The JSON viewtool does not support valid JSON types, only strings

[swicken-dotcms]

Describe the bug
The JSON viewtool does not support valid JSON types.

Valid JSON types are as follows:
a string
a number
an object (JSON object)
an array
a boolean
null

Currently, our implementation only accepts Map<String, String> meaning that the JSON tool will only accept string values. This causes issues if the receiver is expecting different types.

https://github.com/dotCMS/core/blob/master/dotCMS/src/main/java/com/dotcms/rendering/velocity/viewtools/JSONTool.java#L195

Reproduced on: Latest, 5.3.8.X

To Reproduce
Create a VTL with a call to an API that has non-string values, and attempt to fire it, for example

 $json.post("{{ENDPOINT}}", {

      'Content-Type': 'application/json',

      'Accept': 'application/json'

    }, {
     'testBoolean': true
   
    })

Expected behavior
Our implementation should be able to handle any valid JSON types

[stale]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.

[swicken-dotcms]

Second ticket reporting this: https://dotcms.zendesk.com/agent/tickets/112876

[dsolistorres]

Note for testing

The conversion of the map of parameters to a json sent as payload in the post request should be tested with this overloaded method that was added to the json view tool:

post(final String url, final Map<String, String> headers,
                     final Map<String, Object> params, final boolean useParamsAsJsonPayload)

For example, this VTL code can be used:

$json.post("{{ENDPOINT}}", {
      'Content-Type': 'application/json',
      'Accept': 'application/json'
    }, {
     'testBoolean': true
    }, true)

$json.post("https://postman-echo.com/post", {
      'Content-Type': 'application/json',
      'Accept': 'application/json'
    }, {
     'testBoolean': true
    }, true)

The call above should return successfully:

{args={}, headers={x-forwarded-proto=https, x-forwarded-port=443, host=postman-echo.com, x-amzn-trace-id=Root=1-64ecdf43-72232b0c441bb701368e04a9, content-length=20, content-type=application/json, accept=application/json, user-agent=Apache-HttpClient/4.5.13 (Java/11.0.20), accept-encoding=gzip,deflate}, data={testBoolean=true}, form={}, files={}, json={testBoolean=true}, url=https://postman-echo.com/post}

[bryanboza]

Fixed, tested with he provided example and now it is working as expected

Tested on master // Docker // FF