private HttpRequestMessage GetInvalidationMessage(CloudflareInvalidationRequest payload)
{
var json = JsonSerializer.Serialize(payload, JsonOptions);
var body = new StringContent(json, Encoding.UTF8, "application/json");
return(new HttpRequestMessage(HttpMethod.Post, $"https://api.cloudflare.com/client/v4/zones/{_config.ZoneID}/purge_cache")
{
Content = body
});
}
public async Task InvalidateBranches(IEnumerable <string> branches)
{
if (!_enabled)
{
return;
}
var page = 0;
var paged = GetPage(branches, page);
while (paged.Any())
{
_logger.LogTrace($"Invalidating page {page} with {paged.Count()} ids");
var files = paged
.SelectMany(x => new[]
{
$"{_config.BaseUrl}/update/{x}",
$"{_config.BaseUrl}/update/{x}/changes",
$"{_config.BaseUrl}/update/{x}/updatefile"
})
.ToList();
var payload = new CloudflareInvalidationRequest
{
Files = files
};
_logger.LogTrace($"Sending to cloudflare:\n{JsonSerializer.Serialize(payload, JsonOptions)}");
var message = GetInvalidationMessage(payload);
var retries = 2;
while (retries > 0)
{
try
{
// Can't send same message twice
message = GetInvalidationMessage(payload);
var result = await _httpClient.SendAsync(message).ConfigureAwait(false);
var content = await result.Content.ReadAsStringAsync();
var resource = JsonSerializer.Deserialize <CloudflareResponse>(content, JsonOptions);
if (resource.Success)
{
break;
}
}
catch (Exception e)
{
_logger.LogError(e, "Invalidation failed");
}
_logger.LogTrace($"Invalidation failed, retrying");
retries--;
}
paged = GetPage(branches, ++page);
}
}
