variable. Download the demo app to try it out on your Joget DX platform.

The Joget Marketplace has a free JSON Form Options Plugin to use JSON to populate Form Select Box, Check Box or Radio Buttons.

JSON Tool Properties

Configure JSON Tool

NameDescriptionScreen (Click to view)
JSON URLURL to be called.

Figure 1: Configure JSON Tool

Call Type

Select the call type:

  • GET
  • POST

GET requests include all required data in the URL. GET is less secure compared to POST because data sent is part of the URL. So it's saved in browser history and server logs in plaintext.

In contrast, HTTP POST requests supply additional data from the client (browser) to the server in the message body. POST is a little safer than GET because the parameters are not stored in browser history or in web server logs. From here.

POST Method

(Call type = POST)

Select the post method:

  • POST Parameters
  • POST Parameters as JSON Payload
  • Custom JSON Payload

POST Parameters

(Call type = POST)

When POST Method is set to "POST Parameters", these parameters will be sent as a UrlEncodedFormEntity.

When POST Method is set to "POST Parameters as JSON Payload", these parameters will be sent as a StringEntity in a form of an escaped JSON string.

Custom JSON Payload

Write your own JSON to be the payload. It will be sent as a StringEntity.

This option is available only when "Custom JSON Payload" in selected.

Request HeadersAdd name(s) and value(s) to the request header.
No Response Expected

Check if no response is expected, so that even if there is a response, this tool will simply ignore it.

Using this option will also disable "store to form" and "store to workflow variable" properties.

Debug ModeShow relevant debug entries in the server log for debugging purposes.

Store To Form

NameDescriptionScreen (Click to view)
FormSelect target form to store data to.

Figure 2: Store to Form

Base JSON Object Name for Multirow DataName of the object that contains an array to be based on.
Field Mapping

Mapping with JSON data with Form fields.

Field NameForm field ID
JSON Object NameJSON property name

Store To Workflow Variable

NameDescriptionScreen (Click to view)
Workflow Variable Mapping
Workflow VariableWorkflow Variable Name.
JSON Object NameJSON property name.

Figure 3: Store to Workflow Variable

Notes On JSON Returned Data

Introduced in v5, the API Domain Whitelist setting in General Settings needs to be configured to allow JSON API requests. If a request is from a non-whitelisted domain, the response will be a HTTP 400 Bad Request. Enter asterisk " * " into the API Domain Whitelist field in General Settings to allow API calls.

In figure 2 and 3 above, you can specify how to treat the returned data. The returned data may be saved as form data or/add to be saved into process's workflow variable. The example used in this article shows how one can store multi-row data into a form data table.

Sample JSON API POST call: http://localhost:8080/jw/web/json/apps/published/userviews 

Sample JSON Returned Results
	"apps": [
			"name": "App Center",
			"userviews": [
					"name": "Joget DX",
					"id": "v",
					"version": 1,
					"url": "/jw/web/userview/appcenter/v"
					"name": "Joget DX Platform",
					"id": "v2",
					"version": 1,
					"url": "/jw/web/userview/appcenter/v2"
			"id": "appcenter",
			"version": 1
			"name": "Customer Relationship Management",
			"userviews": [
					"imageUrl": "/jw/web/app/crm/resources/crm_icon.png",
					"name": "Customer Relationship Management",
					"id": "crm_userview_sales",
					"version": 1,
					"url": "/jw/web/userview/crm/crm_userview_sales"
			"id": "crm",
			"version": 1

Figure 4: Download the demo app below to view how JSON TOOL is used in run process to populate form records

Download Demo App


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