I am using serviceCalloutPolicy to get response from some "xyz" api. The response returned by "xyz" api is text data like "abnfhjdkdhrju784hhkfjhbbhg21g3u2u9fdjkfnfddsnrijirry3784yewrgshbsdjbcjsvnvksdnv" which is neither json nor xml . so how can extract this data into variable. I want to use this data as header in another api call.
You can get the response value by using Extract Variable Policy.
Place it after your Service Callout Policy.
<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<ExtractVariables async="false" continueOnError="false" enabled="true" name="EVTIB-ExtractValueFromJC">
<DisplayName>EVTIB-ExtractValueFromJC"</DisplayName>
<IgnoreUnresolvedVariables>true</IgnoreUnresolvedVariables>
<Source clearPayload="false">yourJavaCalloutReponseName</Source>
<VariablePrefix>resp.data</VariablePrefix>
<JSONPayload>
<!--- Extract value from Json or XML , for example Json-->
<Variable name="apiRespData">
<JSONPath>$.data</JSONPath>
</Variable>
</JSONPayload>
</ExtractVariables>
And then use variable name to reference the value.