Angular2 http.post: Create promise with subscribe

I´m trying do create a function, that returns a Promise as the code: (someprovider.ts)

postToPaymentApi(url:string, data:string, options:RequestOptions, order:Order):Promise<any>{
let result =  this.http.post(url, data, options).map(res => res.json())
  .subscribe(data => {
    // all my logic here!
    });
  }, error => {
    console.log(error)
  })

  return new Promise((resolve)=>{
    resolve(result)
  })

}

The problem is, when I call this function, I do not get the data, because this post take a few seconds to finish and I get the promise before the post finish.

this.postToPaymentApi(url, data, options, order).then(data => {
    console.log(data);
  })

What Am I doing wrong?