text: // @flow
  import * as c from './constants';
  import {buildQueryStringFromParams, joinUrlAndQueryString} from 'insomnia-url';
  import {responseToObject, authorizeUserInWindow} from './misc';
  
  export default async function (
    requestId: string,
    authorizationUrl: string,
    clientId: string,
    redirectUri: string = '',
    scope: string = '',
    state: string = ''
  ): Promise<Object> {
    const params = [
      {name: c.P_RESPONSE_TYPE, value: c.RESPONSE_TYPE_TOKEN},
      {name: c.P_CLIENT_ID, value: clientId}
    ];
  
    // Add optional params
    redirectUri && params.push({name: c.P_REDIRECT_URI, value: redirectUri});
    scope && params.push({name: c.P_SCOPE, value: scope});
    state && params.push({name: c.P_STATE, value: state});
  
    // Add query params to URL
    const qs = buildQueryStringFromParams(params);
    const finalUrl = joinUrlAndQueryString(authorizationUrl, qs);
  
    const redirectedTo = await authorizeUserInWindow(finalUrl, /(access_token=|error=)/);
    const fragment = redirectedTo.split('#')[1];
  
    if (fragment) {
      return responseToObject(fragment, [
        c.P_ACCESS_TOKEN,
        c.P_TOKEN_TYPE,
        c.P_EXPIRES_IN,
        c.P_SCOPE,
        c.P_STATE,
        c.P_ERROR,
        c.P_ERROR_DESCRIPTION,
        c.P_ERROR_URI
      ]);
    } else {
      // Bad redirect
      return {};
    }
  }
  