what if two components make requests to the same URL?

Question

what if two components make requests to the same URL?

NullVoxPopuli opened this issue 6 years ago · comments

like, if I want to use useFetch in a HoC, and that HoC gets used in a few places -- at present, fetch will be invoked once per usage

Daishi Kato · Answer 1 · Sat Feb 09 2019 06:51:58 GMT+0800 (China Standard Time)

As you might guess, this hook simply invokes fetch and it doesn't have any caching mechanism by itself. It's up to browser how it's handled. The server may respond with different contents for the same URL (imagine a counter page). Browser could cache the content with proper response headers, but I'm not sure and I didn't experiment on it.

What do you think, and what is your expectation?

Daishi Kato · Answer 2 · Sat Feb 09 2019 21:41:36 GMT+0800 (China Standard Time)

I did a bit of experiment in Chrome.

This is JSON API. It seems waiting the first one to finish and then sending the same request.

This is a static file. The second one is finished at the same time and the size is `0 B`.

Daishi Kato · Answer 3 · Mon Mar 18 2019 06:02:14 GMT+0800 (China Standard Time)

Closing this one. Feel free to reopen for further discussion.