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@dfar-io

dfar-io/loggly-endpoint.cs

Last active Jun 15, 2020
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A .NET Core Azure function that forwards EventHub events to a Loggly endpoint
#r "Microsoft.Azure.EventHubs"
using System;
using System.Text;
using Microsoft.Azure.EventHubs;
public static async Task Run(EventData[] events, ILogger log)
{
var exceptions = new List<Exception>();
foreach (EventData eventData in events)
{
try
{
string messageBody = Encoding.UTF8.GetString(eventData.Body.Array, eventData.Body.Offset, eventData.Body.Count);
log.LogInformation($"message body: {messageBody}");
// Replace these two lines with your processing logic.
var client = new HttpClient();
var content = new StringContent(messageBody, Encoding.UTF8, "application/json");
var response = await client.PostAsync("LOGGLY_ENDPOINT", content);
response.EnsureSuccessStatusCode();
}
catch (Exception e)
{
// We need to keep processing the rest of the batch - capture this exception and continue.
// Also, consider capturing details of the message that failed processing so it can be processed again later.
exceptions.Add(e);
}
}
// Once processing of the batch is complete, if any messages in the batch failed processing throw an exception so that there is a record of the failure.
if (exceptions.Count > 1)
throw new AggregateException(exceptions);
if (exceptions.Count == 1)
throw exceptions.Single();
}
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