File Coverage

blib/lib/WebService/Instagram.pm

Criterion	Covered	Total	%
statement	33	76	43.4
branch	0	10	0.0
condition	0	5	0.0
subroutine	11	17	64.7
pod	3	6	50.0
total	47	114	41.2

package WebService::Instagram;

use 5.006;
use strict;
use warnings;

use JSON;
use LWP::UserAgent;
use URI;
use Carp;
use Data::Dumper;
use HTTP::Request;

our $VERSION = '0.05';

use constant AUTHORIZE_URL 	=> 'https://api.instagram.com/oauth/authorize?';
use constant ACCESS_TOKEN_URL 	=> 'https://api.instagram.com/oauth/access_token?';

sub new {
	my ($class, $self) = @_;
	foreach ( qw(client_id client_secret redirect_uri) ) {
		confess "Oops! $_ not provided" if ( ! defined $self->{$_} );
	}
	$self->{browser} = LWP::UserAgent->new();
	bless $self, $class;
	return $self;
}

sub get_auth_url {
	my $self = shift;
	carp "User already authorized with code: $self->{code}" if $self->{code};
	my @auth_fields = qw(client_id redirect_uri response_type);
	$self->{response_type} = 'code';
	foreach ( @auth_fields ) {
		confess "ERROR: $_ required for generating authorization URL." if (!defined $_);
	}
	#print Dumper $self->{client_id};

	my $uri = URI->new( AUTHORIZE_URL );
	$uri->query_form(
		map { $_ => $self->{$_} } @auth_fields,
	);

	return $uri->as_string();
}

sub set_code {
	my $self = shift;
	$self->{code} = shift || confess "Code not provided";
	return $self;
}

sub get_access_token {
	my $self = shift;
	my @access_token_fields = qw(client_id redirect_uri grant_type client_secret code);
	$self->{grant_type} = 'authorization_code';
	foreach ( @access_token_fields ) {
		confess "ERROR: $_ required for building access token." if (!defined $_);
	}
	my $params = {};
	@$params{ @access_token_fields } = @$self{ @access_token_fields };

	my $uri = URI->new( ACCESS_TOKEN_URL );
        my $req = new HTTP::Request POST => $uri->as_string;
        $uri->query_form($params);
        $req->content_type('application/x-www-form-urlencoded');
        $req->content($uri->query);
        my $res = from_json($self->{browser}->request($req)->content);
#	print Dumper $res;
#	$self->{access_token} = $res->{access_token};
	return $res->{access_token};
}

sub set_access_token {
	my $self = shift;
	$self->{access_token} = shift || die "No access token provided";
}

sub request {
	my ( $self, $url, $params ) = @_;
	croak "access_token not passed" unless defined $self->{access_token} ;
	$params->{access_token} = $self->{access_token};
	my $uri = URI->new( $url );
        $uri->query_form($params);
	my $response = $self->{browser}->get($uri->as_string);
	my $ret = $response->decoded_content;
	return decode_json $ret;
}

1; # End of WebService::Instagram
__END__