<if>

<?xml version="1.0" encoding="UTF-8"?>
<config xmlns="http://org.webharvest/schema/2.1/core">
<def var="httpStatus" value="200"/>

<if condition="${httpStatus == '200'}">
  <file path="success.log" action="append">
    Request succeeded at ${_date}
  </file>
</if>
</config>

<?xml version="1.0" encoding="UTF-8"?>
<config xmlns="http://org.webharvest/schema/2.1/core">
<def var="response">
  <http url="https://api.example.com/data"/>
</def>

<if condition="${empty(response)}">
  <file path="errors.log" action="append">
    Failed to fetch data from API
  </file>
  <exit/>
</if>

<!-- Continue with non-empty response -->
</config>

<?xml version="1.0" encoding="UTF-8"?>
<config xmlns="http://org.webharvest/schema/2.1/core">
<def var="stock" value="5"/>

<if condition="${stock > 0}">
  <def var="status" value="In Stock"/>
</if>
<else>
  <def var="status" value="Out of Stock"/>
</else>
</config>

<?xml version="1.0" encoding="UTF-8"?>
<config xmlns="http://org.webharvest/schema/2.1/core">
<loop item="product" index="i" maxloops="100">
  <xpath expression="//product">...</xpath>
  
  <def var="price">
    <xpath expression=".//price/text()">${product}</xpath>
  </def>
  
  <!-- Only save expensive products -->
  <if condition="${price > 100}">
    <file path="expensive-products.txt" action="append">
      Product ${i}: $${price}
    </file>
  </if>
</loop>
</config>

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

<if condition="${category == 'electronics'}">
  <http url="https://example.com/electronics"/>
</if>
</config>

<?xml version="1.0" encoding="UTF-8"?>
<config xmlns="http://org.webharvest/schema/2.1/core">
<if condition="${empty(apiKey)}">
  <def var="apiKey" value="default-key"/>
</if>

<http url="https://api.example.com?key=${apiKey}"/>
</config>