index.js.flow

// @flow
export type Header = {
    [headerName: string]: string;
}

export type Cookies = {
    [cookieName: string]: string;
}

export type Options = {
    body?: string | {},
    credentials?: string,
    headers?: Header,
    method?: 'DELETE' | 'GET' | 'POST' | 'PUT',
    sslPinning: {
        certs: Array<string>
    },
    timeoutInterval?: number,
}

export type Response = {
    bodyString: string,
    headers: Header,
    status: number,
    url: string,
    json: () => Promise<{ [key: string]: any}>,
    text: () => Promise<string>,
}

declare export function fetch(url: string, options: Options): Promise<Response>;
declare export function removeCookieByName(cookieName: string): Promise<void>
declare export function getCookies(domain: string): Promise<Cookies>