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Add polly to marketing api

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This commit is contained in:
Christian Arenas 2017-06-15 19:26:24 +02:00
parent ed7dfc7cb5
commit cd1a091b6f
1 changed files with 31 additions and 3 deletions
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34
src/Services/Marketing/Marketing.API/Startup.cs
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@ -20,6 +20,9 @@
using Infrastructure.Repositories;
using Autofac;
using Autofac.Extensions.DependencyInjection;
using Polly;
using System.Threading.Tasks;
using System.Data.SqlClient;
public class Startup
{
@ -133,10 +136,12 @@
c.SwaggerEndpoint("/swagger/v1/swagger.json", "My API V1");
});
ConfigureEventBus(app);
var context = (MarketingContext)app
.ApplicationServices.GetService(typeof(MarketingContext));
MarketingContextSeed.SeedAsync(app, loggerFactory)
.Wait();
WaitForSqlAvailabilityAsync(context, loggerFactory, app).Wait();
ConfigureEventBus(app);
}
protected virtual void ConfigureAuth(IApplicationBuilder app)
@ -166,5 +171,28 @@
eventBus.Subscribe<UserLocationUpdatedIntegrationEvent,
IIntegrationEventHandler<UserLocationUpdatedIntegrationEvent>>();
}
private async Task WaitForSqlAvailabilityAsync(MarketingContext ctx, ILoggerFactory loggerFactory, IApplicationBuilder app, int retries = 0)
{
var logger = loggerFactory.CreateLogger(nameof(Startup));
var policy = CreatePolicy(retries, logger, nameof(WaitForSqlAvailabilityAsync));
await policy.ExecuteAsync(async () =>
{
await MarketingContextSeed.SeedAsync(app, loggerFactory);
});
}
private Policy CreatePolicy(int retries, ILogger logger, string prefix)
{
return Policy.Handle<SqlException>().
WaitAndRetryAsync(
retryCount: retries,
sleepDurationProvider: retry => TimeSpan.FromSeconds(5),
onRetry: (exception, timeSpan, retry, ctx) =>
{
logger.LogTrace($"[{prefix}] Exception {exception.GetType().Name} with message ${exception.Message} detected on attempt {retry} of {retries}");
}
);
}
}
}