build: ensure to handle common statuses

README.md

@@ -10,7 +10,7 @@ Given an URL, it will be resolved fastest as possible.
 
 It will be performing different HTTP requests in parallel (GET, HEAD) and it will return the first response to respond.
 
-Because of that, don't use this module for consume `body` because it not always be available.
+Don't use this module for consuming `body` since it isn't always be available.
 
 ## Install
 

index.js

@@ -16,17 +16,35 @@ const createRequest = method => async (url, opts) => {
     redirectStatusCodes.push(res.statusCode)
   })
 
-  const { value: response = {} } = await pReflect(
+  const { isFulfilled, value: response = {}, reason: error } = await pReflect(
     pTimeout(req, opts.timeout || Infinity)
   )
 
-  return { ...response, redirectUrls, redirectStatusCodes }
+  return {
+    isFulfilled,
+    value: { ...response, redirectUrls, redirectStatusCodes },
+    error
+  }
 }
 
 const fromHEAD = createRequest('head')
 const fromGET = createRequest('get')
 
-module.exports = (url, opts = {}) => {
+module.exports = async (url, opts = {}) => {
   const { href: encodedUrl } = new URL(url)
-  return pAny([fromHEAD(encodedUrl, opts), fromGET(encodedUrl, opts)])
+  const { isFulfilled, value, error } = await pAny([
+    fromHEAD(encodedUrl, opts),
+    fromGET(encodedUrl, opts)
+  ])
+
+  return isFulfilled
+    ? value
+    : {
+      redirectStatusCodes: [],
+      redirectUrls: [],
+      statusCode: error.statusCode,
+      headers: error.headers,
+      statusMessage: error.statusMessage,
+      url: error.url
+    }
 }

test/index.js

@@ -89,9 +89,23 @@ test('keep original query search', async t => {
   t.is(200, res.statusCode)
 })
 
-test('hanlde unresolved requests', async t => {
+test('hanlde 404 urls', async t => {
   const url = 'https://demo-1yr5bmtqy.now.sh/'
   const res = await reachableUrl(url, { timeout: 500 })
-  t.is(res.url, undefined)
-  t.is(res.statusCode, undefined)
+  t.is(res.url, 'https://demo-1yr5bmtqy.now.sh/')
+  t.is(res.statusCode, 404)
+})
+
+test('hanlde 201 urls', async t => {
+  const url = 'https://httpbin.org/status/201'
+  const res = await reachableUrl(url)
+  t.is(res.url, 'https://httpbin.org/status/201')
+  t.is(res.statusCode, 201)
+})
+
+test('hanlde 500 urls', async t => {
+  const url = 'https://httpbin.org/status/500'
+  const res = await reachableUrl(url)
+  t.is(res.url, 'https://httpbin.org/status/500')
+  t.is(res.statusCode, 500)
 })