Sub-flow example for handling excpetion

error-handling-subflow.xml

    <catch-exception-strategy doc:name="Catch Exception Strategy">
      <flow-ref name="set-errorresponse-subflow" doc:name="set-errorresponse-subflow"/>
    </catch-exception-strategy>
        
    <sub-flow name="set-errorresponse-subflow" doc:name="set-errorresponse-subflow">
      <set-variable variableName="jsonpmsg" value="#[exception.cause.message]" doc:name="jsonpmsgError"/>
      <scripting:transformer doc:name="json-map">
        <scripting:script engine="Groovy"><![CDATA[def jsonpmsg = message.getInvocationProperty('jsonpmsg');
          def estatus = 500;
            
          if (jsonpmsg.indexOf('token_rejected') > 0 || jsonpmsg.indexOf('OAuth') > 0)
            estatus = 401;
            
            def jsonmap=[status:estatus,message:jsonpmsg];
            return jsonmap;]]></scripting:script>
      </scripting:transformer>
      <json:object-to-json-transformer doc:name="Object to JSON"/>
      <flow-ref name="status-jsonp-subflow" doc:name="status-jsonp"/>
    </sub-flow>

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