Javascript Transformer in Mule | Scripting in Mule




Javascript Transformer in Mule | Scripting in Mule

We can write javascript code and perform javascript operations in Javascript Transformer.

flow of javascript transformer :





javascript code that is written in javascript transformer :


                  var x = eval('(' + payload + ')');

                for (var i = 0, sum = 0; i < x.length; sum += x[i++]);
                message.setPayload(sum + "");
                result = message;
     

URL :  http://localhost:8085/api/javascript

Method : POST


Input :






Output :








XML project code :


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

<mule xmlns:http="http://www.mulesoft.org/schema/mule/http" xmlns:scripting="http://www.mulesoft.org/schema/mule/scripting" 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.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
http://www.mulesoft.org/schema/mule/http http://www.mulesoft.org/schema/mule/http/current/mule-http.xsd
http://www.mulesoft.org/schema/mule/scripting http://www.mulesoft.org/schema/mule/scripting/current/mule-scripting.xsd">
    <http:listener-config name="HTTP_Listener_Configuration" host="0.0.0.0" port="8085" basePath="/api" doc:name="HTTP Listener Configuration"/>
    <flow name="test_javascripttransformerFlow">
        <http:listener config-ref="HTTP_Listener_Configuration" path="/javascript" doc:name="HTTP"/>
        <byte-array-to-string-transformer doc:name="Byte Array to String"/>
        <scripting:transformer doc:name="JavaScript">
            <scripting:script engine="JavaScript"><![CDATA[                var x = eval('(' + payload + ')');
                for (var i = 0, sum = 0; i < x.length; sum += x[i++]);
                message.setPayload(sum + "");
                result = message;
        ]]></scripting:script>
        </scripting:transformer>
    </flow>
</mule>