${svg}

${label}${tlc ? ` (${tlc})` : \"\"} — size ${size}

\n`;\n return new Response(html, {\n headers: { \"Content-Type\": \"text/html; charset=utf-8\", ...CACHE_HEADERS },\n });\n }\n\n return new Response(\"Not Found\", { status: 404 });\n}\n\nfunction docsPage(origin: string): string {\n const stationExamples = [\n { style: \"jre\" as BadgeStyle, line: \"JY\", number: \"01\", label: \"Yamanote Line — Tokyo\", path: \"/jre/JY/01.svg\" },\n { style: \"jre\" as BadgeStyle, line: \"JK\", number: \"25\", label: \"Keihin-Tohoku — Hamamatsuchō\", path: \"/jre/JK/25.svg\" },\n { style: \"tssn\" as BadgeStyle, line: \"G\", number: \"09\", label: \"Tokyo Metro Ginza — Akasaka-mitsuke\", path: \"/tssn/G/09.svg\" },\n { style: \"tssn\" as BadgeStyle, line: \"M\", number: \"25\", label: \"Tokyo Metro Marunouchi — Ikebukuro\", path: \"/tssn/M/25.svg\" },\n { style: \"jre\" as BadgeStyle, line: \"JC\", number: \"01\", label: \"Chūō Rapid — Tokyo\", path: \"/jre/JC/01.svg\" },\n { style: \"tssn\" as BadgeStyle, line: \"A\", number: \"18\", label: \"Toei Asakusa — Mita\", path: \"/tssn/A/18.svg\" },\n { style: \"jre\" as BadgeStyle, line: \"JO\", number: \"09\", label: \"Yokosuka–Sōbu Rapid — Akihabara\", path: \"/jre/JO/09.svg\" },\n { style: \"tssn\" as BadgeStyle, line: \"Z\", number: \"04\", label: \"Tokyo Metro Hanzōmon — Nagatacho\", path: \"/tssn/Z/04.svg\" },\n { style: \"yk\" as BadgeStyle, line: \"U\", number: \"01\", label: \"Yurikamome — Shimbashi\", path: \"/yk/U/01.svg\" },\n ];\n\n const stationBadges = stationExamples\n .map(({ style, line, number, label, path }) => {\n const svg60 = renderBadgeSVG({ style, line, number, size: 60 });\n return `

${svg60}

\n ${path}\n ${label}\n

`;\n })\n .join(\"\\n\");\n\n const lineExamples = [\n { style: \"jre\" as BadgeStyle, line: \"JY\", label: \"Yamanote Line\", path: \"/jre/JY.svg\" },\n { style: \"jre\" as BadgeStyle, line: \"JK\", label: \"Keihin-Tohoku Line\", path: \"/jre/JK.svg\" },\n { style: \"tssn\" as BadgeStyle, line: \"G\", label: \"Tokyo Metro Ginza\", path: \"/tssn/G.svg\" },\n { style: \"tssn\" as BadgeStyle, line: \"M\", label: \"Tokyo Metro Marunouchi\", path: \"/tssn/M.svg\" },\n { style: \"tssn\" as BadgeStyle, line: \"A\", label: \"Toei Asakusa\", path: \"/tssn/A.svg\" },\n { style: \"tssn\" as BadgeStyle, line: \"Z\", label: \"Tokyo Metro Hanzōmon\", path: \"/tssn/Z.svg\" },\n { style: \"yk\" as BadgeStyle, line: \"U\", label: \"Yurikamome\", path: \"/yk/U.svg\" },\n ];\n\n const lineBadges = lineExamples\n .map(({ style, line, label, path }) => {\n const svg60 = renderBadgeSVG({ style, line, size: 60 });\n return `

${svg60}

\n ${path}\n ${label}\n

`;\n })\n .join(\"\\n\");\n\n const tlcExample = renderBadgeSVG({\n style: \"jre\",\n line: \"JY\",\n number: \"20\",\n size: 60,\n tlc: \"SBY\",\n });\n\n const colorEntries = Object.entries(LINE_COLORS)\n .map(([code, hex]) => {\n const badge = renderBadgeSVG({ style: \"jre\", line: code, number: \"01\", size: 24 });\n return `${badge} ${code}`;\n })\n .join(\"\\n\");\n\n return `\n\n\n\nJRSN Badge API\n\n\n

JRSN Badge API

Render Japanese rail station number badges as SVG, PNG, or HTML.

\n\n

Station Badges

\n${stationBadges}\n

\n\n

Line Symbols

\n${lineBadges}\n

\n\n

TLC (Three-Letter Code)

\n ${tlcExample}\n

\n /jre/JY/20.svg?tlc=SBY&size=60
\n Shibuya — Yamanote Line\n

\n\n

Usage

GET /jre/{line}.{format}                — square line symbol (JRLS)\nGET /jre/{line}/{number}.{format}       — square station badge (JRSN)\nGET /tssn/{line}.{format}               — circle line symbol (TSLS)\nGET /tssn/{line}/{number}.{format}      — circle station badge (TSSN)\nGET /yk/{line}.{format}                 — solid circle line symbol (YKLS)\nGET /yk/{line}/{number}.{format}        — solid circle station badge (YKSN)

\n\n\n\n\n\n\n\n\n\n

Parameter	Description
`line`	Line code, e.g. `JY`, `G`, `JK`
`number`	Station number, e.g. `01`, `25`
`format`	`svg`, `png`, or `html`
`size`	Badge size in px (default: 30)
`tlc`	Three-letter station code, e.g. `SBY` (JRE station badges only)
`color`	Hex color override (without #), e.g. `FF0000`

\n\n

Supported Line Codes

\n${colorEntries}\n

\n\n

Special Thanks

Badge designs based on the JRE Station Numbering template on Wikipedia.

\n\n`;\n}\n","deleted","label",[100],"permalink","https://www.val.town/x/jdan/jrsn-api/code/main.ts","extension","actionData","errors"]