Perl
LINE NEWS
LINE (@nipotan)

@nipotan
nipotan
https://github.com/nipotan
LINE 3
http://nipotan.com

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LINE NEWS

●
● Amon2
● JSON API
● Web
● Admin CMS
Jul 2013
MAU
300

( 2012 2 )
LINE NEWS

LINE NEWS DIGEST
LINE Messaging API -
https://developers.line.me/ja/docs/messaging-api/reference/
MAU
600

LINE NEWS DIGEST

● Perl
● Imager
●
●
LINE NEWS DIGEST

use strict;
use warnings;
use utf8;
use Imager;
use Imager::Font;
my $header = Imager->new(xsize => 1040, ysize => 140); #
$header->box(filled => 1, color => '#ffffff');
my $logo = Imager->new(file => '/path/to/line-news-logo.png'); #
$header->compose(src => $logo, tx => 36, ty => 40);
#
my $hiragino_w3 = Imager::Font->new(file => ‘/path/to/hiragino-kakugo-w3.otf');
my $hiragino_w6 = Imager::Font->new(file => '/path/to/hiragino-kakugo-w6.otf');
#
my $go = 'YAPC::Okinawa ';
my $bbox = $hiragino_w3->bounding_box(string => $go, size => 28); #
my $x = 1040 - 36 - $bbox->pos_width; # 36 px
$header->string(
font => $hiragino_w3,
text => $go,
x => $x,
y => 80,
size => 28,
color => '#a0a0a0',
aa => 1,
);
LINE NEWS DIGEST

LINE NEWS DIGEST
0%
55%

my $headline = Imager->new(file => '/path/to/yapcjapan2018.png');
# y 370 793 423 px
# 0% 55%
# 1040x1
my $line = Imager->new(
xsize => 1040,
ysize => 1,
channels => 4, # alpha channel
);
$line->box(filled => 1, color => '#000000'); #
my $opacity = 0.00;
my $increment_per_line = (0.55 - $opacity) / 423; # 1 px
for my $y (370 .. 793) {
$headline->compose(
src => $line,
tx => 0,
ty => $y,
opacity => $opacity,
);
$opacity += $increment_per_line;
}
LINE NEWS DIGEST

#
my $tp = Imager->new(
xsize => 1040,
ysize => 794,
channels => 4, # alpha channel
);
#
my $title = 'YAPC::Japan ';
#
my $description = '2018 3 3 OIST@ Perl ';
#
$tp->string(
font => $hiragino_w6,
text => $title,
x => 36,
y => 684,
size => 70,
color => '#000000',
aa => 1,
);
$tp->string(
font => $hiragino_w3,
text => $description,
x => 36,
y => 748,
size => 40,
color => '#000000',
aa => 1,
);
# 43%
$headline->compose(src => $tp, tx => 0, ty => 0, opacity => 0.43);
LINE NEWS DIGEST

$headline->string(
font => $hiragino_w6,
text => $title,
x => 36,
y => 682,
size => 70,
color => '#ffffff',
aa => 1,
);
$headline->string(
font => $hiragino_w3,
text => $description,
x => 36,
y => 746,
size => 40,
color => '#ffffff',
aa => 1,
);
LINE NEWS DIGEST

my $img01 = Imager->new(file => '/path/to/ao-no-doukutsu.jpg');
my $line = Imager->new(
xsize => 386,
ysize => 1,
channels => 4,
);
$line->box(filled => 1, color => '#000000');
my $opacity = 0.00;
my $increment_per_line = (0.55 - $opacity) / 203;
for my $y (171 .. 374) {
$img01->compose(
src => $line,
tx => 0,
ty => $y,
opacity => $opacity,
);
$opacity += $increment_per_line;
}
my $tp = Imager->new(
xsize => 386,
ysize => 375,
channels => 4,
);
$tp->string(
font => $hiragino_w3,
text => ' ',
x => 36,
y => 338,
size => 40,
color => '#000000',
aa => 1,
);
$img01->compose(src => $tp, tx => 0, ty => 0, opacity => 0.43);
$img01->string(
font => $hiragino_w3,
text => ' ',
x => 36,
y => 336,
size => 40,
color => '#ffffff',
aa => 1,
);
LINE NEWS DIGEST

my @titles = (
‘ ’, ' ',
‘ ', ' ',
' ',
);
my @text_news;
for my $i (0 .. 4) {
my $text = Imager->new(xsize => 654, ysize => 150); #
$text->box(filled => 1, color => '#ffffff');
my $line = Imager->new(xsize => 654, ysize => 2); #
$line->box(filled => 1, color => '#dde0e6');
$text->paste(left => 0, top => 148, img => $line);
$text->string(
font => $hiragino_w3,
text => $titles[$i],
x => 36,
y => 91,
size => 41,
color => '#000000',
aa => 1,
);
push @text_news, $text;
}
LINE NEWS DIGEST

#
my $footer = Imager->new(xsize => 1040, ysize => 140);
$footer->box(filled => 1, color => '#ffffff');
my $arrow = Imager->new(file => '/path/to/arrow.png');
$footer->compose(src => $arrow, tx => 984, ty => 53);
$footer->string(
font => $hiragino_w6,
text => ' ',
x => 36,
y => 84,
size => 36,
color => '#284096',
aa => 1,
);
LINE NEWS DIGEST

#
my $base = Imager->new(xsize => 1040, ysize => 1824);
$base->box(filled => 1, color => '#ffffff');
$base->paste(left => 0, top => 0, img => $header);
$base->paste(left => 0, top => 140, img => $headline);
$base->paste(left => 0, top => 934, img => $img01);
$base->paste(left => 0, top => 1309, img => $img02);
my $y = 934;
for my $i (0 .. 4) {
$base->paste(left => 386, top => $y + $i * 150, img => $text_news[$i]);
}
$base->paste(left => 0, top => 1684, img => $footer);
LINE NEWS DIGEST

Imager

Apr 2016Apr 2015
LINE
Web App
Feb 2017
LINE 5
Dec 2015
LINE
LINE NEWS
MAU
1200
MAU
2200
MAU
4100
MAU
5900

…
● LINE NEWS DIGEST
●

Request count
1 LINE NEWS

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Smart
View
0.5

●
● SPA (Single-Page Application)
● HTML
●
● id auto paging
●
● + localStorage
0.5
UIT++

●
● CDN
● CDN
●
● Cache-Control
● HTTP/2
● origin HTTP/1.1 CDN
● static content proxy connection reuse
0.5

● KVS
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●
● Primary Key Array
●
● Primary Key get() || get_multi()
0.5

MISSION COMPLETED

LINE NEWS

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● Web API http://d.hatena.ne.jp/naoya/20060228/1141094456
●
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● Perl
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● Shibuya Perl Mongers #1 (Jan 31, 2003)
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