Hi,
I follow the instructions as per given in the website and also clone these github repo. when I try to run the main file after the build, it shows error as like run time error.
I hereby attached the error as below.
kindly let me know to resolve this issue !

Hi @bmf-san
I am getting some warnings in the code which point to line 93 @ server.go:

    for _, backend := range cfg.Backends {

The warning spew points to the Backend struct:

type Backend struct {
	URL    string `json:"url"`
	IsDead bool
	mu     sync.RWMutex
}

Fix: The sync.RWMutex variable should be embedded into a pointer.

	mu     *sync.RWMutex

Since we are assigning a temp var as backend, which holds the object of the used in the loop. The issue arises here, since we are holding a value of the mutex, and not the actual reference to the Mutex. Granted, we don't use the Mutex anywhere in the range in the healthcheck function, so we don't run into problems.

Feel free to correct me, if I am wrong 🙂