Request Multiple URLS

Description

Fetches an array of URLS that contain JSON data

Usage

Basic usage:

const requestMutlipleUrls = require("../index");

// Example parsing
const parseResults = (result) =>
  result.map((item) =>
    item.status === "fulfilled" ? JSON.parse(item.value) : item
  );

requestMutlipleUrls(urls).then((result) => {
  const parsed = parseResults(result);
  // use the returned data!
});

Also check tests/index.spec.js for examples of error handling.

Error States

• The package will try to return valid data even when errors are thrown (e.g. an invalid URL)
• Errors are returned at the same index as the passed url that has caused them
• If the Promise status is "rejected" then the returned reason will contain the Error

Testing

To run tests npm test

Assumptions

• The user would like to receive all available data even if some passed URLs don't return data or throw errors

Choice of Dependencies

This package uses node-fetch because it is lightweight and gives access to window.fetch which is widely implemented across browsers.

Next Steps

• Research errors that may be thrown that I haven't thought of
• Include option in the package to parse the JSON before returning the data (basically put the parseResults function from index.spec.jsin the package so it can be used)
• Handle lack of network connection better for tests
• Add an option to force an error to be thrown if one url doesn't return data