Install and use Couchbase client for node.js. Npm is the node package manager, that allows you to easily install node.js modules and manage dependencies for your application (I will present the dependency management in another post) 1- Install the Couchbase Client for node.js, using the following command. When using Mac OS X you can install Node using an Install Wizard. Go to to download the node-v.pkg file by clicking on 'Macintosh Installer' icon. This tool will help to install the libraries and other tools to support angular development.Let's start with nodejs installation post completion on nodejs we will install angular cli and create new angular project1.Download nodejsVisit nodejs download page hereClick on macOS Installer to download the latest version of node installable package. Installing Node.js® and NPM on Mac What's Node.js® and NPM? Node.js® is a JavaScript-based environment which you can use to create web-servers and networked applications. Node.js and the NPM package manger are powerful tools, allowing for rapid prototyping on one's own computer system as though it were the end server containing your web application. The following is a beginner's guide to installing these tools on a Mac 10.10.3 system.
What's Node.js® and NPM?
Node.js® is a JavaScript-based environment which you can use to create web-servers and networked applications. You can also use it to perform helpful tasks on your computer such as concatenating and minifying JavaScript files and compiling Sass files into CSS.
NPM is a 'package manager' that makes installing Node 'packages' fast and easy. A package, also called a module, is just a code library that extends Node by adding useful features. For example, the 'request' module simplifies the process of making HTTP requests so you can easily get web resources from other sites.
NPM is installed when you install Node.js®
Although there is a Mac installer program on the Node website, we recommend using Homebrew to install and update Node.
Prerequisites
- You should have some familiarity with the Mac Terminal application since you'll need to use it to install and test Node and NPM. You'll also need the Terminal to use Node.js and NPM. The Terminal application is located in the Utilities folder in the Applications folder.
- Dependencies. Although you can install Node in other ways, we recommend using Homebrew. Homebrew lets you avoid possible security problems associated with using the
sudocommand to install software like Node and Node modules.- Install Homebrew. Follow the steps on the How to Install Homebrew on a Mac instruction guide to install Homebrew.
Installation Overview
Installing Node.js® and NPM is pretty straightforward using Homebrew. Homebrew handles downloading, unpacking and installing Node and NPM on your system. The whole process (after you have Homebrew installed) should only take you a few minutes.
Installation Steps
- Open the Terminal app and type
brew update. This updates Homebrew with a list of the latest version of Node. - **Type
brew install node. - Sit back and wait. Homebrew has to download some files and install them. But that's it.
Test it!
Make sure you have Node and NPM installed by running simple commands to see what version of each is installed:
- Test Node. To see if Node is installed, type
node -vin Terminal. This should print the version number so you'll see something like thisv0.10.31. - Test NPM. To see if NPM is installed, type
npm -vin Terminal. This should print the version number so you'll see something like this1.4.27
How to Update Node and NPM
New versions of Node and NPM come out frequently. You can use Homebrew to update the software it installs.
- Make sure Homebrew has the latest version of the Node package. In Terminal type
brew update - Upgrade Node:
brew upgrade node
How to Uninstall Node and NPM
You can use Homebrew to uninstall packages that it installed:
brew uninstall node
NOTE: The Couchbase Node.js Client Library is currently changing. I will update this article and source code once the API is stable.
I am currently playing a little bit with Node.js . It is quite fun! In this article I won't go in a a very complex application but just give you the basic steps to create your first Node.js+Couchbase application… on Mac OS X.
Installation
Couchbase 2.0 Beta:
You can take a look the first steps of my previous article to install Couchbase. The basics steps are:
- Download Couchbase 2. 0 Beta
- Start the server (Run the 'Couchbase Server' application)
- Configure the server
Other Components :
Mac Os Node Js
- Node.js
- Couchbase Client Library (C version)
To install these two components I am using homebrew (aka brew).
_Hmmm, what is homebrew?
Homebrew is a package manager for OS X that allows you to install, update and uninstall unix tools using very simple commands. You can find more information on the homebrew site. So let's start by installing homebrew itself.
From a terminal window:
Then let's install node
and finally install Couchbase Client Library
Coding
You are now ready to start the development of your application.
Test it!
Make sure you have Node and NPM installed by running simple commands to see what version of each is installed:
- Test Node. To see if Node is installed, type
node -vin Terminal. This should print the version number so you'll see something like thisv0.10.31. - Test NPM. To see if NPM is installed, type
npm -vin Terminal. This should print the version number so you'll see something like this1.4.27
How to Update Node and NPM
New versions of Node and NPM come out frequently. You can use Homebrew to update the software it installs.
- Make sure Homebrew has the latest version of the Node package. In Terminal type
brew update - Upgrade Node:
brew upgrade node
How to Uninstall Node and NPM
You can use Homebrew to uninstall packages that it installed:
brew uninstall node
NOTE: The Couchbase Node.js Client Library is currently changing. I will update this article and source code once the API is stable.
I am currently playing a little bit with Node.js . It is quite fun! In this article I won't go in a a very complex application but just give you the basic steps to create your first Node.js+Couchbase application… on Mac OS X.
Installation
Couchbase 2.0 Beta:
You can take a look the first steps of my previous article to install Couchbase. The basics steps are:
- Download Couchbase 2. 0 Beta
- Start the server (Run the 'Couchbase Server' application)
- Configure the server
Other Components :
Mac Os Node Js
- Node.js
- Couchbase Client Library (C version)
To install these two components I am using homebrew (aka brew).
_Hmmm, what is homebrew?
Homebrew is a package manager for OS X that allows you to install, update and uninstall unix tools using very simple commands. You can find more information on the homebrew site. So let's start by installing homebrew itself.
From a terminal window:
Then let's install node
and finally install Couchbase Client Library
Coding
You are now ready to start the development of your application.
Create a very simple application
1- Create a folder for your application
2- Create an app.js file and copy the following code:
I won't go in all the details about a node application; for this I invite you to read The Node Beginnger Book.
3- Start your server
Download Node Js For Mac
You should be able to access your application using http://localhost:8080
To stop your server just use ctrl+c.
Install and use Couchbase client for node.js
npm is the node package manager, that allows you to easily install node.js modules and manage dependencies for your application (I will present the dependency management in another post)
1- Install the Couchbase Client for node.js, using the following command
Couldn't be simpler! Adobe connect for mac download. You can find more information about Couchbase Client for node on its npm page.
2- Lets now insert some data into Couchbase
Create a simple function that inserts some documents, and call it after server startup:
- Lines 4-5 : load the Couchbase driver and connect to the server. I am using the complete list of parameter
connect('server:port', 'username', 'password', 'bucket'). But you can use the short versionconnect('server:port')` - Lines 12-30 : just create JSON object that will be pushed in Couchbase.
- Line 33 : the application just read each element of the array and insert them into Couchbase using the
couchbase.add()function. - Lines 34-38 : the
couchbase.add()function set the value only if it does not exist. If the value exists the error code LCB_KEY_EEXISTS (12) is return by the callback function
3- Start your server - node app.js - and check using the Admin Console that employees are inserted into your Couchbase instance. Note that node.js applications do not support hot deployment, so you need to bounce your application when changing the code.
Create and use Couchbase View
Let's now create and use a view to return the employee list.
1- All Couchbase views are accessible using a simple REST API, but you can also use the node.js plugin : baseview; so let's install this module:
- Create a new view from your application
You can use the Admin Console to create the view, but it is also possible to do it from your node.js code. So let's add the view programmatically in the insertData function.
Install Node Js On Mac
This new code, create a new view in Couchbase server:
- line 7 : load the module and set the properties to call the view services
- line 16-17 : call the
basevie.setDesign()method, that create a view. - line 18 : set the map function that list all the employees
3- Let's now call the view in the onRequest function.
Calling the view is quite simple :
- lines 6-8 : create an object to send view parameters. In this example I am just using descending, and include_docs to get the full document as part of the response. You can find the list of all the parameters you can use in the Couchbase documentation : Querying Using the REST API (The baseview module is using REST API to call the views).
- line 10-14 : just loop on the result content, returned in the data variable, and print the employee information in the console.
Note: Because of the asynchronous nature of node.js, and my lack of experience with node, I was not able to send the list of employee to the HTTP response.
Upgrade Node Js Mac
In another article I will explain how to integrate Couchbase with an node.js application based on Express and Socket.io, where I list the Employee in my the Web page.
Node Js Os Platform
Below, the complete code of this simple node.js application:
