JavaScript Tip: Handling a Failed HTTP Request with fetch

In this tutorial we wrap up our discussion of fetch. We take a look at how to handle a failed HTTP request. By default it doesn't produce an error that promises can respond to, so we need to use a different technique.

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[rickyu]

Your tutorials magically appears at the right times.

[milkmanex]

You have one of the best, clearest and most pleasant sounding voice, out of all the tutorials ive watched. Thank you for this tutorial.

[tibebetech]

Thank you! Very nicely demonistrated in a very practical and applicable way.

[andrii_popov]

What if I have some payload message with error response? How can I extract it and pass further down the "then"-s? This pattern doesn't work cause 'body' is not ready yet to be extracted! Which pattern I would use in this case?

[androidetube]

I don't understand why the argument is not included when he calls "checkFetch" in the first ".then". why not "checkFetch(resp)" ?

[rickyu]

Hi, how would i retry a fetch if the catch block? retry 3 times with backing off? thank you.

[souravarefin]

Failed to execute 'fetch' on 'Window': Invalid name, , whats the solution of this

[mnageh-bomm]

how can i do this in xmlhttp request !

[jamesancliffe]

hey there, thank you for your assistance. however i am new, disabled, memory issues and a few things. may i make a request regarding this issue?

I have downloaded on my iMac desktop computer The Elderscrolls Online Client for iMac, and upon installation, it freezes and does not even start downloading and gives this error message, stating HTTP Request Failed.

do you have any help in dealing with issue?