74 lines
2.8 KiB
JavaScript
74 lines
2.8 KiB
JavaScript
/*
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! /server/routers.js
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? Dynamic Express router loader matching the action loader pattern.
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*/
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// % imports
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import fs from 'fs';
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import path from 'path';
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import { fileURLToPath, pathToFileURL } from 'url';
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import express from 'express';
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const __filename = fileURLToPath(import.meta.url);
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const __dirname = path.dirname(__filename);
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// % Target directory where the actual route files reside
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const routersDir = path.join(__dirname, '..', 'routers');
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// $ debug-output
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console.info('[Paths] Routers:', routersDir);
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export const registeredEndpoints = [];
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// $ recursive function to load routers and extract clean endpoints
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async function loadRouters(dir = routersDir, baseDir = routersDir, currentPrefix = '') {
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let mainRouter = express.Router();
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const entries = fs.readdirSync(dir, { withFileTypes: true });
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for (const entry of entries) {
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const fullPath = path.join(dir, entry.name);
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if (entry.isDirectory()) {
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// ~ handle subdirectory and extend prefix
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const subPrefix = `${currentPrefix}/${entry.name}`;
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const subRouter = await loadRouters(fullPath, baseDir, subPrefix);
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mainRouter.use(`/${entry.name}`, subRouter);
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} else if (entry.isFile() && entry.name !== 'index.js' && !entry.name.startsWith('.') && entry.name.endsWith('.js')) {
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const fileUrl = pathToFileURL(fullPath).href;
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const module = await import(fileUrl);
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const routeHandler = module.default || module;
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const routeName = entry.name.replace(/\.js$/, '');
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const subRouter = express.Router();
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// ~ pass subrouter into the handler function
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if (typeof routeHandler === 'function') {
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await routeHandler(subRouter);
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}
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const finalFolderPrefix = currentPrefix === '' ? '' : currentPrefix;
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const endpointPath = routeName === 'root' ? finalFolderPrefix || '/' : `${finalFolderPrefix}/${routeName}`;
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// ~ extract methods and paths directly from the sub-router stack
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subRouter.stack.forEach(layer => {
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if (layer.route) {
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const methods = Object.keys(layer.route.methods).join(', ').toUpperCase();
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const subRoutePath = layer.route.path === '/' ? '' : layer.route.path;
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registeredEndpoints.push(`${methods} ${endpointPath}${subRoutePath}`.replace(/\/+/g, '/'));
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}
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});
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if (routeName === 'root') {
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mainRouter.use('/', subRouter);
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} else {
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mainRouter.use(`/${routeName}`, subRouter);
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}
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}
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}
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return mainRouter;
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}
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// $ Initialize asynchronously and export the loaded routers object
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const routers = await loadRouters();
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// $ export
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export default routers; |