TYPO3: Add linked-in share url to for specific link

30 = TEXT
30 {
    if.isTrue.field = field_social_media_link
    value = Share on linkedin
    typolink {
        parameter.cObject = COA
        parameter.cObject {
            # default url
            10 = TEXT
            10.value = http://www.linkedin.com/shareArticle?mini=true

            # add url
            20 = TEXT
            20 {
                field = field_social_media_link
                wrap = &url=|
                rawUrlEncode = 1
            }
            # add title
            30 = TEXT
            30 {
                field = field_title
                wrap = &title=|
                rawUrlEncode = 1
            }
        }
        ATagParams = class="linkedin-sharing"
    }
}