Legacy code using WebServer broke. Anyone have insight?

[kbola]

Hi There,

I've inherited a legacy firmware project that runs well on previously shipped devices, but the same code built now does not. I do not have information about the version of this library that was used before.

I'm not reporting this as an issue, more so looking for insight on a technique that a past programmer used successfully but now doesn't work on my setup.

Namely we receive a 'Not found' when handling the 'set' request below but 'restart' works. I suspect that the culprit is the curly brackets used to indicate a wildcard input -- was this something that was formerly supported? Or could this be a compiler difference? Or something else that has changed in the 3-4 years since the older firmware was shipped?

server.on("/restart", handleRestart);
server.on("/set/{}", handleSet);

We're building from the Arduino IDE 1.8.19
Tried this with Arduino-esp32 version 1.05, 1.06, and the latest stable release.

Any insight would be much appreciated! I'd love to get it running as it did before making changes as I suspect a library or compiler issue is the cause.

Cheers

[mrengineer7777]

I'm not familiar with a wildcard option. The curly brackets look wrong there. Does it work if you remove them? Are you using the WebServer built into Arduino-esp32, or a third party library like ESPAsyncWebserver?
Normally URL parameters are passed with a question mark www.test.com?name=Adam