Mule - Pass Parameters to datamapper and access them in xpath conditions

Question

How to pass parameters to datamapper in mule and access them. (In XSLT, I pass them as context parameters, receive them in param and access using $ symbol). I need to do the sa

Answer 1

You can use input arguments with DataMapper and then refer to them in the output:

<set-variable variableName="testvar" value="value of testvar"/>
<data-mapper:transform config-ref="new_mapping_grf"">
    <data-mapper:input-arguments>
        <data-mapper:input-argument key="testvar">#[flowVars['testvar']]</data-mapper:input-argument>
    </data-mapper:input-arguments>
</data-mapper:transform>

and

output.myField = invokeTransformer("MyTransformer",inputArguments.testvar);

or

output.myField = inputArguments.testvar;

Adding input arguments available in the DataMapper GUI through the input side green plus icon.