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1. ãã€ã³ãããŒãã€ã³ã飿º
ããã¯æãåçŽãªé£æºãã¿ãŒã³ã§ã2ã€ã®ã·ã¹ãã ãAPIãä»ããŠçŽæ¥æ¥ç¶ãããŸããæåã¯å®è£ ãç°¡åã§ãããã·ã¹ãã ã®æ°ãå¢ããã«ã€ããŠè€éã«ãªããç¶æãå°é£ã«ãªãå¯èœæ§ããããŸããå°èŠæš¡äŒæ¥ãäŒèšãœãããŠã§ã¢ããªã³ã©ã€ã³ã¹ãã¢ã«çŽæ¥æ¥ç¶ããŠæ³šæåŠçãè¡ãããšãæ³åããŠã¿ãŠãã ãããæé·ããŠãµãŒãã¹ã远å ããã«ã€ããŠããã®çŽæ¥æ¥ç¶ã¯è匱ã«ãªããŸãã
2. ããã¢ã³ãã¹ããŒã¯é£æº
ãã®ãã¿ãŒã³ã§ã¯ãäžå€®ã®ãããè€æ°ã®ã·ã¹ãã éã®ä»²ä»åœ¹ãšããŠæ©èœããŸããåã·ã¹ãã ã¯ããã«æ¥ç¶ãããããããŒã¿ã®å€æãšã«ãŒãã£ã³ã°ãåŠçããŸããããã«ããã飿ºãç°¡çŽ åãããè€æ°ã®ãã€ã³ãããŒãã€ã³ãæ¥ç¶ã管çããè€éãã軜æžãããŸããäŸãšããŠã¯ãæ§ã ãªå éšã¢ããªã±ãŒã·ã§ã³ã®ãããšããŠæ©èœãããšã³ã¿ãŒãã©ã€ãºãµãŒãã¹ãã¹ïŒESBïŒãæããããŸãã
3. ã¡ãã»ãŒãžãã¥ãŒé£æº
ãã®ãã¿ãŒã³ã§ã¯ãã¡ãã»ãŒãžãã¥ãŒã䜿çšããŠã·ã¹ãã ãåé¢ããéåæéä¿¡ãå¯èœã«ããŸããã·ã¹ãã ã¯ãã¥ãŒã«ã¡ãã»ãŒãžãéä¿¡ãããã®åŸãä»ã®ã·ã¹ãã ããã®ã¡ãã»ãŒãžãæ¶è²»ããŸããããã«ãããã·ã¹ãã ãããŒã¿äº€æã®ããã«åæã«ãªã³ã©ã€ã³ã§ããå¿ èŠããªããããã¹ã±ãŒã©ããªãã£ãšä¿¡é Œæ§ãåäžããŸããEã³ããŒã¹ãã©ãããã©ãŒã ãã¡ãã»ãŒãžãã¥ãŒã䜿çšããŠæ³šæãåŠçããããšãèããŠã¿ãŠãã ãããæ³šæã¯ãã¥ãŒã«å ¥ãããåŸã§åŠçã§ãããããæ³šæåŠçã·ã¹ãã ã¯24æé365æ¥å©çšå¯èœã§ããå¿ èŠã¯ãããŸããã
4. ãã€ã¯ããµãŒãã¹é£æº
ãã®ãã¿ãŒã³ã§ã¯ãã¢ããªã·ãã¯ãªã¢ããªã±ãŒã·ã§ã³ããAPIãä»ããŠçžäºã«éä¿¡ãããããå°ããç¬ç«ãããµãŒãã¹ïŒãã€ã¯ããµãŒãã¹ïŒã«åå²ããŸããããã«ãããã¹ã±ãŒã©ããªãã£ãä¿å®æ§ãå埩åãåäžããŸãã倧æã¡ãã£ã¢äŒæ¥ãããããªãã©ã³ã¹ã³ãŒãã£ã³ã°ãã³ã³ãã³ãé ä¿¡ããŠãŒã¶ãŒèªèšŒã®ããã«ãã€ã¯ããµãŒãã¹ã䜿çšããŠã¹ããªãŒãã³ã°ãã©ãããã©ãŒã ãæ§ç¯ããããšããããŸãã
5. APIäž»å°ã®æ¥ç¶æ§
ãã®ã¢ãããŒãã¯ãããžãã¹ã®èœåããç°ãªããã£ãã«ãã¢ããªã±ãŒã·ã§ã³ã§åå©çšå¯èœãªAPIãšããŠå ¬éããããšã«çŠç¹ãåœãŠãŠããŸããæŠç¥çè³ç£ãšããŠã®APIã®èšèšãšç®¡çãéèŠããŸããã°ããŒãã«ãªå°å£²æ¥è ã¯ã泚æç®¡çã補åã«ã¿ãã°ã顧客ãããã¡ã€ã«çšã®APIãå ¬éããããŸããŸãªéšéãå€éšããŒãããŒããããã®APIäžã«ã¢ããªã±ãŒã·ã§ã³ãæ§ç¯ã§ããããã«ããããšããããŸãã
API飿ºã®æè¡ãšæšæº
API飿ºã§äžè¬çã«äœ¿çšãããæè¡ãšæšæºãããã€ããããŸãã
- REST (Representational State Transfer): HTTPã¡ãœããïŒGETãPOSTãPUTãDELETEïŒã䜿çšããŠãªãœãŒã¹ã«ã¢ã¯ã»ã¹ãæäœããWeb APIãæ§ç¯ããããã®ãåºã䜿çšãããŠããã¢ãŒããã¯ãã£ã¹ã¿ã€ã«ã§ããREST APIã¯ã¹ããŒãã¬ã¹ã§ãã¹ã±ãŒã©ãã«ã§ãããçè§£ããããã§ãã
- SOAP (Simple Object Access Protocol): XMLã䜿çšããŠã¢ããªã±ãŒã·ã§ã³éã§ããŒã¿ã亀æããã¡ãã»ãŒãžã³ã°ãããã³ã«ã§ããSOAP APIã¯REST APIãããè€éã§ãããã»ãã¥ãªãã£ããã©ã³ã¶ã¯ã·ã§ã³ç®¡çãªã©ã®æ©èœãæäŸããŸãã
- GraphQL: APIçšã®ã¯ãšãªèšèªã§ãã¯ã©ã€ã¢ã³ããå¿ èŠãªç¹å®ã®ããŒã¿ãèŠæ±ã§ãããããéå°ãªããŒã¿ååŸãæžãããããã©ãŒãã³ã¹ãåäžãããŸãã
- JSON (JavaScript Object Notation): Web APIã§åºã䜿çšãããŠãã軜éãªããŒã¿äº€æãã©ãŒãããã§ãã
- XML (Extensible Markup Language): ããŒã¿ãæ§é åããã·ã¹ãã éã§æ å ±ã亀æããããã«äœ¿çšãããããŒã¯ã¢ããèšèªã§ãã
- OAuth (Open Authorization): ãŠãŒã¶ãŒãèªèšŒæ å ±ãå ±æããããšãªãããµãŒãããŒãã£ã®ã¢ããªã±ãŒã·ã§ã³ã«ãªãœãŒã¹ãžã®ã¢ã¯ã»ã¹ãèš±å¯ã§ããããã«ããèªå¯ãããã³ã«ã§ãã
- OpenID Connect: OAuthã®äžã«æ§ç¯ãããæ¬äººç¢ºèªãæäŸããèªèšŒãããã³ã«ã§ãã
- APIã²ãŒããŠã§ã€ïŒ APIã®åã«äœçœ®ãã管çã¬ã€ã€ãŒã§ãã»ãã¥ãªãã£ãã¬ãŒãå¶éãã¢ãã¿ãªã³ã°ãªã©ã®æ©èœãæäŸããŸãã
API飿ºããã»ã¹ïŒã¹ããããã€ã¹ãããã¬ã€ã
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1. 飿ºèŠä»¶ã®å®çŸ©
飿ºã®ç®æšãšç®çãæç¢ºã«å®çŸ©ããŸããã·ã¹ãã éã§ã©ã®ãããªããŒã¿ã亀æããå¿ èŠããããŸããïŒã©ã®ãããªæ©èœãå ¬éããå¿ èŠããããŸããïŒããã©ãŒãã³ã¹ãšã»ãã¥ãªãã£ã®èŠä»¶ã¯äœã§ããïŒäŸãã°ãå»çæäŸè ã¯ãæ£è ããªã³ã©ã€ã³ã§èªåã®å»çæ å ±ã«ã¢ã¯ã»ã¹ã§ããããã«ããããã«ãé»åå¥åº·èšé²ïŒEHRïŒã·ã¹ãã ãšæ£è ããŒã¿ã«ã飿ºãããå¿ èŠããããããããŸããã
2. APIãšãšã³ããã€ã³ãã®ç¹å®
飿ºããå¿ èŠãããAPIãç¹å®ããŸãããã®æ©èœãå¶éãèªèšŒèŠä»¶ãçè§£ããŸããã¢ã¯ã»ã¹ããå¿ èŠãããç¹å®ã®ãšã³ããã€ã³ããæ±ºå®ããŸããAPIããã¥ã¡ã³ãã培åºçã«ç¢ºèªããŸããç©æµäŒç€Ÿã¯ããªã¢ã«ã¿ã€ã ã§è²šç©ã远跡ããããã«ãé 鿥è ã®APIãšé£æºããå¿ èŠããããããããŸããã
3. 飿ºã¢ãããŒãã®éžæ
ç¹å®ã®èŠä»¶ãšå¶çŽã«åºã¥ããŠãé©åãªé£æºãã¿ãŒã³ãéžæããŸããè€éããã¹ã±ãŒã©ããªãã£ãä¿¡é Œæ§ãªã©ã®èŠçŽ ãèæ ®ããŸãããã€ã³ãããŒãã€ã³ã飿ºãããã¢ã³ãã¹ããŒã¯é£æºããŸãã¯ã¡ãã»ãŒãžãã¥ãŒé£æºã®ãããã䜿çšããããæ±ºå®ããŸããåçŽãªé£æºã®å Žåã¯ãçŽæ¥çãªãã€ã³ãããŒãã€ã³ãæ¥ç¶ã§ååãããããŸãããããè€éãªã·ããªãªã§ã¯ãããã¢ã³ãã¹ããŒã¯ãŸãã¯ã¡ãã»ãŒãžãã¥ãŒã®ã¢ãããŒããããé©åãããããŸããã
4. 飿ºãããŒã®èšèš
ã·ã¹ãã éã®ããŒã¿ãããŒãèšèšããŸããããŒã¿ãç°ãªããã©ãŒãããéã§ã©ã®ããã«å€æããããããã³ã°ãããããæ±ºå®ããŸãããšã©ãŒãã³ããªã³ã°ãšäŸå€ç®¡çãèæ ®ããŸããããŒã¿ãããŒãšå€æããžãã¯ãæŠèª¬ãã詳现ãªé£æºãã«ãŒããªã³ããäœæããŸãããã®ãã«ãŒããªã³ãã¯ãèãããããã¹ãŠã®ã·ããªãªãšãšã©ãŒæ¡ä»¶ãç¶²çŸ ããå¿ èŠããããŸãã
5. 飿ºã®éçº
é©åãªããã°ã©ãã³ã°èšèªãšããŒã«ã䜿çšããŠé£æºãéçºããŸããããŒã¿å€æãšãããã³ã°ããžãã¯ãå®è£ ããŸãããšã©ãŒãã³ããªã³ã°ãšäŸå€ç®¡çãå®è£ ããŸãã飿ºãæ£ããæ©èœããããšã確èªããããã«åäœãã¹ããäœæããŸãã飿ºããã»ã¹ãç°¡çŽ åããããã«é©åãªã©ã€ãã©ãªãšãã¬ãŒã ã¯ãŒã¯ãéžæããŸãã
6. 飿ºã®ãã¹ã
æ¬çªç°å¢ã«ãããã€ããåã«ãã¹ããŒãžã³ã°ç°å¢ã§é£æºã培åºçã«ãã¹ãããŸããæ©èœãã¹ããããã©ãŒãã³ã¹ãã¹ããã»ãã¥ãªãã£ãã¹ãã宿œããŸããããŒã¿ãæ£ãã亀æããã飿ºãæåŸ ãããè² è·ãåŠçã§ããããšã確èªããŸãã飿ºãããã·ã¹ãã ãã·ãŒã ã¬ã¹ã«é£æºããããšã確èªããããã«ããšã³ãããŒãšã³ãã®ãã¹ãã宿œããŸããéèæ©é¢ã¯ãååŒã®æ£ç¢ºæ§ãšã»ãã¥ãªãã£ã確ä¿ããããã«ã決æžããã»ããµãšã®API飿ºã®å³æ Œãªãã¹ãã宿œããããšããããŸãã
7. 飿ºã®ãããã€
飿ºãæ¬çªç°å¢ã«ãããã€ããŸãã飿ºãæ£ããæ©èœããŠããããšãç£èŠããŸããåé¡ãè¿ éã«æ€åºããŠè§£æ±ºããããã«ãã¢ã©ãŒããšã¢ãã¿ãªã³ã°ãå®è£ ããŸããäºæããªãåé¡ãçºçããå Žåã«åããŠãããŒã«ããã¯èšç»ãçšæããŸããæ··ä¹±ãæå°éã«æããããã«ããããã€ã段éçã«è¡ããŸãã
8. 飿ºã®ç£èŠãšä¿å®
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APIã»ãã¥ãªãã£ã«é¢ããèæ ®äºé
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- èªèšŒïŒ APIãªã¯ãšã¹ããè¡ãã¯ã©ã€ã¢ã³ãã®èº«å ã確èªããŸããOAuth 2.0ãJSON Web TokenïŒJWTïŒãªã©ã®åŒ·åãªèªèšŒã¡ã«ããºã ã䜿çšããŸãã
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