app

Documentation

Overview

Package app contains the main Application struct. This struct represents the application and is resposible for creating and connecting all other parts of the software.

Index

• func CleanupEnv(cfg *config.Config) error
• func SetupEnv(cfg *config.Config) error
• type Application
  • func New(cfg *config.Config) (*Application, error)
  • func (a *Application) Reload(cfg *config.Config) error
  • func (app *Application) ServeHTTP(writer http.ResponseWriter, req *http.Request)
  • func (a *Application) Start() error
  • func (a *Application) Stop() error
  • func (a *Application) Wait() error

Functions

func CleanupEnv

func CleanupEnv(cfg *config.Config) error

CleanupEnv has to be called on application shutdown. Will remove the pidfile.

func SetupEnv

func SetupEnv(cfg *config.Config) error

SetupEnv will create pidfile and possibly change the workdir.

Types

type Application

type Application struct {
	// contains filtered or unexported fields
}

Application is the type which represents the webserver. It is responsible for parsing the config and it has Start, Stop, Reload and Wait functions.

func New

func New(cfg *config.Config) (*Application, error)

New creates and returns a new Application with the specified config.

func (*Application) Reload

func (a *Application) Reload(cfg *config.Config) error

Reload takse a new configuration and replaces the old one with it. After succesful reload the things that are written in the new config will be in use.

func (*Application) ServeHTTP

func (app *Application) ServeHTTP(writer http.ResponseWriter, req *http.Request)

func (*Application) Start

func (a *Application) Start() error

Start fires up the application.

func (*Application) Stop

func (a *Application) Stop() error

Stop makes sure the application is completely stopped and all of its goroutines and channels are finished and closed.

func (*Application) Wait

func (a *Application) Wait() error

Wait subscribes iteself to few signals and waits for any of them to be received. When Wait returns it is the end of the application.