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A .NET client for loggly
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readme.md

.NET Client for Loggly

A .NET client for loggly. Supporting Https, Syslog UDP and encrypted Syslog TCP transports. Install via nuget with

Install-Package loggly-csharp

Note Version 3.5 has completely broken compatibility with prior versions to bring major improvements. Any existing code targeting versions < 3.0 will require modification.

Configuration

Configuration is done via your app.config. The minimal amount config you require is to specify your customerToken:

<configuration>
  <configSections>
    <section name="loggly" type="Loggly.Config.LogglyAppConfig, Loggly.Config"/>
  </configSections>
  <loggly xmlns="Loggly" customerToken="your token here" />
</configuration>

When you get that working, take the training wheels off and go crazy:

<loggly 
  xmlns="Loggly" 
  applicationName="MyAwesomeApp" 
  customerToken="your token here" 
  isEnabled="true"
  throwExceptions="true">

  <transport logTransport="Https" endpointHostname="logs-01.loggly.com" endpointPort="443"/>

  <search account="your_loggly_account" username="a_loggly_username" password="myLittleP0ny!"/>

  <tags>
    <simple>
      <tag value="winforms"/>
    </simple>
    <complex>
      <tag type="Loggly.HostnameTag" formatter="host-{0}"/>
      <tag type="Loggly.ApplicationNameTag" formatter="application-{0}"/>
      <tag type="Loggly.OperatingSystemVersionTag" formatter="os-{0}"/>
      <tag type="Loggly.OperatingSystemPlatformTag" formatter="platform-{0}"/>
    </complex>
  </tags>
</loggly>

applicationName

This is an optional attribute. If you leave this attribute out but have NewRelic.AppName in your app.config, then it will pick that value up automatically. Render your application name as a tag by using the HostnameTag (keep reading).

isEnabled

Set it to false on your development machine so that no events are sent to loggly.

transport

Three different transports may be specified with the logTransport attribute in the transport element. The transport element is entirely optional and will default to the Https. The available transports are as follows:

logTransport="Https"

The default transport, posting to Loggly on port 443. Note that application and host source group filtering are not supported by HTTP, so you may wish to consider a Syslog transport.

logTransport="SyslogUdp"

If you specify an applicationName in the config, the syslog UDP transport will populate the field so it may be filtered in a source group. Host is also automatically populated by the client. Udp messages are sent in plain text.

logTransport="SyslogTcp"

Uses Syslog over TCP but is not encrypted. Note this needs to be on port 514 for loggly. Port 514 will be selected if not specified.

logTransport="SyslogSecure"

Transmits using syslog messages via a secure TLS TCP channel so that your logs are encrypted over the wire. Syslog supports JSON formatted messages just like Https. Port 6514 is required for loggly and will be the default if not specified.

tags

simple tags are string literals added to the app.config. What you see is what you get.

complex tags inherit from ComplexTag. They have the formatter attribute so you may specify your own string.Format. The Assembly attribute is available as an optional parameter so you can roll your own tags too.

Loggly has certain restrictions around characters allowed in tags. This library automatically replaces illegal characters with an underscore.

Programmatic Configuration

If you prefer to set configuration programatically, specify the values via the static LogglyConfig.Instance class at application startup.

Usage: LogglyClient

Send simple text messages with something like this.

ILogglyClient _loggly = new LogglyClient();
var logEvent = new LogglyEvent();
logEvent.Data.Add("message", "Simple message at {0}", DateTime.Now);
_loggly.Log(logEvent);

Or log an entire object and let the client send it as structured JSON

logEvent.Data.Add("context", new GlimmerWingPony());
_loggly.Log(logEvent);

The Log method returns Task<LogResponse> so it is asynchronous by default but can be awaited. Only the Https transport would be worth awaiting as the Syslog transports are fire and forget.

Usage: SearchClient

See example project below in conjunction with the loggly docs

Loggly.Example Project

The solution has an example project with sample code to demonstrate the client. Before starting, copy the example config into the user config, eg:

C:\loggly-csharp>copy .\source\Loggly.Example\example.loggly.user.config .\source\Loggly.Example\loggly.user.config

And configure the file with your own customer token.

Of course, there is no need to have a config source in your real app, this is just a convenience for this public repository.

Projects using this client

History

v4.5.0.3

  • Bug fixes for syslog transports

v4.5

  • Targets framework 4.5
  • Log method returns Task<LogResponse> for async/await compatibility

v3.5

  • New maintainer neutmute
  • Refactored API with new Config assembly
  • Syslog UDP and TCP support added

v2.0 and prior

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