webapi.xml

<?xml version="1.0"?>
<!--
/**
 * Copyright © Magento, Inc. All rights reserved.
 * See COPYING.txt for license details.
 */
-->
<routes xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="urn:magento:module:Magento_Webapi:etc/webapi.xsd">

    <route method="GET" url="/V1/testmodule1/overwritten">
        <service class="Magento\TestModule1\Service\V1\AllSoapAndRestInterface" method="item" />
        <resources>
            <resource ref="Magento_TestModule1::resource1" />
        </resources>
        <data>
            <parameter name="itemId" force="true">-55</parameter>
        </data>
    </route>

    <route method="POST" url="/V1/testmodule1/testOptionalParam">
        <service class="Magento\TestModule1\Service\V1\AllSoapAndRestInterface" method="testOptionalParam" />
        <resources>
            <resource ref="Magento_TestModule1::resource1" />
        </resources>
        <data>
            <parameter name="name">Default Name</parameter>
        </data>
    </route>

    <route method="GET" url="/V1/testmodule1/:itemId">
        <service class="Magento\TestModule1\Service\V1\AllSoapAndRestInterface" method="item" />
        <resources>
            <resource ref="Magento_TestModule1::resource1" />
        </resources>
    </route>
    <route method="GET" url="/V1/testmodule1">
        <service class="Magento\TestModule1\Service\V1\AllSoapAndRestInterface" method="items" />
        <resources>
            <resource ref="Magento_TestModule1::resource2" />
        </resources>
    </route>
    <route method="POST" url="/V1/testmodule1">
        <service class="Magento\TestModule1\Service\V1\AllSoapAndRestInterface" method="create" />
        <resources>
            <resource ref="Magento_TestModule1::resource3" />
        </resources>
    </route>
    <route method="PUT" url="/V1/testmodule1/:itemId">
        <service class="Magento\TestModule1\Service\V1\AllSoapAndRestInterface" method="update" />
        <resources>
            <resource ref="Magento_TestModule1::resource1" />
            <resource ref="Magento_TestModule1::resource2" />
        </resources>
    </route>
    <route method="GET" url="/V1/testmodule1/resource1/:itemId">
        <service class="Magento\TestModule1\Service\V1\AllSoapAndRestInterface" method="item" />
        <resources>
            <resource ref="anonymous" />
        </resources>
    </route>
    <route method="POST" url="/V1/testmodule1/itemAnyType">
        <service class="Magento\TestModule1\Service\V1\AllSoapAndRestInterface" method="itemAnyType" />
        <resources>
            <resource ref="Magento_TestModule1::resource1" />
            <resource ref="Magento_TestModule1::resource2" />
        </resources>
    </route>
    <route method="GET" url="/V1/testmodule1/itemPreconfigured">
        <service class="Magento\TestModule1\Service\V1\AllSoapAndRestInterface" method="getPreconfiguredItem" />
        <resources>
            <resource ref="Magento_TestModule1::resource1" />
            <resource ref="Magento_TestModule1::resource2" />
        </resources>
    </route>
    <route method="GET" url="/V2/testmodule1/:id">
        <service class="Magento\TestModule1\Service\V2\AllSoapAndRestInterface" method="item" />
        <resources>
            <resource ref="Magento_TestModule1::resource1" />
        </resources>
    </route>
    <route method="GET" url="/V2/testmodule1">
        <service class="Magento\TestModule1\Service\V2\AllSoapAndRestInterface" method="items" />
        <resources>
            <resource ref="Magento_TestModule1::resource2" />
        </resources>
    </route>
    <route method="POST" url="/V2/testmodule1">
        <service class="Magento\TestModule1\Service\V2\AllSoapAndRestInterface" method="create" />
        <resources>
            <resource ref="Magento_TestModule1::resource3" />
        </resources>
    </route>
    <route method="PUT" url="/V2/testmodule1/:id">
        <service class="Magento\TestModule1\Service\V2\AllSoapAndRestInterface" method="update" />
        <resources>
            <resource ref="Magento_TestModule1::resource1" />
            <resource ref="Magento_TestModule1::resource2" />
        </resources>
    </route>
    <route method="DELETE" url="/V2/testmodule1/:id">
        <service class="Magento\TestModule1\Service\V2\AllSoapAndRestInterface" method="delete" />
        <resources>
            <resource ref="Magento_TestModule1::resource1" />
        </resources>
    </route>
</routes>