List all categories of an incoming invoice

GET /api/incoming-categories
<?xml version="1.0" encoding="UTF-8"?>
<incoming-categories type="array" page="1" per_page="100" total="71">
    <incoming-category>
        ...
    </incoming-category>
    <incoming-category>
        ...
    </incoming-category>
</incoming-categories>

Get a single category

GET /api/incoming-categories/{id}
<?xml version="1.0" encoding="UTF-8"?>
<incoming-category>
    <id>goods</id>
    <title>Goods, raw materials, auxiliary materials</title>
    <description>Finished products or expenditures for product components</description>
</incoming-category>