Lightspeed K-Series: zaiko zero de menu wo jido grey ka

Amsterdam no poke bowl chain de wa lunch no tochuu de salmon ga kireru ga, digital menu wa 20 pun mo kizukanakatta. thMenu wo Lightspeed K-Series WebSocket ni tsunaida tokoro, gurei no "honjitsu uri kire" badge ga zaiko zero kara 280ms de hyouji sareru you ni nari, gohatsuchuu no henkin ga 94% gen.

WebSocket eizoku setsuzoku 5 byou polling de wa nai

Cloudflare Durable Objects keiyu de /inventory-events e no eizoku setsuzoku, tenpo goto ni 1 socket. 18 socket ga 32 KB memory ni osamaru.

SKU no saishin snapshot dake wo hoji, rireki cache nashi — push gata de sub-second latency, polling zero.

Grey badge sakujo de wa nai

Card wa nokoshi opacity 0.5, "honjitsu uri kire" badge. Okyaku wa shashin wo mite ashita modotte kuru. Cart button wa pointer-events:none de mukou ka.

• Iro: charcoal grey (#3a3a3a), aka wa tsukawanai.
• Animation: 220ms cross-fade.
• Allergen filter: uri kire mo hyouji, chuumon dake fuka.

Edge case: waiter no torikeshi

Waiter ga salmon 1 wo torikesu to Lightspeed zaiko ga +1 ni naru ga, kitchen wa saigo no portion wo sude ni junbi shita kamoshirenai. Kaiketsu wa tedouga no sold-out lock. Manager ga tegaki de "uri kire" toggle suru to WebSocket event wa muji sare, kaijo suru made yuusen. manual_soldout_until ni hozon, 23:00 cron de souji.

"Zaiko 1, genjitsu 0" no yuurei chuumon wa shoumetsu.

FAQ

L-Series taiou? Iie — L-Series wa REST polling nomi. K-Series ni WebSocket.

Socket ga ochitara? 1s/2s/4s/8s no shisuu backoff to 5 pun goto no REST fallback.

Dono plan? Pro to Platinum. Starter wa tedouga toggle nomi.

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