Hi Seetha, You could add the following in-sequence to your API, it will return error response to the user, if header is not present:
<sequence xmlns="http://ws.apache.org/ns/synapse"; name="sequence"> <property name="BusinessTransID" expression="$trp:BusinessTransID" /> <filter source="boolean(get-property('BusinessTransID'))" regex="false"> <then> <payloadFactory media-type="json"> <!-- Flow if not exists --> <format>{ "Error": "Missing header - BusinessTransID "}</format> <args/> </payloadFactory> <respond/> </then> <else> <!-- Flow if exists --> </else> </filter> </sequence> Thanks, Vithursa On Thu, Nov 7, 2019 at 2:02 PM seetha1 <[email protected]> wrote: > HI all , > how do i validate customer headers , i have to throw exception if an > header is empty. > e.g - BusinessTransID. > > regards, > seetha > > > > -- > Sent from: > http://wso2-oxygen-tank.10903.n7.nabble.com/WSO2-Development-f3.html > _______________________________________________ > Dev mailing list > [email protected] > http://wso2.org/cgi-bin/mailman/listinfo/dev > -- *Vithursa Mahendrarajah* | Senior Software Engineer | WSO2 Inc (m) +94 766 695 643 | (e) [email protected] * <http://wso2.com/signature>[image: https://wso2.com/signature] <https://wso2.com/signature>*
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