Creates a response with data exposed and other response attributes exposed as readonly. This format will avoid having to access response.data in order to get the data. Imagine we have a HTTP with response promise as follow:

"data": {
  "shi": "ming",
  "foo": "bar",
 "me": "zot"
},
"headers": {
  ...
}

To access data in the promise you have to do something like:

Reket.get('/my/url').then((response) => {
  const foo = response.data.foo;
  // or const { foo } = response.data;
  // and then access the headers
  const headers = response.headers;
});

With ReketResponse format it's possible to get directly foo from response like so:

Reket.get('/my/url').then((response) => {
  const foo = response.foo;
  // or const { foo } = response;
  // and then access the headers
  const headers = response.getHeaders;
});

Represent a Reket response structure base. Non readonly attributes depend of the HTTP call.