fetchHelper

npm i @hacknlove/fetchhelper

Polymorphic fetch helper that allows you to pass the parameters in many ways, and brings you the response conveniently processed for your REST APIs, with no dependences and less than 600 bytes.

Parameters

As usual fetchHelper(url, options)

Same as calling fetch(url, options)

As an array fetchHelper([url, options])

Same as calling fetch(url, options)

Promise that will resolve in url fetchHelper(promise, options)

Same as calling fetch(await promise, options)

Promise that will resolve in [url, options] fetchHelper(promise)

Same as calling fetch(await promise)

Callfront that will return url fetchHelper(callfront, options)

Same as calling fetch(callfront(), options)

Callfront that will return [url, options] fetchHelper(callfront)

Same as calling fetch(callfront())

Callfront that will return a promise that will resolve to url fetchHelper(callfront, options)

Same as calling fetch(await callfront(), options)

Callfront that will return a promise that will resolve to [url, options] fetchHelper(callfront)

Same as calling fetch(await callfront())

options.json

It sets the body to JSON.stringify(options.json), and the Content-Type to application/json

Return

It returns a promise that will resolve to [response, error], and never rejects

If fetch rejects to error

[null, error]

When

If fetch resolves to {ok: false, .....}

[null, {ok: false, .....}]

If fetch resolves to {ok: true, ....}

[await response.json(), udefined]

If json has error

[null, json]

Isomorphic

You can install the polyfill you want, or you can assign the fetch you like to fetchHelper.fetch

import myFetchLibrary from 'myfetchlibrary'
import fetchHelper from '@hacknlove/fetchhelper'

fetchHelper.fetch

test this module

git clone https://github.com/hacknlove/fetchHelper.git
cd fetchHelper
npm install
npm test

mock

I recomend to mock fetch instead