{"id":2112,"date":"2026-05-26T08:05:43","date_gmt":"2026-05-26T08:05:43","guid":{"rendered":"https:\/\/www.vpascode.com\/ja\/docs\/uncategorized\/mermaid-js-sequence-diagram-syntax-guide\/"},"modified":"2026-05-26T08:05:43","modified_gmt":"2026-05-26T08:05:43","slug":"mermaid-js-sequence-diagram-syntax-guide","status":"publish","type":"ld_docs","link":"https:\/\/www.vpascode.com\/ja\/docs\/vpascode-docs\/mermaid-js-sequence-diagram-syntax-guide\/","title":{"rendered":"Mermaid.js \u30b7\u30fc\u30b1\u30f3\u30b9\u56f3\u306e\u69cb\u6587\u30ac\u30a4\u30c9"},"content":{"rendered":"

\u30b7\u30fc\u30b1\u30f3\u30b9\u56f3\u3068\u306f\u4f55\u3067\u3059\u304b\uff1f<\/h2>\n

A \u30b7\u30fc\u30b1\u30f3\u30b9\u56f3<\/strong>\u306f\u91cd\u8981\u306a\u884c\u52d5\u7684UML\u56f3<\/strong>\u306f\u3001\u7dda\u5f62\u30bf\u30a4\u30e0\u30e9\u30a4\u30f3\u4e0a\u3067\u7570\u306a\u308b\u30b7\u30b9\u30c6\u30e0\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u9593\u306e\u30e1\u30c3\u30bb\u30fc\u30b8\u3001\u95a2\u6570\u547c\u3073\u51fa\u3057\u3001\u30c7\u30fc\u30bf\u30da\u30a4\u30ed\u30fc\u30c9\u306e\u6642\u7cfb\u5217\u7684\u306a\u6d41\u308c\u3092\u53ef\u8996\u5316\u3059\u308b\u3053\u3068\u3092\u76ee\u7684\u3068\u3057\u3066\u3044\u307e\u3059\u3002\u30b3\u30a2\u306aUML\u56f3\u306e\u7a2e\u985e<\/strong>\u3068\u3057\u3066\u8a8d\u8b58\u3055\u308c\u3066\u304a\u308a\u3001X\u8ef8\u306b\u6cbf\u3063\u3066\u30b7\u30b9\u30c6\u30e0\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u3092\u5782\u76f4\u306e\u30e9\u30a4\u30d5\u30e9\u30a4\u30f3\u3068\u3057\u3066\u7a4d\u307f\u91cd\u306d\u3001Y\u8ef8\u306b\u6cbf\u3063\u3066\u30e1\u30c3\u30bb\u30fc\u30b8\u306e\u3084\u308a\u53d6\u308a\u3092\u8ffd\u8de1\u3059\u308b\u3053\u3068\u3067\u3001\u5b9f\u884c\u6642\u306e\u76f8\u4e92\u4f5c\u7528\u3092\u30de\u30c3\u30d4\u30f3\u30b0\u3057\u307e\u3059\u3002\u3053\u306e\u30d6\u30eb\u30fc\u30d7\u30ea\u30f3\u30c8\u306f\u3001\u5206\u6563\u578bAPI\u306e\u30cf\u30f3\u30c9\u30b7\u30a7\u30a4\u30af\u306e\u30c7\u30d0\u30c3\u30b0\u3001\u30de\u30a4\u30af\u30ed\u30b5\u30fc\u30d3\u30b9\u306e\u30aa\u30fc\u30b1\u30b9\u30c8\u30ec\u30fc\u30b7\u30e7\u30f3\u7d4c\u8def\u3001\u30ea\u30a2\u30eb\u30bf\u30a4\u30e0\u306e\u30e6\u30fc\u30b6\u30fc\u8a8d\u8a3c\u30d5\u30ed\u30fc\u306e\u958b\u767a\u306b\u304a\u3044\u3066\u975e\u5e38\u306b\u8cb4\u91cd\u3067\u3059\u3002<\/p>\n

With Mermaid.js<\/strong>\u3092\u4f7f\u7528\u3059\u308b\u3068\u3001\u76f4\u611f\u7684\u306a\u30c6\u30ad\u30b9\u30c8\u69cb\u9020\u3092\u4f7f\u3063\u3066\u8907\u96d1\u306a\u6642\u9593\u7684\u30d7\u30ed\u30bb\u30b9\u3092\u30b9\u30af\u30ea\u30d7\u30c8\u5316\u3067\u304d\u307e\u3059\u3002\u30a8\u30f3\u30b8\u30f3\u306f\u5782\u76f4\u65b9\u5411\u306e\u9593\u9694\u3092\u81ea\u52d5\u7684\u306b\u51e6\u7406\u3057\u3001\u30e1\u30c3\u30bb\u30fc\u30b8\u306e\u77e2\u5370\u306e\u6574\u5217\u3092\u7ba1\u7406\u3057\u3001\u5b9f\u884c\u6642\u306e\u30a2\u30af\u30c6\u30a3\u30d9\u30fc\u30b7\u30e7\u30f3\u30d6\u30ed\u30c3\u30af\u3092\u30ad\u30e3\u30f3\u30d0\u30b9\u4e0a\u3067\u660e\u78ba\u306b\u63cf\u753b\u3057\u307e\u3059\u3002<\/p>\n

\u30b3\u30a2\u69cb\u6587\u30ac\u30a4\u30c9\uff1a\u8981\u7d20\u3068\u69cb\u9020<\/h2>\n

Mermaid\u3067\u6b63\u78ba\u3067\u30b9\u30ad\u30e3\u30f3\u3057\u3084\u3059\u3044UML\u30b7\u30fc\u30b1\u30f3\u30b9\u56f3\u3092\u8a2d\u8a08\u3059\u308b\u306b\u306f\u3001\u53c2\u52a0\u8005\u5ba3\u8a00\u3001\u30e1\u30c3\u30bb\u30fc\u30b8\u77e2\u5370\u306e\u30d0\u30ea\u30a8\u30fc\u30b7\u30e7\u30f3\u3001\u660e\u793a\u7684\u306a\u30e9\u30a4\u30d5\u30e9\u30a4\u30f3\u3001\u6761\u4ef6\u4ed8\u304d\u30d6\u30ed\u30c3\u30af\u69cb\u9020\u3092\u7fd2\u5f97\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n

1. \u53c2\u52a0\u8005\u3068\u30a2\u30af\u30bf\u30fc\u306e\u5ba3\u8a00<\/h3>\n

\u6a19\u6e96\u306e\u30b7\u30b9\u30c6\u30e0\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u3092\u5ba3\u8a00\u3059\u308b\u306b\u306f\u3001participant<\/code>\u30ad\u30fc\u30ef\u30fc\u30c9\u3092\u4f7f\u7528\u3057\u307e\u3059\u3002\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u304c\u4eba\u9593\u306e\u30a8\u30f3\u30c9\u30e6\u30fc\u30b6\u30fc\u307e\u305f\u306f\u5916\u90e8\u30aa\u30da\u30ec\u30fc\u30bf\u30fc\u3092\u8868\u3059\u5834\u5408\u306f\u3001actor<\/code>\u30ad\u30fc\u30ef\u30fc\u30c9\u3092\u4f7f\u7528\u3057\u3066\u3001\u30ad\u30e3\u30f3\u30d0\u30b9\u4e0a\u306b\u6a19\u6e96\u306e\u68d2\u4eba\u9593\u30a2\u30a4\u30b3\u30f3\u3092\u63cf\u753b\u3057\u307e\u3059\uff1a<\/p>\n

\n
\nMermaid<\/span>
\n
\n<\/path><\/path><\/svg>
\nVPasCode\u3067Mermaid\u3092\u7de8\u96c6<\/span>
\n<\/a>\n<\/div>\n
\n
\r\n
\r\n Mermaid<\/span>\r\n \r\n <\/path><\/path><\/svg>\r\n Edit Mermaid in VPasCode<\/span>\r\n <\/a>\r\n <\/div>\r\n
\r\n 
sequenceDiagram\r\n    actor Client\r\n    participant API as Gateway Router<\/code><\/pre>                <\/div>\r\n                
\r\n                    \r\n                        <\/path><\/path><\/svg>\r\n                        Edit Mermaid in VPasCode<\/span>\r\n                    <\/a>\r\n                <\/div>\r\n            <\/div>\r\n            \n<\/p><\/div>\n
\n
\n<\/path><\/path><\/svg>
\nVPasCode\u3067Mermaid\u3092\u7de8\u96c6<\/span>
\n<\/a>\n<\/div>\n<\/div>\n
\"\"<\/p>\n
\u30d7\u30ed\u306e\u30c6\u30af\u30cb\u30c3\u30af\uff1a<\/em>\u6b21\u306eas<\/code>\u30ad\u30fc\u30ef\u30fc\u30c9\u3092\u4f7f\u3063\u3066\u3001\u9577\u3044\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u540d\u3092\u7c21\u6f54\u306a\u5185\u90e8\u5225\u540d\u306b\u30de\u30c3\u30d4\u30f3\u30b0\u3057\u3001\u30e1\u30c3\u30bb\u30fc\u30b8\u30b9\u30af\u30ea\u30d7\u30c8\u3092\u7c21\u6f54\u304b\u3064\u8aad\u307f\u3084\u3059\u304f\u4fdd\u3061\u307e\u3059\u3002<\/p>\n
2. \u30e1\u30c3\u30bb\u30fc\u30b8\u77e2\u5370\u306e\u30d5\u30a9\u30fc\u30de\u30c3\u30c8<\/h3>\n
\u4f7f\u7528\u3059\u308b\u7dda\u306e\u7a2e\u985e\u3068\u77e2\u5370\u306e\u5148\u7aef\u306f\u3001\u30b7\u30b9\u30c6\u30e0\u53c2\u52a0\u8005\u9593\u306e\u901a\u4fe1\u30b9\u30bf\u30a4\u30eb\u3092\u6c7a\u5b9a\u3057\u307e\u3059\uff1a<\/p>\n