Roughing out the demo app

node_modules/json-server/lib/server/defaults.js

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+"use strict";
+
+const fs = require('fs');
+
+const path = require('path');
+
+const express = require('express');
+
+const logger = require('morgan');
+
+const cors = require('cors');
+
+const compression = require('compression');
+
+const errorhandler = require('errorhandler');
+
+const objectAssign = require('object-assign');
+
+const bodyParser = require('./body-parser');
+
+module.exports = function (opts) {
+  const userDir = path.join(process.cwd(), 'public');
+  const defaultDir = path.join(__dirname, '../../dist');
+  const staticDir = fs.existsSync(userDir) ? userDir : defaultDir;
+  opts = objectAssign({
+    logger: true,
+    static: staticDir
+  }, opts);
+  const arr = []; // Compress all requests
+
+  if (!opts.noGzip) {
+    arr.push(compression());
+  } // Enable CORS for all the requests, including static files
+
+
+  if (!opts.noCors) {
+    arr.push(cors({
+      origin: true,
+      credentials: true
+    }));
+  }
+
+  if (process.env.NODE_ENV === 'development') {
+    // only use in development
+    arr.push(errorhandler());
+  } // Serve static files
+
+
+  arr.push(express.static(opts.static)); // Logger
+
+  if (opts.logger) {
+    arr.push(logger('dev', {
+      skip: req => process.env.NODE_ENV === 'test' || req.path === '/favicon.ico'
+    }));
+  } // No cache for IE
+  // https://support.microsoft.com/en-us/kb/234067
+
+
+  arr.push((req, res, next) => {
+    res.header('Cache-Control', 'no-cache');
+    res.header('Pragma', 'no-cache');
+    res.header('Expires', '-1');
+    next();
+  }); // Read-only
+
+  if (opts.readOnly) {
+    arr.push((req, res, next) => {
+      if (req.method === 'GET') {
+        next(); // Continue
+      } else {
+        res.sendStatus(403); // Forbidden
+      }
+    });
+  } // Add middlewares
+
+
+  if (opts.bodyParser) {
+    arr.push(bodyParser);
+  }
+
+  return arr;
+};