const url = `https://wt.kpi.fei.tuke.sk/api/article`;

            fetch(url)
                .then(response =>{
                    if(response.ok){
                        return response.json();
                    }else{
                        return Promise.reject(
                        new Error(`Server answered with ${response.status}: ${response.statusText}.`));
                    }
                })
                .then(responseJSON => {

                    responseJSON.articles.forEach(article => {

                        const url = `https://wt.kpi.fei.tuke.sk/api/article/${article.id}`;

                        fetch(url)
                            .then(response =>{
                                if(response.ok){
                                    return response.json();
                                }else{
                                    return Promise.reject(
                                    new Error(`Server answered with ${response.status}: ${response.statusText}.`));
                                }
                            })
                            .then(responseJSON => {

                                console.log(responseJSON);
                                console.log(`article_content : ${responseJSON.content}`);


                            })
                            .catch (error => {

                            });

                    });


                })
                .catch (error => {

                });