112 lines
3.4 KiB
JavaScript
112 lines
3.4 KiB
JavaScript
import express from 'express';
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import swaggerUiDist from 'swagger-ui-dist';
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import { getOpenApiSpec } from '../openapiSpec.js';
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const swaggerDistPath = swaggerUiDist.getAbsoluteFSPath();
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function renderDocsHtml() {
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return `<!DOCTYPE html>
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<html lang="en">
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<head>
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<meta charset="UTF-8">
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<title>Dash API</title>
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<link rel="stylesheet" type="text/css" href="./swagger-ui.css" />
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<link rel="icon" type="image/png" href="./favicon-32x32.png" sizes="32x32" />
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<link rel="icon" type="image/png" href="./favicon-16x16.png" sizes="16x16" />
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<style>
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html {
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box-sizing: border-box;
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overflow-y: scroll;
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}
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*, *:before, *:after {
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box-sizing: inherit;
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}
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body {
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margin: 0;
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background: #fafafa;
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}
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</style>
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</head>
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<body>
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<div id="swagger-ui"></div>
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<script src="./swagger-ui-bundle.js"></script>
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<script src="./swagger-ui-standalone-preset.js"></script>
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<script>
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window.onload = function() {
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window.ui = SwaggerUIBundle({
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url: './openapi.json',
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dom_id: '#swagger-ui',
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deepLinking: true,
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presets: [
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SwaggerUIBundle.presets.apis,
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SwaggerUIStandalonePreset
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],
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plugins: [
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SwaggerUIBundle.plugins.DownloadUrl
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],
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layout: 'StandaloneLayout',
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requestInterceptor: (req) => {
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req.credentials = 'include';
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return req;
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}
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});
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};
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</script>
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</body>
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</html>`;
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}
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/**
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* Registers documentation and interactive API tester under /docs/.
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* @param {import('express').Application} app - Express app
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* @param {string} [basePath=''] - Base path (e.g. '/api')
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*/
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export function register(app, basePath = '') {
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const docsRouter = express.Router();
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// Redirect /docs (or /api/docs) to /docs/ so relative assets resolve properly
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docsRouter.use((req, res, next) => {
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const rawPath = req.originalUrl.split('?')[0];
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if (rawPath === '/docs' || rawPath === '/api/docs' || rawPath === '/api/docs/') {
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const query = req.originalUrl.includes('?') ? '?' + req.originalUrl.split('?')[1] : '';
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return res.redirect(301, '/docs/' + query);
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}
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next();
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});
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// Serve OpenAPI 3.0 specification JSON
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docsRouter.get('/openapi.json', (_req, res) => {
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try {
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const spec = getOpenApiSpec();
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res.setHeader('Content-Type', 'application/json; charset=utf-8');
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res.send(JSON.stringify(spec, null, 2));
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} catch (err) {
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console.error('Failed to generate OpenAPI spec:', err);
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res.status(500).json({ error: 'Failed to generate OpenAPI specification' });
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}
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});
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// Serve HTML UI for /docs/ and /docs/index.html
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docsRouter.get('/', (_req, res) => {
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res.setHeader('Content-Type', 'text/html; charset=utf-8');
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res.send(renderDocsHtml());
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});
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docsRouter.get('/index.html', (_req, res) => {
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res.setHeader('Content-Type', 'text/html; charset=utf-8');
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res.send(renderDocsHtml());
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});
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// Serve static assets from swagger-ui-dist (CSS, JS bundles, icons)
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docsRouter.use(express.static(swaggerDistPath, { index: false }));
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// Mount on /docs
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app.use('/docs', docsRouter);
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// Also mount on /api/docs and alias /api/openapi.json if basePath is set
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if (basePath) {
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app.use(basePath + '/docs', docsRouter);
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app.get(basePath + '/openapi.json', (_req, res) => res.redirect(301, '/docs/openapi.json'));
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}
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}
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