ClickHouse/tests/integration/test_dictionary_custom_settings/configs/dictionaries/HTTPSourceConfig.xml

<clickhouse>
    <dictionary>
        <name>test_http</name>
        <source>
            <http>
                <url>http://localhost:5555/source.csv</url>
                <format>CSVWithNames</format>
                <credentials>
                    <user>foo</user>
                    <password>bar</password>
                </credentials>
                <headers>
                    <header>
                        <name>api-key</name>
                        <value>secret</value>
                    </header>
                </headers>
            </http>

            <settings>
                <format_csv_allow_single_quotes>0</format_csv_allow_single_quotes>
                <format_csv_allow_double_quotes>0</format_csv_allow_double_quotes>
            </settings>

        </source>

        <lifetime>600</lifetime>

        <layout>
            <flat/>
        </layout>

        <structure>
            <id>
                <name>id</name>
            </id>
            <attribute>
                <name>first</name>
                <type>String</type>
                <null_value></null_value>
            </attribute>
            <attribute>
                <name>second</name>
                <type>String</type>
                <null_value></null_value>
            </attribute>
            <attribute>
                <name>third</name>
                <type>String</type>
                <null_value></null_value>
            </attribute>
        </structure>
    </dictionary>
</clickhouse>