public static async Task WaitForReady(this INeo4jInstance instance, CancellationToken token)
{
if (instance == null)
{
return;
}
Console.WriteLine("Waiting for Neo4j...");
while (true)
{
if (token.IsCancellationRequested)
{
token.ThrowIfCancellationRequested();
}
var ready = await instance.IsReady();
if (ready)
{
Console.WriteLine("Neo4j is up");
return;
}
Console.WriteLine("Waiting 1 second...");
await Task.Delay(1000, token);
}
}
public static async Task <bool> IsReady(this INeo4jInstance instance)
{
var endpoint = instance.Endpoints.HttpsEndpoint ?? instance.Endpoints.HttpEndpoint;
var uriBuilder = new UriBuilder(endpoint);
if (uriBuilder.Path.EndsWith("/"))
{
uriBuilder.Path += "db/data/";
}
else
{
uriBuilder.Path += "/db/data/";
}
try
{
var request = WebRequest.Create(uriBuilder.Uri);
var response = await request.GetResponseAsync();
var httpWebResponse = (HttpWebResponse)response;
return(httpWebResponse.StatusCode == HttpStatusCode.OK);
}
catch (WebException)
{
return(false);
}
}
