How to put a result.json() in a variable

Hi! I’m doing this tutorial in a web page (https://www.digitalocean.com/community/tutorials/how-to-use-ejs-to-template-your-node-application-es), but I have to do it with a postgreSQL result, an async function (the “await” is already inside the function).

export const getPais = async (req:Request,res:Response): Promise<Response>=> {
try{
const response: QueryResult = await pool.query(‘SELECT * FROM paises’);

    return res.status(200).json(response.rows);

}catch(e){
    console.log(e);
    return res.status(500).json('Error Interno');
}
}

¿How can I put it in a variable?

Thank you.