logging.md

Logging

• Introduction
• Configuration
  • Building Log Stacks
• Writing Log Messages

Introduction

To help you learn more about what's happening within your application, hunt-framework provides robust logging services that allow you to log messages to files, the system error log, and even to Slack to notify your entire team.

Configuration

All of the configuration for your application's logging system is housed in the config/application.conf configuration file. This file allows you to configure your application's log channels, so be sure to review each of the available channels and their options. We'll review a few common options below.

hunt.log.level= DEBUG
hunt.log.path= /root
hunt.log.file= log.txt
hunt.log.maxSize = 8M
hunt.log.maxNum= 10

Building Log Stacks

void main()
{
  writeln("Edit source/app.d to start your project.");
  LogConf conf;
  logLoadConf(conf);

  auto user = new User();
  user.id = 10;
  user.name = "2123";
  user.email = "18601699402@163.com34";
  user.addr = "tianlin road";
  user.age = 18;
  auto context = user.valid();
  logDebug("Valid Context : ",context);
}

Writing Log Messages

You may write information to the logs using the hunt.logging . As previously mentioned, the logger provides the eight logging levels defined in the hunt.logging.ConsoleLogger

alias logDebug = trace;
alias logDebugf = tracef;
alias logInfo = info;
alias logInfof = infof;
alias logWarning = warning;
alias logWarningf = warningf;
alias logError = error;
alias logErrorf = errorf;

So, you may call any of these methods to log a message for the corresponding level. By default, the message will be written to the default log channel as configured by your config/application.conf configuration file:

class IpFilterMiddleware : MiddlewareInterface {
    string name() {
        return IpFilterMiddleware.stringof;
    }

    override Response onProcess(Request req, Response res) {
        string path = req.path();
        infof("path: %s, post name: %s", path, req.post("name"));
        return null;
    }
}