The Fetch API is a modern interface that allows you to make HTTP requests to servers from web browsers. If you have worked with XMLHttpRequest (XHR) object, the Fetch API can perform all the tasks as the XHR object does. In addition, the Fetch API is much simpler and cleaner. This 500-piece jigsaw puzzle from Buffalo Games is titled Fetch! In this amusing image, a dog dives down underwater in search of its tennis ball. This Golden Retriever is determined to do what it does best retrieve a ball! Every Buffalo Games jigsaw puzzle is manufactured in the U.S.A. From recycled puzzle board.
Quiz: What does this call to the web’s new
fetch()
Detectx swift 1 044 – security and troubleshooting tool. API do? Launchcontrol 1 42 1.Fetch Catch 500 Error
If you’re like me, you might assume this code logs “error” when run—but it actually logs “ok”.
This expectation probably comes from years of jQuery development, as jQuery’s
ajax()
method invokes its fail
handler when the response contains a failed HTTP status code. For example, the code below logs “error” when run:Why does fetch()
work this way?
Per MDN, the
fetch()
API only rejects a promise when a “network error is encountered, although this usually means permissions issues or similar.” Basically fetch()
will only reject a promise if the user is offline, or some unlikely networking error occurs, such a DNS lookup failure.The good is news is
fetch
provides a simple ok
flag that indicates whether an HTTP response’s status code is in the successful range or not. For instance the following code logs “Error: Internal Server Error(…)”:To keep this code DRY and reusable, you probably want to create a generic error handling function you can use for all of your
fetch()
calls. The following code refactors the error handling into a handleErrors()
function:For added fun you can use ES6 arrow functions to make the callback formatting a little less verbose:
Parting thoughts
Although I still don’t like
fetch()
’s lack of rejecting failed HTTP status codes, over time fetch()
’s behavior has grown on me—mostly because it gives me more control over how I handle individual problems. Plus, the composable nature of fetch()
makes it fairly trivial to manually handle errors without adding a bunch of verbose code.Overall I think it’s worth taking few minutes to play with
fetch()
, even if it’s just to see what you think. It’s certainly a far more readable alternative to XMLHttpRequest. If you happen to be building NativeScript apps, you might not know that you can use fetch()
today without any need for a polyfill or fallback. And something about using fetch()
to perform HTTP requests in native Android and iOS apps is just plain cool :)This article was updated on September 15th, 2015 to use a simpler
handleErrors()
function based on a comment from Jake Archibald.Fetch 500 Piece Jigsaw Puzzle
Bob Closs and William Wilcox founded Fetch Logistics in 1997. As the company grew, partner Bob Atwater came on board in 2001, and in 2012, our longtime VP of Sales, Dave Bryk, became our fourth partner.
Within 5 years of opening, Fetch Logistics earned a place on the Inc. magazine list of 500 fastest growing privately held companies in America and maintained this honor for four consecutive years. Fetch has evolved into a premier transportation provider servicing Fortune 500 companies as well as smaller emerging businesses throughout the United States and Canada.
Our Mission:
Fetch 500 Error
We have the capacity, talented and dedicated staff, financial strength, resources and experience to handle all of your transportation needs. Our goal is to use those resources to provide top-notch customer service Keycue 7 3 – displays all menu shortcut commands. to our client carriers and shippers.
Go Fetch and Get Connected.
Fetch Logistics maintains one of the nation’s largest networks of motor carrier capacity. We partner with only high quality carriers who have undergone a thorough and comprehensive screening process. We monitor and grade carrier performance continuously to ensure the highest level of transportation service to our customers.
We create the most cost-effective transportation solutions for our customers and we take care of every detail—from the initial quotation to the completed delivery of your product—so you don’t have to.