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Add retry policy for 429 responses

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Alexey Golub
2018-06-28 00:20:31 +03:00
parent e3eac10fb8
commit 49f39c7097
4 changed files with 26 additions and 11 deletions
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29
DiscordChatExporter.Core/Services/DataService.cs
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@@ -7,6 +7,7 @@ using DiscordChatExporter.Core.Exceptions;
using DiscordChatExporter.Core.Models;
using Newtonsoft.Json.Linq;
using DiscordChatExporter.Core.Internal;
using Polly;
namespace DiscordChatExporter.Core.Services
{
@@ -25,20 +26,28 @@ namespace DiscordChatExporter.Core.Services
foreach (var parameter in parameters)
url += $"&{parameter}";
// Create request policy
var policy = Policy
.Handle<HttpErrorStatusCodeException>(e => (int) e.StatusCode == 429)
.WaitAndRetryAsync(10, i => TimeSpan.FromSeconds(0.4));
// Send request
using (var response = await _httpClient.GetAsync(url))
return await policy.ExecuteAsync(async () =>
{
// Check status code
// We throw our own exception here because default one doesn't have status code
if (!response.IsSuccessStatusCode)
throw new HttpErrorStatusCodeException(response.StatusCode);
using (var response = await _httpClient.GetAsync(url))
{
// Check status code
// We throw our own exception here because default one doesn't have status code
if (!response.IsSuccessStatusCode)
throw new HttpErrorStatusCodeException(response.StatusCode, response.ReasonPhrase);
// Get content
var raw = await response.Content.ReadAsStringAsync();
// Get content
var raw = await response.Content.ReadAsStringAsync();
// Parse
return JToken.Parse(raw);
}
// Parse
return JToken.Parse(raw);
}
});
}
public async Task<Guild> GetGuildAsync(string token, string guildId)