Node-RED block in Snap4City Microservice library node-red-contrib-snap4city-user is "get-anonymous-data">
    <p>It allows to retrieve data entered in My Personal Data of people who have made them anonymous and public.</p>

    <h3>Inputs</h3>
    A JSON with these parameters:

    <dl class="message-properties">
        <dt>variablename
            <span class="property-type">string</span>
        </dt>
        <dd>The name of the variable you want to retrieve</dd>
        <dt>motivation
            <span class="property-type">string</span>
        </dt>
        <dd>The reason you entered earlier for saving the data</dd>
        <dt>startdate
            <span class="property-type">date</span>
        </dt>
        <dd>Start date of the data search period</dd>
        <dt>enddate
            <span class="property-type">date</span>
        </dt>
        <dd>End date of the data search period</dd>
        <dt>Last
            <span class="property-type">number</span>
        </dt>
        <dd>If selected, it only retrieves the last n (where n is the value inserted) data of the inserted period</dd>
    </dl>

    <h3>Outputs</h3>
    <dl class="message-properties">
        <dd> Returns an array containing the public data that have been saved in the search period</dd>
    </dl>

    <h3>Details</h3>
    <p>The node can receive a JSON with the parameters described in the Inputs section and with them generate the output JSON.
        If the values are not present in the input JSON, these are read by those in the configuration. If they are not present
        in either part, an error is generated for the necessary parameters.</p>