Anthony Robinson

.eslintignore

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+**/node_modules/*
+**/vendor/*
+**/*.min.js
+**/coverage/*
+**/build/*

.eslintrc.json

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+{
+  "env": {
+    "browser": true,
+    "node": true,
+    "commonjs": true,
+    "jest": true,
+    "es6": true
+  },
+  "globals": {
+    "err": true,
+    "req": true,
+    "res": true,
+    "next": true
+  },
+  "extends": "eslint:recommended",
+  "parserOptions": {
+    "sourceType": "module"
+  },
+  "rules": {
+    "no-console": "off",
+    "indent": [ "error", 2 ],
+    "quotes": ["error", "single", { "allowTemplateLiterals": true }],
+    "comma-dangle": ["error", "always-multiline"],
+    "semi": [ "error", "always" ]
+  }
+}

.gitignore

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+# 401 JS
+db
+.env
+temp
+build
+
+# Created by https://www.gitignore.io/api/vim,osx,node,linux,windows
+### Linux ###
+*~
+
+# temporary files which can be created if a process still has a handle open of a deleted file
+.fuse_hidden*
+
+# KDE directory preferences
+.directory
+
+# Linux trash folder which might appear on any partition or disk
+.Trash-*
+
+# .nfs files are created when an open file is removed but is still being accessed
+.nfs*
+
+### Node ###
+# Logs
+logs
+*.log
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*
+
+# Runtime data
+pids
+*.pid
+*.seed
+*.pid.lock
+
+# Directory for instrumented libs generated by jscoverage/JSCover
+lib-cov
+
+# Coverage directory used by tools like istanbul
+coverage
+
+# nyc test coverage
+.nyc_output
+
+# Grunt intermediate storage (http://gruntjs.com/creating-plugins#storing-task-files)
+.grunt
+
+# Bower dependency directory (https://bower.io/)
+bower_components
+
+# node-waf configuration
+.lock-wscript
+
+# Compiled binary addons (http://nodejs.org/api/addons.html)
+build/Release
+
+# Dependency directories
+node_modules/
+jspm_packages/
+
+# Typescript v1 declaration files
+typings/
+
+# Optional npm cache directory
+.npm
+
+# Optional eslint cache
+.eslintcache
+
+# Optional REPL history
+.node_repl_history
+
+# Output of 'npm pack'
+*.tgz
+
+# Yarn Integrity file
+.yarn-integrity
+
+# dotenv environment variables file
+.env
+
+
+### OSX ###
+*.DS_Store
+.AppleDouble
+.LSOverride
+
+# Icon must end with two \r
+Icon
+
+# Thumbnails
+._*
+
+# Files that might appear in the root of a volume
+.DocumentRevisions-V100
+.fseventsd
+.Spotlight-V100
+.TemporaryItems
+.Trashes
+.VolumeIcon.icns
+.com.apple.timemachine.donotpresent
+
+# Directories potentially created on remote AFP share
+.AppleDB
+.AppleDesktop
+Network Trash Folder
+Temporary Items
+.apdisk
+
+### Vim ###
+# swap
+[._]*.s[a-v][a-z]
+[._]*.sw[a-p]
+[._]s[a-v][a-z]
+[._]sw[a-p]
+# session
+Session.vim
+# temporary
+.netrwhist
+# auto-generated tag files
+tags
+
+### Windows ###
+# Windows thumbnail cache files
+Thumbs.db
+ehthumbs.db
+ehthumbs_vista.db
+
+# Folder config file
+Desktop.ini
+
+# Recycle Bin used on file shares
+$RECYCLE.BIN/
+
+# Windows Installer files
+*.cab
+*.msi
+*.msm
+*.msp
+
+# Windows shortcuts
+*.lnk
+
+# End of https://www.gitignore.io/api/vim,osx,node,linux,windows

index.js

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+'use strict';
+
+// load environment
+require('dotenv').config();
+
+// load dependencies
+const server = require('./lib/server.js');
+
+// start server
+server.start(process.env.PORT, () =>
+  console.log('server up ::', process.env.PORT));

lib/request-parser.js

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+'use strict';
+
+const url = require('url');
+const queryString = require('querystring');
+
+// a promise is an object that manages sync and async callbacks
+// with a consistant interface
+// use then and catch methods to handle success and failures
+module.exports = (req) => {
+  return new Promise((resolve, reject) => {
+    req.url = url.parse(req.url);
+    req.url.query = queryString.parse(req.url.query);
+
+    if(!(req.method === 'POST' || req.method === 'PUT'))
+      return resolve(req);
+
+    let text = '';
+    // ONLY PARSER THE POST OR PUT REQUEST BODIES
+    req.on('data', (buffer) => {
+      text += buffer.toString();
+    });
+    req.on('end', () => {
+      if (!text) text = '{}';
+      try {
+        req.body = JSON.parse(text);
+        resolve(req);
+      } catch (err) {
+        reject(err);
+      }
+    });
+  });
+};

lib/server.js

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+'use strict';
+
+const http = require('http');
+const requestParser = require('./request-parser.js');
+const cowsay = require('cowsay');
+
+const app = http.createServer((req, res) => {
+  //console.log('got a request!')
+  //console.log('req.method', req.method)
+  //console.log('req.headers', req.headers)
+
+  requestParser(req)
+  .then(req => {
+    // handle routes
+    const pathname = req.url.pathname;
+    console.log('pathname:', pathname);
+    console.log(req.headers);
+    if(req.method === 'GET' && req.url.pathname === '/'){
+      res.writeHead(200, {'Content-Type': 'text/html'});
+      res.write(`<!DOCTYPE html>
+      <html>
+        <head> <title> cowsay </title> </head>
+        <body>
+        <li><a href="/cowsay">cowsay</a></li>
+        <h2> This is my cowsay project </h2>
+        </body>
+      </html>`);
+      res.end();
+      return;  // break out of the (req, res) => {} callback
+    }
+
+    if(req.method === 'GET' && req.url.pathname === '/cowsay'){
+      console.log('query:', req.url.query);
+      var text = req.url.query.text;
+      if(text === undefined || text === ''){
+        text = 'I need something good to say';
+      }
+      let cow = cowsay.say({text: text});
+      res.writeHead(200, {'Content-Type': 'text/html'});
+      res.write(`<!DOCTYPE html>
+        <html>
+          <head> <title> cowsay </title> </head>
+          <body>
+          <pre>
+          ${cow}
+          </pre>
+          </body>
+        </html>`);
+      res.end();
+      return;
+    }
+
+    if(req.method === 'GET' && req.url.pathname === '/api/cowsay'){
+      let responseBody = {};
+      let statusCode = 200;
+      text = req.url.query.text;
+      console.log('query:', req.url.query);
+      if (JSON.stringify(req.url.query) === JSON.stringify({})) {
+        console.log('empty');
+        statusCode = 400;
+        responseBody = {
+          error: 'invalid request: query is required',
+        };
+      } else if (text === undefined || text === '') {
+        const inputError = {error: 'invalid request: text query required'};
+        responseBody = inputError;
+        statusCode = 400;
+      } else {
+        let cow = cowsay.say({text: text});
+        responseBody = {
+          content: cow,
+        };
+      }
+      res.writeHead(statusCode, {'Content-Type': 'application/json'});
+      res.write(JSON.stringify(responseBody));
+      res.end();
+      return;  // break out of the (req, res) => {} callback
+    }
+
+    if(req.method === 'POST' && req.url.pathname === '/api/cowsay'){
+      let responseBody = {};
+      let statusCode = 200;
+      if (JSON.stringify(req.body) === JSON.stringify({})) {
+        statusCode = 400;
+        responseBody = {
+          error: 'invalid request: body required',
+        };
+      } else if (req.body.text === undefined || req.body.text === ''){
+        responseBody = {
+          error: 'invalid request: text required',
+        };
+        statusCode = 400;
+      } else {
+        let cow = cowsay.say({text: req.body.text});
+        responseBody = {
+          content: cow,
+        };
+      }
+      res.writeHead(statusCode, {'Content-Type': 'application/json'});
+      res.write(JSON.stringify(responseBody));
+      res.end();
+      return;  // break out of the (req, res) => {} callback
+    }
+
+    if(req.method === 'POST' && req.url.pathname === '/echo'){
+      res.writeHead(200, {'Content-Type': 'application/json'});
+      res.write(JSON.stringify(req.body));
+      res.end();
+      return;  // break out of the (req, res) => {} callback
+    }
+
+    // 404 for any request to a non route
+    // respond to the client
+    res.writeHead(404, {
+      'Content-Type': 'text/plain',
+    });
+    res.write(`resource ${req.url.pathname} not found!`);
+    res.end();
+  })
+  .catch(err => {
+    console.log(err);
+    res.writeHead(400, { 'Content-Type': 'text/plain' });
+    res.write('bad request');
+    res.end();
+  });
+  // register routes
+});
+
+// export interface
+module.exports = {
+  start: (port, callback) => app.listen(port, callback),
+  stop: (callback) => app.close(callback),
+};