How to get URL for current service health check? - asp.net-core-3.1

Question

I need some help with this item. The problem is as follows, I need to add a healthcheck to my service:
// Add the health checks.
services.AddHealthChecks()
.AddSqlServer(Configuration["ConnectionStrings:MyConnectionString"])
.AddCheck("Offices Health Check", new OfficeHealthCheck(), HealthStatus.Unhealthy)
;
For this I have the class "OfficeHealthCheck.cs" which implements IHealthCheck and defines the following function:
private async Task<bool> GetOffices()
{
bool isHealthy = false;
Uri apiUri = new Uri("http://localhost:58355/api/offices");
using (HttpClient client = new HttpClient())
{
var result = await client.GetAsync(apiUri);
if (result.IsSuccessStatusCode)
isHealthy = true;
}
return isHealthy;
}
The problem I'm trying to solve is how to change the "localhost:58355" to the current server where I am running the service (both the healthcheck and the enpoint i'm calling are part of the same service), for example http://myproductionserver.com/api/offices or http://mystageserver.org/api/offices and so on...
I read some articles that mentioned adding a singleton with , but I have failed to implement IHttpContextAccessor correctly. I have added the singleton and added the part in the object as follows:
public class OfficeHealthCheck : IHealthCheck
{
private readonly IHttpContextAccessor _httpContextAccesor;
public RegionHealthCheck(IHttpContextAccessor httpContextAccessor) {
_httpContextAccesor = httpContextAccessor
}
But now its asking me to pass an instance of IHttpContextAccessor to the constructor in this line which I don't know how to do:
// Add the health checks.
.AddCheck("Offices Health Check", new OfficeHealthCheck()
;
Any help would be appreciated

Answer 1

Change this:
// Add the health checks.
.AddCheck("Offices Health Check", new OfficeHealthCheck()
To this:
// Add the health checks.
.AddCheck<OfficeHealthCheck>("Offices Health Check")