writing http headers in onData event

[hb27]

Hi,

I am setting the http status and header values (content type etc) based on the http body content in the request.
I have an internal handler that processes the http body.
The following discussion suggests the use of onData() call back to access http body data.
#805

When I write the status using:

res->OnData([res](auto data, bool){
 res->writeStatus("200 OK");
});

The application crashes with a memory error. The error message relates to HttpResponse Status memory location access.
If I set the status outside of onData, the handler exits without errors.

Is there anyway to keep all of the response object's memory alive until OnData has exited.

Thank you,

[uNetworkingAB]

The application crashes with a memory error.

You need to use AddressSanitixzer to sanitize your app

[hb27]

HI Thanks,

I was actually passing the res* pointer to the lambda by reference &. It probably ran out of scope by the time onData was called back. I switched it to pass by value [res] and it no longer crashes

[uNetworkingAB]

You captured a reference to the stack allocated pointer to the heap allocated HttpResponse. AddressSanitizer would mark this