<sleep>

<?xml version="1.0" encoding="UTF-8"?>
<config xmlns="http://org.webharvest/schema/2.1/core">
<loop item="url" maxloops="100">
  <tokenize>${urls}</tokenize>
  
  <http url="${url}"/>
  
  <!-- Wait 2 seconds between requests -->
  <sleep milliseconds="2000"/>
</loop>
</config>

<?xml version="1.0" encoding="UTF-8"?>
<config xmlns="http://org.webharvest/schema/2.1/core">
<def var="retryCount" value="0"/>
<def var="success" value="false"/>

<while condition="${!success && retryCount < 5}">
  <def var="response">
    <http url="https://api.example.com/data"/>
  </def>
  
  <if condition="${empty(response)}">
    <!-- Exponential backoff: 1s, 2s, 4s, 8s, 16s -->
    <def var="delay">
      <script>Math.pow(2, parseInt(context.getVar("retryCount"))) * 1000</script>
    </def>
    <sleep milliseconds="${delay}"/>
    <def var="retryCount">
      <script>parseInt(context.getVar("retryCount")) + 1</script>
    </def>
  </if>
  <else>
    <def var="success" value="true"/>
  </else>
</while>
</config>

<?xml version="1.0" encoding="UTF-8"?>
<config xmlns="http://org.webharvest/schema/2.1/core">
<!-- API allows 10 requests per minute -->
<loop item="endpoint" maxloops="10">
  <tokenize>${endpoints}</tokenize>
  
  <http url="https://api.example.com/${endpoint}"/>
  
  <!-- 6 seconds = 10 requests/minute -->
  <sleep milliseconds="6000"/>
</loop>
</config>