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    <from uri="direct:in"/>
    <setHeader headerName="firstName">
        <expression language="jaskel">user.firstName</expression>
    </setHeader>
    <to uri="seda:users"/>

You can also use predicates e.g. in a Filter:

    <filter>
        <language language="beanshell">request.getHeaders().get("Foo").equals("Bar")</language>
        <to uri="direct:next" />
    </filter>

Some languages with DSL support include:

Some languages without specific DSL support but known to work with these generic methods include:

Dependencies

To use scripting languages in your camel routes you need to add the a dependency on camel-script which integrates the JSR-223 scripting engine.

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