Upgraded to express4-tedious DAC

Changed data access layer in nodejs product catalog to express4 tedious.

Author: JocaPC

samples/features/json/product-catalog/nodejs-jquery-bootstrap-app/.gitignore

@@ -3,4 +3,5 @@ node_modules/*
 bin/*.dll
 obj/*
 *.sln
-*.log
+*.log
+package-lock.json

samples/features/json/product-catalog/nodejs-jquery-bootstrap-app/app.js

@@ -1,10 +1,19 @@
-var express = require('express');
+var config = require('config');
+var express = require('express');
 var bodyParser = require('body-parser');
+var tediousExpress = require('express4-tedious');
 
 var app = express();
 app.use(express.static('wwwroot'));
+
 //app.use(bodyParser.json());
 app.use(bodyParser.text({ type: 'application/json' }))
+
+app.use(function (req, res, next) {
+    req.sql = tediousExpress(req, config.get('connection'));
+    next();
+});
+
 app.use('/api/Product', require('./routes/products'));
 
 // catch 404 and forward to error handler
@@ -13,6 +22,7 @@ app.use(function (req, res, next) {
     err.status = 404;
     next(err);
 });
+
 app.set('port', process.env.PORT || 3000);
 
 var server = app.listen(app.get('port'), function() {

samples/features/json/product-catalog/nodejs-jquery-bootstrap-app/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/product-catalog/nodejs-jquery-bootstrap-app/package.json

@@ -11,9 +11,11 @@
     "email": "jovanpop@microsoft.com"
   },
   "dependencies": {
-    "body-parser": "^1.15.2",
-    "debug": "^2.2.0",
-    "express": "^4.14.0",
-    "tedious": "^1.14.0"
+    "body-parser": "^1.18.2",
+    "config": "^1.29.2",
+    "debug": "^2.6.9",
+    "express": "^4.16.2",
+    "express4-tedious": "^0.1.0",
+    "tedious": "^1.15.0"
   }
 }

samples/features/json/product-catalog/nodejs-jquery-bootstrap-app/routes/products.js

@@ -1,59 +1,41 @@
 var express = require('express');
 var router = express.Router();
-
-var db = require('../db.js');
 var TYPES = require('tedious').TYPES;
 
 /* GET products. */
 router.get('/', function (req, res) {
-    db.stream("select ProductID, Name, Color, Price, Quantity, JSON_VALUE(Data, '$.MadeIn') as MadeIn, JSON_QUERY(Tags) as Tags from Product FOR JSON PATH, ROOT('data')", db.createConnection(), res, '[]');
+    req.sql("select ProductID, Name, Color, Price, Quantity, JSON_VALUE(Data, '$.MadeIn') as MadeIn, JSON_QUERY(Tags) as Tags from Product FOR JSON PATH, ROOT('data')")
+        .into(res, '[]');
 });
 
 /* GET single product. */
 router.get('/:id', function (req, res) {
-    
-    var conn = db.createConnection();
-
-    var request = db.createRequest("select ProductID, Name, Color, Price, Quantity, JSON_VALUE(Data, '$.MadeIn') as MadeIn, JSON_QUERY(Tags) as Tags from Product where productid = @id for json path, without_array_wrapper", conn); 
-    request.addParameter('id', TYPES.Int, req.params.id);
-    db.stream(request, conn, res, '{}');
+    req.sql("select ProductID, Name, Color, Price, Quantity, JSON_VALUE(Data, '$.MadeIn') as MadeIn, JSON_QUERY(Tags) as Tags from Product where productid = @id for json path, without_array_wrapper")
+        .param('id', req.params.id, TYPES.Int)
+        .into(res, '{}');
 });
 
 /* POST create product. */
 router.post('/', function (req, res) {
 
-    var connection = db.createConnection();
-    var request = db.createRequest("EXEC InsertProductFromJson @json", connection);
-    
-    request.addParameter('json', TYPES.NVarChar, req.body);
-    
-    db.executeRequest(request, connection);
-
-    res.end();
+    req.sql("EXEC InsertProductFromJson @json")
+        .param('json', req.body, TYPES.NVarChar)
+        .exec(res);
 });
 
 /* PUT update product. */
 router.put('/:id', function (req, res) {
-    
-    var connection = db.createConnection();
-    var request = db.createRequest("EXEC UpdateProductFromJson @id, @json", connection);
-    request.addParameter('id', TYPES.Int, req.params.id);
-    request.addParameter('json', TYPES.NVarChar, req.body);
-    
-    db.executeRequest(request, connection);
-
-    res.end();
+    req.sql("EXEC UpdateProductFromJson @id, @json")
+        .param('json', req.body, TYPES.NVarChar)
+        .param('id', req.params.id, TYPES.Int)
+        .exec(res);
 });
 
+/* DELETE delete product. */
 router.delete('/:id', function (req, res) {
-    
-    var connection = db.createConnection();
-    var request = db.createRequest("DELETE Product WHERE ProductId = @id", connection);
-    request.addParameter('id', TYPES.Int, req.params.id);
-    
-    db.executeRequest(request, connection);
-
-    res.end();
+    req.sql("DELETE Product WHERE ProductId = @id")
+        .param('id', req.params.id, TYPES.Int)
+        .exec(res);
 });
 
 module.exports = router;