REST API JSON boolean type

[vasil]

Is there any example that will guide me how to use correctly boolean type with REST API and JSON.

I face this error:

Error occurred while executing job: condition expression returns non-Boolean: true (java.lang.String)
org.activiti.engine.ActivitiException: condition expression returns non-Boolean: true (java.lang.String)
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I start a process via REST API:
http://localhost:8080/activiti-rest/service/process-instance

Body (JSON)
{
    "processDefinitionKey":"SendWelcomeEmailToCustomer",
    "hasEmail":"true",
    "hasEmail_type":"boolean"
}‍‍‍‍‍‍

Excerpt from bpmn xml:

<startEvent id="startevent1" name="Start" activiti:initiator="employeeName">
      <extensionElements>
        <activiti:formProperty id="hasEmail" name="Has Email" type="boolean" required="true"></activiti:formProperty>
      </extensionElements>
</startEvent>
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[trademak]

Hi,

It's similar to the Java API you can find in the FormService.
The parameters are all passed as String values, event if the value type is a boolean.

Best regards,