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    <p>Inbound endpoints are message sources and can not be parametrized the way you're describing.</p> <p>To achieve your goal, trying a <code>&lt;poll&gt;</code> message source to wrap a <code>foreach</code> that uses <code>http:outbound-endpoint</code> to perform <code>GET</code> (@method) <code>request-response</code> (@exchange-apttern) interactions.</p> <p>The trick is to bring the results for the HTTP calls back through the <code>foreach</code>, which by default do not do it. The following illustrate a potential approach:</p> <pre><code>&lt;flow name="foreachFlow1"&gt; &lt;poll frequency="2000"&gt; &lt;processor-chain&gt; &lt;set-variable variableName="httpResponses" value="#[[]]" /&gt; &lt;foreach collection="#[groovy:['localhost:8082', 'localhost:8083']]"&gt; &lt;http:outbound-endpoint exchange-pattern="request-response" address="http://#[payload]" method="GET" /&gt; &lt;expression-component&gt;httpResponses.add(message.payloadAs(java.lang.String)) &lt;/expression-component&gt; &lt;/foreach&gt; &lt;/processor-chain&gt; &lt;/poll&gt; &lt;logger level="INFO" message="#[httpResponses]" /&gt; &lt;/flow&gt; &lt;!-- Test server stubs --&gt; &lt;flow name="server8082"&gt; &lt;http:inbound-endpoint exchange-pattern="request-response" address="http://localhost:8082" /&gt; &lt;set-payload value="This is 8082" /&gt; &lt;/flow&gt; &lt;flow name="server8083"&gt; &lt;http:inbound-endpoint exchange-pattern="request-response" address="http://localhost:8083" /&gt; &lt;set-payload value="This is 8083" /&gt; &lt;/flow&gt; </code></pre>
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    1. POIterating an array using Mule's foreach scope
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    1. USDavid Dossot
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    1. CO@davis I tried using the example from my previous question and used a <poll> message source to wrap the foreach but I get the error "Invalid content was found starting with element 'poll'". I edited my original question and put the code there
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    2. CORemove the `<http:inbound-endpoint>`: you can only have one message source per flow and `poll` is a message source.
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    3. COI forgot to show the commented out <http:inbound-endpoint> but even after removing it I still get the error.
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