index.js
function cancelCampaign(callback, id){
    if (id===undefined) {
        return callback(returnError('Empty campaign id'));
    }
    sendRequest( 'campaigns/' + id, 'DELETE', {}, true, callback );
}
function cancelCampaign(callback, id){
    if (id===undefined) {
        return callback(returnError('Empty campaign id'));
    }
    sendRequest( 'campaigns/' + id, 'DELETE', {}, true, callback );
}
function cancelCampaign ( callback , id ) { if ( id === undefined ) { return callback ( returnError ( 'Empty campaign id' ) ) ; } sendRequest ( 'campaigns/' + id , 'DELETE' , { } , true , callback ) ; }
Cancel campaign

@param callback
@param id
Cancel campaign