http://domainname/api/v1:id

{ elemetnt {  id, name } }

let queryParam = `{ elemetnt {  id, name } }`;
    this.http.post(`http://domainname/api/v1:1`, {

                query: queryParam,



            }, {
                    headers: new Headers({
                        'Content-Type': 'application/graphql',
                    }),
                })
                .catch((error: Response | any) => {

                    console.log(error);
                    return Observable.of(error);
                })
                .subscribe((res) => {

                    console.log(JSON.stringify(res));

                });

queryParam= { element : { id: "0000" , name: "name" };

{"query":"{ elemetnt {  id, name } }" }