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@pepfar-react-lib/http-tools

v0.1.31

Published

**Repo Owner:** Ben Guaraldi [@benguaraldi](https://github.com/benguaraldi)

Downloads

7

Readme

JavaScript Test-friendly Fetch

Repo Owner: Ben Guaraldi @benguaraldi

This is a slim layer processing HTTP calls from your front-end to your server. It comes with:

  1. Response caching to make tests ultra-fast
  2. Response mocking so you don't have to change server data with each tests. Makes tests so much faster and parallel friendly.
  3. Easy switching of users and authentication.

Installation

npm i @pepfar-react-lib/http-tools

Usage

Register server base URL

Before doing any HTTP calls you have to register your server base URL and also provide information in which environment you are (test,development,production). You can simply copy the line below:

import {apiInit} from "@pepfar-react-lib/http-tools";

apiInit('http://www.google.com/',process.env.NODE_ENV);

Using GET to retrieve data

Simple GET using a promise:

import {getData} from "@pepfar-react-lib/http-tools";

function getUsers():Promise<User[]> {
    return getData('/users').then(users=>{
            //do something
            return users;
        });
}

Simple get using await:

import {getData} from "@pepfar-react-lib/http-tools";

async function getUsers():Promise<User[]>{
    let users = await getData('/users');
    // do something
    return users;
}

Mocking server response during tests

Now imagine you are writing a test and no matter what's in the database you want the result of GET from /users to return two exact objects. It's as simple as:

import {registerGetMock} from "@pepfar-react-lib/http-tools";

const mockedResponse = [{name: 'John', name: 'Bob'}];

test('Should receive two users', async ()=> {
    registerGetMock('/users', mockedResponse);
    // now you can test your app and when your front-end code queries `/users` it will receive the `mockedResponse` from above
    screen.getByText('John');
    screen.getByText('Bob');
});