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POmule's http-proxy cannot be used in flow?
 

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    <p>I would like to do a proxy for backend rest service, but before I forward the request to backend, I need to do some checks. I checked the docments, there is a http-proxy can be used to do the proxy, but when I put into the flow, there are exceptions. If I use the http:outbound-endpoint the method cannot be a dynamic MEL expression(rest method could be POST, GET, PUT, DELTE etc).</p> <p>Could you give me a suggestion? An example will be better, Thanks a lot. My Configuration:</p> <pre><code>&lt;flow name="demo.routerFlow1" doc:name="demo.routerFlow1"&gt; &lt;http:inbound-endpoint exchange-pattern="request-response" host="localhost" port="8080" doc:name="HTTP" /&gt; &lt;logger message="Method: #[message.inboundProperties['http.method']], URI: #[message.inboundProperties['http.request.path']], Params: #[message.inboundProperties['http.query.params']]" level="INFO" doc:name="Logger" /&gt; &lt;http:body-to-parameter-map-transformer doc:name="Body to Parameter Map" /&gt; &lt;choice doc:name="Choice"&gt; &lt;when expression="(payload['timestamp'] == null || payload['nonce'] == null)"&gt; &lt;expression-component doc:name="Check Required Params"&gt;&lt;![CDATA[payload="{\"code\":\"PA001\", \"message\":\"missing required parameter timestamp and nonce\"}"]]&gt; &lt;/expression-component&gt; &lt;/when&gt; &lt;otherwise&gt; &lt;choice doc:name="Choice"&gt; &lt;when expression="!replayAttackCheck.validate(payload)" evaluator="groovy"&gt; &lt;expression-component doc:name="Check Required Params"&gt;&lt;![CDATA[payload="{\"code\":\"PA002\", \"message\":\"timestamp or nonce is illegal\"}"]]&gt; &lt;/expression-component&gt; &lt;/when&gt; &lt;otherwise&gt; &lt;processor-chain doc:name="Processor Chain"&gt; &lt;pattern:http-proxy name="http-proxy-sample"&gt; &lt;!--line 38--&gt; &lt;http:inbound-endpoint address="http://localhost:8080/"&gt;&lt;/http:inbound-endpoint&gt; &lt;http:outbound-endpoint address="http://localhost:8081/"&gt;&lt;/http:outbound-endpoint&gt; &lt;/pattern:http-proxy&gt; &lt;/processor-chain&gt; &lt;/otherwise&gt; &lt;/choice&gt; &lt;/otherwise&gt; &lt;/choice&gt; &lt;/flow&gt; </code></pre> <p>Error:</p> <pre><code>Caused by: org.xml.sax.SAXParseException; lineNumber: 38; columnNumber: 31; cvc-complex-type.2.4.b: The content of element 'processor-chain' is not complete. One of '{"http://www.mulesoft.org/schema/mule/core":annotations, "http://www.mulesoft.org/schema/mule/core":description, "http://www.mulesoft.org/schema/mule/core":abstract-message-processor, "http://www.mulesoft.org/schema/mule/core":abstract-outbound-endpoint, "http://www.mulesoft.org/schema/mule/core":abstract-mixed-content-message-processor}' is expected. at org.apache.xerces.util.ErrorHandlerWrapper.createSAXParseException(Unknown Source) </code></pre>
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