Example graw Bot

announcer.go

package main

import (
	"fmt"

	"github.com/turnage/graw"
	"github.com/turnage/redditproto"
)

type announcer struct{}

func (a *announcer) Post(post *redditproto.Link) {
	fmt.Printf("[%s] %s\n", post.GetSubreddit(), post.GetTitle())
}

func main() {
	if err := graw.Run("useragent.protobuf", &announcer{}, "all"); err != nil {
		fmt.Printf("An error occurred: %v\n", err)
	}
}

replier.go

// Package main is the main package of autoreply, a simple Reddit bot that
// automatically replies to messages, which demonstrates how to use graw to
// write Reddit bots.
package main

import (
	"fmt"

	"github.com/turnage/graw"
	"github.com/turnage/redditproto"
)

// autoReplier is a grawbot, which is just a struct that implements methods graw
// looks for, which handle the events from Reddit graw feeds it.
type autoReplier struct {
	cannedMessage string
	eng           graw.Engine
}

// SetUp is a method graw looks for. If it is implemented, it will be called
// before the engine starts looking for events on Reddit. If SetUp returns an
// error, the bot will stop.
func (a *autoReplier) SetUp() error {
	a.eng = graw.GetEngine(a)
	return nil
}

// Message is a method graw looks for. If implemented, graw knows the bot can
// handle private messages it receives, so this method will be called whenever
// the bot receives a private message. The message, like all data graw provides,
// is a protobuffer.
func (a *autoReplier) Message(message *redditproto.Message) {
	if err := a.eng.Reply(message.GetName(), a.cannedMessage); err != nil {
		fmt.Printf(
			"Failed to reply to %s's message; err: %v\n",
			message.GetAuthor(),
			err,
		)
	}
}

func main() {
	bot := &autoReplier{
		cannedMessage: "I'm not available right now.",
	}
	if err := graw.Run("agent.protobuf", bot); err != nil {
		fmt.Printf("An error occurred: %v\n", err)
	}
}