Pause/stop and resume webserver

[vatsake]

I would like to prevent webserver requests during some heavy memory usage operations.

I'm calling server.end(); at operation start
and server.begin(); at operation end.

4/10 times, the webserver does not start.

[mathieucarbou]

I would like to prevent webserver requests during some heavy memory usage operations.

ending and beginning won't help much because free the memory.

Maybe try instead to completely delete the ESPAsyncWebServer:

ESPAsyncWebServer* pointer = new ESPAsyncWebServer(80);

server.end();
delete pointer;

An then fully recreate it.

But this is hardly an advises solution if you have memory pressure...

If you have memory pressure, probably you need to look at what cause them instead in your code or if something can be improved elsewhere. ESPAsyncWebServer is not what takes the more heap, but much more how you use it instead,

In any case, a better approach to pause request serving would be to add a middleware. You can look at the examples in the project about how to create one and an idea could be to base your middleware on the Rate Limiter one.

[vatsake]

I'm doing a https request which returns a "large" payload. Can't improve it much.

Oh a middleware is a good idea, gonna try that.

[vatsake]

This works ok.