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ը૾ࣗಈอଘɾӾཡγεςϜ
ʮٹ͍ʯʹΑͬͯͨΒ͞ΕΔޮೳ
ࢮʹΏ͘Twitter Streaming APIͷผΕͷݴ༿Λఴ͑ͯ
य़߹॓ߨ࠲2018 @utgwkk
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ٹΘΕͯ
͍·͔͢
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ٹ͍
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IUUQTUXJUUFSDPNNPLBYTUBUVT
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͍͍Ͷ❤
γΣΞ
ը૾Λอଘ
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อଘํ๏ˠόϥόϥ
อଘॴˠόϥόϥ
γΣΞˠखͰΔʁ
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͍͍Ͷ❤
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$POP)B714
͍͍Ͷ❤
͍͍Ͷ❤
͞ΕͨͰ
γΣΞ
ը૾Λอଘ
ϝλσʔλΛ
อଘ
༏উ
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JNBHFT
JNBHFTEBZ
JNBHFTNPOUI
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4USFBNJOH"1*
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πΠʔτ
͍͍Ͷͨ͠͞Εͨ
ϑΥϩʔͨ͠͞Εͨ
ͳͲͳͲ
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*ODPNJOH8FCIPPL
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import json
import requests
payload = {
"username": "hogefuga",
"text": "yo"
}
requests.post(
"https://hooks.slack.com/services/hoge/fuga/waowaowao",
data=json.dumps(payload)
)
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1PTUPOMZ
/PDPNQMJDBUFEDPEF
+VTU1045QBZMPBE
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No content
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images
id
filename
created_at
image_info
id
image_id
description
source
created_at
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ը૾ͷอଘ͚ͩͰμϝ
ݕࡧ͕͍ͨ͠ʂʂʂ
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No content
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IUUQTKQWVFKTPSHJOEFYIUNM
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ૉͳϑϩϯτΤϯυ
ੈք؍
TDSJQUTSD KTWVFNJOKT TDSJQU
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+40/ฦ͢"1*αʔό
ͳͥ͜ͷઃܭʹ͔ͨ͠
Εͨ
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ʮٹ͍ʯΛࢧ͑Δ42-
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ϖʔδωʔγϣϯ
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ૉͳϖʔδωʔγϣϯ
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select *
from image_info
order by id desc
limit 200 offset page*200
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0''4&5-*.*5
͍
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select *
from image_info
order by id desc
limit 2
offset 500000000
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σʔλ1
σʔλ2
σʔλ500000001
ʜʜ
σʔλ500000002
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σʔλ1
σʔλ2
σʔλ500000001
ʜʜ
σʔλ500000002
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σʔλ1
σʔλ2
σʔλ500000001
ʜʜ
σʔλ500000002
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σʔλ1
σʔλ2
σʔλ500000001
ʜʜ
σʔλ500000002
ສޙ
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σʔλ1
σʔλ2
σʔλ500000001
ʜʜ
σʔλ500000002
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σʔλ1
σʔλ2
σʔλ500000001
ʜʜ
σʔλ500000002
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select *
from image_info
where (something)
order by id desc
limit 200
offset 500000000
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select *
from image_info
where (something)
order by id desc
limit 200
offset 500000000
൪Ͳ͜ʁ
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TJODF@JENBY@JE
ྫ5XJUUFS3&45"1*
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ϖʔδࢦఆΛఘΊΔ
ߴͳOFYUQSFWऔಘ
JE͕ࢄతͰ͑Δ
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select *
from image_info
order by id desc
limit k
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M
N+1
N
M+1
N-1
ʜʜ
ʜ ʜ
QSFW
OFYU
PSEFSCZJEEFTD
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select *
from image_info
where id < N
order by id desc
limit k
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M+1
M
N-1
M-1
ʜʜ
ʜ
N
PSEFSCZJEEFTD
ʜ
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select *
from image_info
where id > M
order by id desc
limit k
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ΊͰͨ͠
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ΊͰͨ͠Ͱͳ͍
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select *
from image_info
where id > M
order by id desc
limit k
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max-1
max-k
max
M+1
ʜʜ
ʜ
PSEFSCZJEEFTD
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select *
from image_info
where id > M
order by id asc
limit k
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M+2
L
M+1
L+1
ʜʜ
ʜ
M
PSEFSCZJEBTD
ʜ
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select * from (
select *
from image_info
where id > M
order by id asc
limit k
) as t
order by id desc
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M+2
M+1
L
M
ʜʜ
ʜ
L+1
PSEFSCZJEEFTD
ʜ
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ΊͰͨ͠ ຊʹ
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ແݶͷϖʔδωʔγϣϯ
Λఏڙ͠ͳ͍ͱ͍͏ख
(PPHMF
5XJUUFS
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શจݕࡧ
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select *
from image_info
where description like
'%༫ਫࢠ%'
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-*,&શจݕࡧ͍
શEFTDSJQUJPOʹର͢Δ
ਖ਼نදݱϚον
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ΠϯσοΫε͕ޮ͔ͳ͍
ˠਓݖ͕ͳ͍
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6TFUIF*OEFY
-VLF
ΛಡΈ·͠ΐ͏
IUUQTVTFUIFJOEFYMVLFDPNKB
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IUUQJTVDPOOFU
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ΠϯσοΫε͕ޮ͔ͳ͍ͳΒ
ΠϯσοΫε͕ޮ͘Α͏ʹ͢
Ε͍͍͡Όͳ͍
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✨OHSBNJOEFY✨
ྫO
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จষ
ˣ
จࣈͷจࣈྻू߹
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จࣈͷจࣈྻ
ˣ
จষͷू߹
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༫ਫࢠ
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༫ਫਫࢠ
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༫ਫ ༫ਫࢠ ……
ਫ ༫ਫࢠ ……
ࢠ ༫ਫࢠ ……
…… ……
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༫ਫ
ਫ
ࢠ
N-gram
index
༫ਫࢠ
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CREATE TABLE `image_info` (
`id` int(32) NOT NULL AUTO_INCREMENT,
`image_id` int(32) DEFAULT NULL,
`description` varchar(2048) DEFAULT NULL,
`source` varchar(512) DEFAULT NULL,
`created_at` timestamp NOT NULL DEFAULT
CURRENT_TIMESTAMP,
PRIMARY KEY (`id`),
KEY `image_id` (`image_id`),
KEY `source` (`source`) USING HASH,
FULLTEXT KEY `description` (`description`) /*!
50100 WITH PARSER `ngram` */ ,
CONSTRAINT `image_info_ibfk_1` FOREIGN KEY
(`image_id`) REFERENCES `images` (`id`)
) ENGINE=InnoDB AUTO_INCREMENT=121018 DEFAULT
CHARSET=utf8mb4
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select *
from image_info
where match (description) against
('༫ਫࢠ' in natural language mode)
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ΊͰͨ͠
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ΊͰͨ͠Ͱͳ͍
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ྫΈΓ͋
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ΈΓΓ͋
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ʮΈΓʯʮΓ͋ʯ
ΛؚΉจষ͍͘ΒͰ
͋Γͦ͏
ʮΈΓ͋ʯ͕ඞཁ
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ͦ͜ʹ-*,&
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ΈΓ
Γ͋
N-gram
index
LIKE ΈΓ͋
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select *
from image_info
where match (description) against
('ΈΓ͋' in natural language mode)
and description like '%ΈΓ͋%'
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ΊͰͨ͠ ຊʹ
͜ͷํ๏͕٢ͱग़Δ͔ڟͱग़Δ͔ʹॾઆ͋Δ
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"/%03&9ݕࡧ
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χʔζ͍Ζ͍Ζ
ΈΓ͋ਔಸ
ٱอ03೫ʑ
ΈΓ͋ΕΈΓ͋
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ҰํQJYJW
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Δͧʙʙʙ
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No content
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શؚͯΉ ΈΓ͋
͍ͣΕؚ͔Ή ʹͳ ͪ͑
ͲΕؚ·ͳ͍ ΕΈΓ͋
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select *
from image_info
where (FILL IN HERE)
order by created_at desc
limit 200
શؚͯΉ ΈΓ͋
͍ͣΕؚ͔Ή ʹͳ ͪ͑
ͲΕؚ·ͳ͍ ΕΈΓ͋
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select *
from image_info
where true
order by created_at desc
limit 200
ͱΓ͋͑ͣUSVF
શؚͯΉ ΈΓ͋
͍ͣΕؚ͔Ή ʹͳ ͪ͑
ͲΕؚ·ͳ͍ ΕΈΓ͋
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select *
from image_info
where true and
match (description) against
('ΈΓ͋' in natural language mode)
and description like '%ΈΓ͋%'
order by created_at desc
limit 200
"/%ݕࡧ
શؚͯΉ ΈΓ͋
͍ͣΕؚ͔Ή ʹͳ ͪ͑
ͲΕؚ·ͳ͍ ΕΈΓ͋
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select *
from image_info
where true and
match (description) against
('ΈΓ͋' in natural language mode)
and description like '%ΈΓ͋%'
and ((match (description) against ('ʹͳ' in natural
language mode and description like '%ʹͳ%') or
(match (description) against ('ͪ͑' in natural
language mode and description like '%ͪ͑%'))
order by created_at desc
limit 200
03ݕࡧ
શؚͯΉ ΈΓ͋
͍ͣΕؚ͔Ή ʹͳ ͪ͑
ͲΕؚ·ͳ͍ ΕΈΓ͋
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select *
from image_info
where true and
match (description) against
('ΈΓ͋' in natural language mode)
and description like '%ΈΓ͋%'
and ((match (description) against ('ʹͳ' in natural
language mode and description like '%ʹͳ%') or
(match (description) against ('ͪ͑' in natural
language mode and description like '%ͪ͑%'))
and description not like '%ΕΈΓ͋%'
order by created_at desc
limit 200
/05ݕࡧ
શؚͯΉ ΈΓ͋
͍ͣΕؚ͔Ή ʹͳ ͪ͑
ͲΕؚ·ͳ͍ ΕΈΓ͋
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select *
from image_info
where true and
match (description) against
('ΈΓ͋' in natural language mode)
and description like '%ΈΓ͋%'
and ((match (description) against ('ʹͳ' in natural
language mode and description like '%ʹͳ%') or
(match (description) against ('ͪ͑' in natural
language mode and description like '%ͪ͑%'))
and description not like '%ΕΈΓ͋%'
order by created_at desc
limit 200
શؚͯΉ ΈΓ͋
͍ͣΕؚ͔Ή ʹͳ ͪ͑
ͲΕؚ·ͳ͍ ΕΈΓ͋
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select *
from image_info
where true and
match (description) against
('ΈΓ͋' in natural language mode)
and description like '%ΈΓ͋%'
and ((match (description) against ('ʹͳ' in natural
language mode and description like '%ʹͳ%') or
(match (description) against ('ͪ͑' in natural
language mode and description like '%ͪ͑%'))
and description not like '%ΕΈΓ͋%'
order by created_at desc
limit 200
͔ͤͬ͘ͳͷͰ͍ؑͩ͘͝͞
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ΊͰͨ͠ ຊʹ
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ؔ࿈ݚڀ
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IUUQTTQFBLFSEFDLDPNLND@KQHPPHMFQIPUPTOJOFUVUPEFTIJ
UVUBJSBTVUPXPMJVNFJQNV
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(PPHMFͷਓೳʹΑΔ
ࣗಈλά͚ศརͦ͏
పఈͨࣗ͠ಈԽͰ͢Ͷ
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શ෦(PͰॻ͍ͯΔͷ͍͢͝
ը૾ݕࡧͩͱΈͱͷϚο
νϯά͚ͬ͜͏େมͦ͏
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IUUQTGBWDMJQQFSBQQTQPUDPN
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͍͍Ͷͨ͠ը૾ҰཡΛ
खܰʹݟΕͯศར
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3&45"1*ͷ༷ʹ
റΒΕͯ͠·͏
ͦΕͦ͏
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ࠓޙͷ՝
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ݕࡧͰ͖ΔΠϥετ
ݕࡧͰ͖ͳ͍Πϥετ
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IUUQTUXJUUFSDPNTIJOLBOTFO7T0METUBUVT
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IUUQTUXJUUFSDPNTIJOLBOTFO7T0METUBUVT
ຊจ͕ͳ͍ͱ
ݕࡧͰ͖ͳ͍
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ਓྗλά৬ਓ
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σΟʔϓϥʔχϯά
ͬͯͭͰ
ͳΜͱ͔ͳΒͳ͍͔
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ࣸਅอଘͨ͘͠ͳ͍
߹ʹΑΔ
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৭ͷݟ͍͍ͯײ͡
ʹͰ͖ͳ͍͔
ʮσδλϧ৴߸ॲཧʯऔͬͯͳ͍
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σΟʔϓϥʔχϯά
ͬͯͭͰ
ͳΜͱ͔ͳΒͳ͍͔
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(PPHMF$MPVE7JTJPO
ͬͯͭͰ
ͳΜͱ͔ͳΒͳ͍͔
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՝ۚʂʂʂʂ
·ͩ՝ۚͯ͠ͳ͍
݄͙Β͍ͰͰ͖ͳ͍͔
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ݕࡧͰ͖ͳ͍จࣈ
OHSBNͩͱग़ͳ͍
-*,&ͩͱग़Δ
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ΞυϗοΫʹճආ
JG/(ϫʔυΛؚΉ
-*,&ͷΈͰΫΤϦΛΈཱͯͯฦ͢
FMTF
OHSBNͱ-*,&ͰΫΤϦΛΈཱͯͯฦ͢
FOE
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จࣈԞ͕ਂ͍
ҋਂ͍
ͦΕҎ্͍͚ͳ͍
ϫʔο
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શจݕࡧΫΤϦ͕͍͠
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select *
from image_info
where true and
match (description) against
('ΈΓ͋' in natural language mode)
and description like '%ΈΓ͋%'
and ((match (description) against ('ʹͳ' in natural
language mode and description like '%ʹͳ%') or
(match (description) against ('ͪ͑' in natural
language mode and description like '%ͪ͑%'))
and description not like '%ΕΈΓ͋%'
order by created_at desc
limit 200
͔ͤͬ͘ͳͷͰ͍ؑͩ͘͝͞ ࠶ܝ
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Ұํ1PTUHSF42-
QH@CJHN
-*,&͚ͩͰ0,
֦ுೖΕΔඞཁ͋Γ
τϨʔυΦϑ
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"1*ͷഇࢭ
ਓؒͷྲྀग़
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5XJUUFS4USFBNJOH"1*
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@ਓਓਓਓ@
ʼಥવͷࢮʻ
:?:?:?:
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ʁʁʁ
ʮετϦʔϛϯάͳΜͯ
πΠഇ͔͠ΘΜΖXʯ
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4USFBNJOH"1*ͰऔΕΔใ
㱠3&45"1*ͰऔΕΔใ
ྫ͍͍Ͷͨ͠πΠʔτ
࣌ܥྻ͕ڰ͏
ࢮ׆ʂʂʂʂʂʂʂ
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IUUQTUXJUUFSDPNXBLBNFTPCBTUBUVT
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"DDPVOU"DUJWJUZ"1*
㲈0VUHPJOH8FCIPPL
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֎͔Βݟ͑Δ)551αʔό
͕ඞཁ
ଟ͘ͷ5XJUUFSΫϥΠΞϯτ
͕ϦΞϧλΠϜऔಘΛఘΊ
͟ΔΛಘͳ͍
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No content
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ֆඳ͖
ूஂౚ݁૽ಈ
ݱࡏ
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IUUQTQBXPPOFUBCPVU
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"1*ʁ
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͍ͭͷؒʹ͔
4USFBNJOH"1*
࣮͞ΕͯΔʂʂʂ
IUUQTHJUIVCDPNUPPUTVJUFEPDVNFOUBUJPOCMPCNBTUFS6TJOH
UIF"1*4USFBNJOH"1*NE
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1BXPP4USFBNJOH
"1*ʹରԠͯ͠Δ
Ϡολʔʂʂʂ
$ curl https://pawoo.net/api/v1/streaming/public
4FSWFS4FOU&WFOUTͰ߱ͬͯ͘Δ༷ࢠ͕ݟΕΔ
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కΊͷϙΤϜ
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αʔϏεʹण໋͕͋Δ
એݴతࣝ
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ͷ৴པΛஔ͚Δ
αʔϏεଘࡏ͠ͳ͍
͍Ζ͍Ζͳࣄ͕͋Δʜʜ
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զʑຊ࣭తʹ
ΠϯλʔωοτͰͷ
༡Λ͍͔ͬͯ͘͠ͳ͍
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࣭
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͔͜͜Βઌ
ࢀߟʹͨ͠ϖʔδͳͲ
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w "1*PWFSWJFXUPPUTVJUFEPDVNFOUBUJPO
w IUUQTHJUIVCDPNUPPUTVJUFEPDVNFOUBUJPOCMPCNBTUFS
6TJOHUIF"1*"1*NE
w 1BXPP
w IUUQTQBXPPOFUBCPVU
w 6TFUIF*OEFY
-VLF
w IUUQTVTFUIFJOEFYMVLFDPNKB
w 0''4&5ΛΘͳ͍ߴͳϖʔδωʔγϣϯͷ࣮ݱ
w IUUQTRJJUBDPNNQZXJUFNTDDFFF