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- 売äžã®å¢å ïŒ åšåº«ãå°ãªãååã®è³Œå ¥ããŠãŒã¶ãŒã«ä¿ãããšã§ãåè¿«æãçã¿åºããã³ã³ããŒãžã§ã³ãä¿é²ããããšãã§ããŸãã
- åšåº«ç®¡çã®æé©åïŒ ãªã¢ã«ã¿ã€ã æŽæ°ã«ãããäŒæ¥ã¯åšåº«ã¬ãã«ã广çã«ç£èŠããéå°åšåº«ãåšåº«åããé²ããåšåº«å転çãæé©åããããšãã§ããŸãã
- æ¥åå¹çã®åäžïŒ åšåº«ç®¡çã¿ã¹ã¯ãèªååããããšã§ãæäœæ¥ãæžããããšã©ãŒãæå°éã«æããä»ã®éèŠãªããžãã¹æ©èœã®ããã«ãªãœãŒã¹ãè§£æŸããŸãã
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1. é©åãªAPIã®éžæ
APIïŒã¢ããªã±ãŒã·ã§ã³ããã°ã©ãã³ã°ã€ã³ã¿ãŒãã§ãŒã¹ïŒã¯ãããã³ããšã³ããšããã¯ãšã³ãã®åšåº«ç®¡çã·ã¹ãã ã®éã®æ©æž¡ã圹ãåããŸããã·ãŒã ã¬ã¹ãªçµ±åã®ããã«ã¯ãé©åãªAPIãéžæããããšãæãéèŠã§ãã以äžã®èŠçŽ ãèæ ®ããŠãã ããïŒ
- ããŒã¿åœ¢åŒïŒ APIãããã³ããšã³ãã§å®¹æã«å©çšã§ãã圢åŒïŒäŸïŒJSONïŒã§ããŒã¿ãæäŸããŠããããšã確èªããŸãã
- èªèšŒïŒ åšåº«ããŒã¿ãžã®ã¢ã¯ã»ã¹ãä¿è·ããäžæ£ãªå€æŽãé²ãããã«ãå ç¢ãªèªèšŒã¡ã«ããºã ãå®è£ ããŸããäžè¬çãªæ¹æ³ã«ã¯ãAPIããŒãOAuth 2.0ãJWTïŒJSON Web TokenïŒãªã©ããããŸãã
- ã¬ãŒãå¶éïŒ èš±å®¹ããããªã¯ãšã¹ãæ°ãè¶ ããŠãµãŒãã¹ãäžæãããå¯èœæ§ãé¿ããããã«ãAPIã®ã¬ãŒãå¶éããªã·ãŒãçè§£ããŸããããã³ããšã³ãã§ãã£ãã·ã¥æŠç¥ãå®è£ ããAPIåŒã³åºããæå°éã«æããŸãã
- ãšã©ãŒåŠçïŒ APIãšã©ãŒãé©åã«åŠçãããŠãŒã¶ãŒã«æçãªã¡ãã»ãŒãžãæäŸããããã®å ç¢ãªãšã©ãŒåŠçã¡ã«ããºã ãèšèšããŸãã
- ãªã¢ã«ã¿ã€ã æŽæ°ïŒ ãªã¢ã«ã¿ã€ã ã®åšåº«æŽæ°ãå¿ èŠãªå Žåã¯ãããã·ã¥éç¥ã®ããã«WebSocketãServer-Sent EventsïŒSSEïŒããµããŒãããAPIã®äœ¿çšãæ€èšããŸãã
äŸïŒ å€ãã®Eã³ããŒã¹ãã©ãããã©ãŒã ã¯ãShopify APIãWooCommerce REST APIãMagento APIãªã©ãç¬èªã®APIãæäŸããŠããŸãããããã®APIã¯ãåšåº«ããŒã¿ãååæ å ±ãæ³šæç®¡çæ©èœãªã©ãžã®ã¢ã¯ã»ã¹ãæäŸããŸããZoho InventoryãCin7ãDear Inventoryãªã©ã®ãµãŒãããŒãã£åšåº«ç®¡çã·ã¹ãã ããããŸããŸãªEã³ããŒã¹ãã©ãããã©ãŒã ãšçµ±åããããã®APIãæäŸããŠããŸãã
2. ããŒã¿ãããã³ã°ãšå€æ
APIããåãåã£ãããŒã¿ããåžžã«ããã³ããšã³ãã§èŠæ±ãããæ£ç¢ºãªåœ¢åŒã§ãããšã¯éããŸãããããŒã¿ãããã³ã°ã«ã¯ãAPIã®åœ¢åŒããããã³ããšã³ãã®åœ¢åŒã«ããŒã¿ã倿ããäœæ¥ãå«ãŸããŸããããã«ã¯ããã£ãŒã«ãåã®å€æŽãããŒã¿åã®å€æãèšç®ã®å®è¡ãªã©ãå«ãŸããå ŽåããããŸãã
äŸïŒ APIãåšåº«ã¬ãã«ãæŽæ°ïŒäŸïŒ10ïŒã§è¡šãã®ã«å¯Ÿããããã³ããšã³ãã§ã¯ç¹å®ã®åœ¢åŒã®æååïŒäŸïŒãåšåº«ãã: 10ãïŒãå¿ èŠãªå ŽåããããŸããããŒã¿å€æã«ã¯ãæŽæ°ãæååã«å€æãããåšåº«ãã:ããšããæ¥é èŸã远å ããäœæ¥ãå«ãŸããŸãã
3. ããã©ãŒãã³ã¹ã®æé©å
åšåº«ããŒã¿ã®ååŸãšè¡šç€ºã¯ãããã³ããšã³ãã®ããã©ãŒãã³ã¹ã«åœ±é¿ãäžããå¯èœæ§ããããŸããã¹ã ãŒãºãªãŠãŒã¶ãŒãšã¯ã¹ããªãšã³ã¹ã確ä¿ããããã«ãããŒã¿ååŸãšã¬ã³ããªã³ã°ãæé©åããŸãïŒ
- ãã£ãã·ã¥ïŒ ããã³ããšã³ãã«ãã£ãã·ã¥ã¡ã«ããºã ãå®è£ ããŠãé »ç¹ã«ã¢ã¯ã»ã¹ãããåšåº«ããŒã¿ãä¿åããŸããããã«ãããAPIåŒã³åºãã®åæ°ãæžããèªã¿èŸŒã¿æéãççž®ãããŸãããã©ãŠã¶ã®ãã£ãã·ã¥ïŒäŸïŒlocalStorage, sessionStorageïŒãå°çšã®ãã£ãã·ã¥ã©ã€ãã©ãªïŒäŸïŒReact Query, SWRïŒã䜿çšããŸãã
- ããŒã¿ããŒãžããŒã·ã§ã³ïŒ 倧éã®åšåº«ã«ã€ããŠã¯ãããŒãžããŒã·ã§ã³ã䜿çšããŠããŒã¿ãå°ããªãã£ã³ã¯ã§ååŸããŸããããã«ãããããã³ããšã³ããããŒã¿ã§å§åãããã®ãé²ããåæèªã¿èŸŒã¿æéãæ¹åããŸãã
- é å»¶èªã¿èŸŒã¿ïŒ åšåº«ããŒã¿ã¯å¿ èŠãªãšãã«ã®ã¿èªã¿èŸŒã¿ãŸããããšãã°ããŠãŒã¶ãŒãååãã¯ãªãã¯ãããšãã«ã®ã¿åå詳现ãèªã¿èŸŒã¿ãŸãã
- ç»åæé©åïŒ ååç»åããŠã§ãçšã«æé©åããŠããã¡ã€ã«ãµã€ãºãåæžããèªã¿èŸŒã¿æéãæ¹åããŸããç»åå§çž®æè¡ãšé©åãªç»å圢åŒïŒäŸïŒWebPïŒã䜿çšããŸãã
- ã³ãŒãåå²ïŒ ããã³ããšã³ãã®ã³ãŒããããå°ããªãã³ãã«ã«åå²ãããªã³ããã³ãã§èªã¿èŸŒã¿ãŸããããã«ãããåæããŠã³ããŒããµã€ãºãåæžãããããŒãžã®èªã¿èŸŒã¿ããã©ãŒãã³ã¹ãåäžããŸãã
4. ãªã¢ã«ã¿ã€ã æŽæ°æŠç¥
ãªã¢ã«ã¿ã€ã ã®åšåº«æŽæ°ã¯ããŠãŒã¶ãŒã«æãæ£ç¢ºãªæ å ±ãæäŸããããã«äžå¯æ¬ ã§ãããªã¢ã«ã¿ã€ã æŽæ°ãå®è£ ããããã®ããã€ãã®æŠç¥ã以äžã«ç€ºããŸãïŒ
- WebSocketïŒ WebSocketã¯ãããã³ããšã³ããšããã¯ãšã³ãéã®æ°žç¶çãªåæ¹åéä¿¡ãã£ãã«ãæäŸããŸããããã«ãããåšåº«ã¬ãã«ã倿Žããããã³ã«ããã¯ãšã³ããããã³ããšã³ãã«æŽæ°ãããã·ã¥ã§ããŸãã
- Server-Sent Events (SSE)ïŒ SSEã¯ãããã¯ãšã³ããããã³ããšã³ãã«æŽæ°ãããã·ã¥ã§ããäžæ¹åã®éä¿¡ãããã³ã«ã§ããSSEã¯WebSocketãããå®è£ ãç°¡åã§ãããåæ¹åéä¿¡ã¯ãµããŒãããŠããŸããã
- ããŒãªã³ã°ïŒ ããŒãªã³ã°ã¯ãããã³ããšã³ãã宿çã«ããã¯ãšã³ãã«ãªã¯ãšã¹ããéä¿¡ããŠåšåº«ã®æŽæ°ã確èªããææ³ã§ããããŒãªã³ã°ã¯æãç°¡åãªã¢ãããŒãã§ãããæŽæ°ããªããšãã§ããªãœãŒã¹ãæ¶è²»ããããéå¹ççã«ãªãå¯èœæ§ããããŸãã
äŸïŒ ã°ããŒãã«ã«å±éããEã³ããŒã¹ã¹ãã¢ã§ã¯ãWebSocketã䜿çšããŠãç°ãªã倧éžã«ããå庫ã®åšåº«å€æŽãå³åº§ã«åæ ãããããšãã§ããŸãããšãŒãããã§ååãè³Œå ¥ããããšãæŽæ°ãããåšåº«ã¬ãã«ãåç±³ãã¢ãžã¢ã®ãŠãŒã¶ãŒåããŠã§ããµã€ãã«ããã«åæ ãããŸãã
5. ãšããžã±ãŒã¹ãšãšã©ãŒã·ããªãªã®åŠç
åšåº«çµ±åäžã«çºçããå¯èœæ§ã®ããæœåšçãªãšããžã±ãŒã¹ããšã©ãŒã·ããªãªãäºæž¬ããåŠçããããšãéèŠã§ãïŒ
- APIã®ããŠã³ã¿ã€ã ïŒ APIãäžæçã«å©çšã§ããªãç¶æ³ã«å¯ŸåŠããããã®ãã©ãŒã«ããã¯ã¡ã«ããºã ãå®è£ ããŸãããŠãŒã¶ãŒã«æçãªãšã©ãŒã¡ãã»ãŒãžã衚瀺ãã代æ¿ãªãã·ã§ã³ïŒäŸïŒã«ã¹ã¿ããŒãµããŒããžã®é£çµ¡ïŒãæäŸããŸãã
- ããŒã¿ã®äžæŽåïŒ APIããåä¿¡ããããŒã¿ãäžè²«æ§ãããæ£ç¢ºã§ããããšãä¿èšŒããããã«ãããŒã¿æ€èšŒãã§ãã¯ãå®è£ ããŸããäžæŽåãæ€åºãããå Žåã¯ããšã©ãŒããã°ã«èšé²ããéçºããŒã ã«éç¥ããŸãã
- ãããã¯ãŒã¯æ¥ç¶ã®åé¡ïŒ ãŠãŒã¶ãŒã®ãããã¯ãŒã¯æ¥ç¶ãäžå®å®ãŸãã¯å©çšã§ããªãç¶æ³ã«å¯ŸåŠããŸããé©åãªãšã©ãŒã¡ãã»ãŒãžã衚瀺ãããªã¯ãšã¹ããå詊è¡ãããªãã·ã§ã³ãæäŸããŸãã
- ç«¶åç¶æ ïŒ è€æ°ã®ãŠãŒã¶ãŒãåæã«åãååãè³Œå ¥ããããšããã·ããªãªã§ã¯ãç«¶åç¶æ ãçºçããå¯èœæ§ããããŸããéå°è²©å£²ãé²ãããã«ãããã¯ãšã³ãã§é©åãªããã¯ã¡ã«ããºã ãå®è£ ããŸãã
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1. JavaScriptãã¬ãŒã ã¯ãŒã¯
- ReactïŒ Reactã¯ããŠãŒã¶ãŒã€ã³ã¿ãŒãã§ãŒã¹ãæ§ç¯ããããã®äººæ°ã®JavaScriptã©ã€ãã©ãªã§ãããã®ã³ã³ããŒãã³ãããŒã¹ã®ã¢ãŒããã¯ãã£ãšä»®æ³DOMã¯ãè€éãªåšåº«ç®¡çã·ã¹ãã ã®æ§ç¯ã«é©ããŠããŸãã
- AngularïŒ Angularã¯ãGoogleã«ãã£ãŠéçºãããå æ¬çãªJavaScriptãã¬ãŒã ã¯ãŒã¯ã§ããå€§èŠæš¡ãªã¢ããªã±ãŒã·ã§ã³ãæ§ç¯ããããã®æ§é åãããã¢ãããŒããæäŸããäŸåæ§æ³šå ¥ãããŒã¿ãã€ã³ãã£ã³ã°ãªã©ã®æ©èœãæäŸããŸãã
- Vue.jsïŒ Vue.jsã¯ãåŠç¿ãããã䜿ããããããã°ã¬ãã·ãJavaScriptãã¬ãŒã ã¯ãŒã¯ã§ãããã®æè»æ§ãšè»œéæ§ã«ãããã·ã³ã°ã«ããŒãžã¢ããªã±ãŒã·ã§ã³ãã€ã³ã¿ã©ã¯ãã£ããªã³ã³ããŒãã³ãã®æ§ç¯ã«é©ããŠããŸãã
2. UIã©ã€ãã©ãª
- Material UIïŒ Material UIã¯ãGoogleã®ãããªã¢ã«ãã¶ã€ã³ã®ååã«åºã¥ããäžé£ã®æ§ç¯æžã¿ã³ã³ããŒãã³ããæäŸãã人æ°ã®React UIã©ã€ãã©ãªã§ãã
- Ant DesignïŒ Ant Designã¯ããšã³ã¿ãŒãã©ã€ãºã¬ãã«ã®ã¢ããªã±ãŒã·ã§ã³ãæ§ç¯ããããã®é«å質ãªã³ã³ããŒãã³ãã»ãããæäŸããReact UIã©ã€ãã©ãªã§ãã
- BootstrapïŒ Bootstrapã¯ãã¬ã¹ãã³ã·ããªãŠã§ããµã€ããæ§ç¯ããããã®æ§ç¯æžã¿ã®ã¹ã¿ã€ã«ãšã³ã³ããŒãã³ãã®ã»ãããæäŸãã人æ°ã®CSSãã¬ãŒã ã¯ãŒã¯ã§ãã
3. ç¶æ 管çã©ã€ãã©ãª
- ReduxïŒ Reduxã¯ãJavaScriptã¢ããªçšã®äºæž¬å¯èœãªç¶æ ã³ã³ããã§ããã¢ããªã±ãŒã·ã§ã³ã®ç¶æ ã管çããããã®äžå çãªã¹ãã¢ãæäŸããç¶æ ã®å€æŽã«ã€ããŠæšè«ããããããŸãã
- VuexïŒ Vuexã¯ãVue.jsã¢ããªã±ãŒã·ã§ã³ã®ããã®ç¶æ 管çãã¿ãŒã³+ã©ã€ãã©ãªã§ããã¢ããªã±ãŒã·ã§ã³ã®ç¶æ ã管çããããã®äžå çãªã¹ãã¢ãæäŸããVue.jsã³ã³ããŒãã³ããšã·ãŒã ã¬ã¹ã«çµ±åãããŸãã
- Context API (React)ïŒ Reactã«çµã¿èŸŒãŸããŠããContext APIã¯ããã¹ãŠã®ã¬ãã«ã§æåã§propsãæž¡ãããšãªããã³ã³ããŒãã³ãããªãŒãéããŠããŒã¿ãæž¡ãæ¹æ³ãæäŸããŸãã
ãµã³ãã« ããã³ããšã³ãåšåº«ã³ã³ããŒãã³ãã®æ§ç¯ (React)
以äžã¯ãååã®åšåº«ã¬ãã«ã衚瀺ããReactã³ã³ããŒãã³ãã®ç°¡åãªäŸã§ãïŒ
import React, { useState, useEffect } from 'react';
function ProductInventory({ productId }) {
const [stockLevel, setStockLevel] = useState(null);
const [isLoading, setIsLoading] = useState(true);
const [error, setError] = useState(null);
useEffect(() => {
async function fetchStockLevel() {
setIsLoading(true);
try {
// å®éã®APIãšã³ããã€ã³ãã«çœ®ãæããŠãã ãã
const response = await fetch(`/api/products/${productId}/inventory`);
if (!response.ok) {
throw new Error(`HTTPãšã©ãŒïŒ ã¹ããŒã¿ã¹: ${response.status}`);
}
const data = await response.json();
setStockLevel(data.stock);
} catch (error) {
setError(error);
} finally {
setIsLoading(false);
}
}
fetchStockLevel();
}, [productId]);
if (isLoading) {
return èªã¿èŸŒã¿äž...
;
}
if (error) {
return ãšã©ãŒ: {error.message}
;
}
return (
åšåº«ã¬ãã«: {stockLevel}
{stockLevel <= 5 && åšåº«ãããïŒ
}
);
}
export default ProductInventory;
説æïŒ
- ãã®ã³ã³ããŒãã³ãã¯ã
useEffectããã¯ã䜿çšããŠAPIããååã®åšåº«ã¬ãã«ãååŸããŸãã useStateããã¯ã䜿çšããŠãåšåº«ã¬ãã«ãèªã¿èŸŒã¿ç¶æ ããšã©ãŒã¹ããŒãã管çããŸãã- ããŒã¿ã®ååŸäžã¯èªã¿èŸŒã¿ã¡ãã»ãŒãžã衚瀺ããŸãã
- ããŒã¿ã®ååŸäžã«ãšã©ãŒãçºçããå Žåã¯ãšã©ãŒã¡ãã»ãŒãžã衚瀺ããŸãã
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