Updated Todo Node.Js app to use express4-tedious middleware

Node.js data access added as npm module express4-tedious.

Author: JocaPC

samples/features/json/todo-app/nodejs-express4-rest-api/.gitignore

@@ -2,4 +2,6 @@ node_modules/*
 bin/*.dll
 obj/*
 *.sln
-*.log
+*.log
+config/Development.json
+config/Production.json

samples/features/json/todo-app/nodejs-express4-rest-api/app.js

@@ -1,13 +1,20 @@
 var express = require('express');
+var config = require('config');
 var bodyParser = require('body-parser');
+var tediousExpress = require('express4-tedious');
 
 var app = express();
+app.use(function (req, res, next) {
+    req.query = tediousExpress(req, config.get('connection'));
+    next();
+});
+
 app.use(bodyParser.text()); 
 app.use('/todo', require('./routes/todo'));
 
 // catch 404 and forward to error handler
 app.use(function (req, res, next) {
-    var err = new Error('Not Found');
+    var err = new Error('Not Found: '+ req.method + ":" + req.originalUrl);
     err.status = 404;
     next(err);
 });

samples/features/json/todo-app/nodejs-express4-rest-api/config/default.json

@@ -0,0 +1,8 @@
+{
+    "connection":{
+        "server"  : "<<server name or ip>>",
+        "userName": "<<user name>>",
+        "password": "<<password>>",
+        "options": { "encrypt": true, "database": "<<database name>>" }
+    }
+}

samples/features/json/todo-app/nodejs-express4-rest-api/db.js

@@ -12,8 +12,10 @@
   },
   "dependencies": {
     "body-parser": "^1.15.2",
+    "config": "^1.26.1",
     "debug": "^2.2.0",
     "express": "^4.14.0",
-    "tedious": "^1.14.0"
+    "tedious": "^1.14.0",
+    "express4-tedious": "^0.1.0"
   }
 }

samples/features/json/todo-app/nodejs-express4-rest-api/package.json

@@ -1,56 +1,49 @@
-var express = require('express');
-var router = express.Router();
-
-var db = require('../db.js');
+var router = require('express').Router();
 var TYPES = require('tedious').TYPES;
 
 /* GET task listing. */
 router.get('/', function (req, res) {
-    db.stream("select * from todo for json path", db.createConnection(), res, '[]');
+
+    req.query("select * from todo for json path")
+        .into(res, '[]');
+
 });
 
 /* GET single task. */
 router.get('/:id', function (req, res) {
 
-    var conn = db.createConnection();
+    req.query("select * from todo where id = @id for json path, without_array_wrapper")
+        .param('id', req.params.id, TYPES.Int)
+        .into(res, '{}');
 
-    var request = db.createRequest("select * from todo where id = @id for json path, without_array_wrapper", conn); 
-    request.addParameter('id', TYPES.Int, req.params.id);
-    db.stream(request, conn, res, '{}');
 });
 
 /* POST create task. */
 router.post('/', function (req, res) {
 
-    var connection = db.createConnection();
-    var request = db.createRequest("exec createTodo @todo", connection);
-    
-    request.addParameter('todo', TYPES.NVarChar, req.body);
-    
-    db.executeRequest(request, connection);
+    req.query("exec createTodo @todo")
+        .param('todo', req.body, TYPES.NVarChar)
+        .exec(res);
+
 });
 
 /* PUT update task. */
 router.put('/:id', function (req, res) {
 
-    var connection = db.createConnection();
-    var request = db.createRequest("exec updateTodo @id, @todo", connection);
-    
-    request.addParameter('id', TYPES.Int, req.params.id);
-    request.addParameter('todo', TYPES.NVarChar, req.body);
-    
-    db.executeRequest(request, connection);
+    req.query("exec updateTodo @id, @todo")
+        .param('id', req.params.id, TYPES.Int)
+        .param('todo', req.body, TYPES.NVarChar)
+        .exec(res);
+
 });
 
 /* DELETE single task. */
 router.delete('/:id', function (req, res) {
 
-    var connection = db.createConnection();
-    var request = db.createRequest("delete from todo where id = @id", connection);
+    req.query("delete from todo where id = @id")
+        .param('id', req.params.id, TYPES.Int)
+        .exec(res);
 
-    request.addParameter('id', TYPES.Int, req.params.id);
-    
-    db.executeRequest(request, connection);
 });
 
 module.exports = router;