Filter Reference in Mule

  Filter Reference in Mule




In filter reference, we have to give reference of any filter from the list. In our example i have chosen expression filter and given expression as

#[message.inboundProperties.'http.uri.params'.id=='1']

means when uri param 'id' equals to 1 then only payload is allowed to pass.


flow of reference filter :



Filter reference configuration :

In filter reference configuration click + button to add filter and select any filter. I have chosen expression filter.There in expression block give any suitable expression. I have given


#[message.inboundProperties.'http.uri.params'.id=='1']





URL :  http://localhost:8085/api/filterref/1

 Input :





Output :




XML project code :


<?xml version="1.0" encoding="UTF-8"?>

<mule xmlns:http="http://www.mulesoft.org/schema/mule/http"
xmlns="http://www.mulesoft.org/schema/mule/core" xmlns:doc="http://www.mulesoft.org/schema/mule/documentation"
xmlns:spring="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://www.mulesoft.org/schema/mule/http http://www.mulesoft.org/schema/mule/http/current/mule-http.xsd
http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-current.xsd
http://www.mulesoft.org/schema/mule/core http://www.mulesoft.org/schema/mule/core/current/mule.xsd">

    <expression-filter expression="#[message.inboundProperties.'http.uri.params'.id=='1']" name="Expression" doc:name="Expression"/>

    <http:listener-config name="HTTP_Listener_Configuration" host="0.0.0.0" port="8085" basePath="/api" doc:name="HTTP Listener Configuration"/>
 <flow name="testfiltersFlow2">
        <http:listener config-ref="HTTP_Listener_Configuration" path="/filterref/{id}" doc:name="HTTP"/>
        <filter ref="Expression" doc:name="Filter Reference"/>     
    </flow>
</mule>




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