groupie.go

package main

import (
	"fmt"
	netUrl "net/url"
	fb "github.com/huandu/facebook"
)

const ACCESS_TOKEN = "<get one here https://developers.facebook.com/tools/explorer>"

type Post struct {
	Id string `facebook:",required"`
	Message string
	CreatedTime string
}

type Paging struct {
	Previous, Next string
}

func processPosts (url string) {
	res, err := fb.Get(url, fb.Params{
		"access_token": ACCESS_TOKEN,
	})

	if (err != nil) {
		panic(err)
	}

	var posts []Post
	var paging Paging
	res.DecodeField("data", &posts)
	res.DecodeField("paging", &paging)

	if (len(posts) == 0) {
		return
	}

	for _, post := range posts {
		fmt.Println(post.CreatedTime)
	}

	u, _ := netUrl.Parse(paging.Next)
	path_without_version_prefix := u.Path[len("/v2.0"):]
	next := path_without_version_prefix + "?" + u.RawQuery
	processPosts(next)

}

func main () {

	fb.Version = "v2.0"
	processPosts("/163844093817909/feed");
	// processPosts("/163844093817909/feed?fields=created_time&limit=10");
}