void call(Map config = [:], String packageName) {
    publishURL = [ config.nexusBase, config.nexusRepository, config.nexusRepoPath, packageName ].join('/')
    echo "Info: ${publishURL}"

    withCredentials([usernameColonPassword(credentialsId: 'publisher', variable: 'NEXUS_PUBLISH')]) {
        response = httpRequest httpMode: 'POST',
        contentType: 'multipart/form-data',
        url: publishURL,
        wrapAsMultipart: true,
        customHeaders: [
          [name: 'Authorization', value: 'Basic ' + "${env.NEXUS_PUBLISH}".bytes.encodeBase64()]
        ],
        requestBody: [$class: 'FileRequestBody', file: packageName]

        echo "Response: ${response.content}"
    }
}