Expression Filter in Mule

Expression Filter in Mule

Mule Filters are a handy way of analyzing the messages passing through our flow and determining whether they should be processed or not. Simply put, once a message reaches a filter component in the flow and meets the filter’s logical conditions, the message may pass through untouched. Otherwise, flow execution is terminated and no more processing is done. 
Expression filter filters payload on the basis of some expression.Here in our example i have given an expression that if name query parameter equals to himanshu then only it will allow to pass payload.

#[message.inboundProperties.'http.query.params'.name == 'himanshu']

flow of expression filter :

expression filter configuration :

URL  :  http://localhost:8085/api/expfilter

Input :

Output :

XML Project code :

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

<mule xmlns:http=""
xmlns="" xmlns:doc=""
    <http:listener-config name="HTTP_Listener_Configuration" host="" port="8085" basePath="/api" doc:name="HTTP Listener Configuration"/>
 <flow name="testfiltersFlow1">
        <http:listener config-ref="HTTP_Listener_Configuration" path="/expfilter" doc:name="HTTP"/>
        <expression-filter expression="#[message.inboundProperties.'http.query.params'.name == 'himanshu']" doc:name="Expression"/>

© 2020

Share on :

Mule 4:

XML to JSON in mule 4 Web service consumer VM Validation in Mule 4 Until Successful
Sub flow Set Variable & Remove Variable Set Transaction ID Scatter Gather Round Robin
Consume Restful Service CRUD in Mule 4 Parse Template Object to JSON Load Static Resource
JSON to XML Invoke Idempotent Filter ForEach Flat file to JSON
Fixwidth to JSON First Successful File Execute Error Handling
Email Dynamic Evaluate Custom Business Event CSV to JSON Copybook to JSON
Choice Router Async RabbitMQ

Mule 3:

Database Connector Async CXF Attachement XSLT
Mongo DB Cache scope Custom Business Event Gzip Compress Expression
SMTP For Each Expression Javascript Filter Reference
Salesforce Message Enricher Groovy Parse Template Idempotent
VM Poll Invoke Ruby Message
Webservice consumer Python Transformer reference Message Property Not
Collection Aggregator First Sucessful Catch Exception Strategy Reference Exception Strategy Or
Choice Message Chunk Aggregator Choice Exception Strategy Global Exception Strategy Schema Validation
Custom Aggregator Scatter Gather Custom Exception Strategy Batch Processing MEL
M Unit RAML Map Operator API Mocking Dataweave