How to setup MongoDB on Mac?
This guide is to help you install latest MongoDB on mac and get started.1. Where to Download From?
Please go to http://www.mongodb.org/downloads page and download the latest version suitable for mac.$ tar xzf mongodb-osx-x86_64-2.4.6.tgz
$ sudo mv mongodb-osx-x86_64-2.4.6.tgz /usr/local/mongodb
2. How to start the server?
$ mkdir ~/mongo_db$ mongod --dbpath ~/mongo_db --rest --jsonp
You can also start server by simply executing
$ mongod
However, below are the most commonly used parameters for quick setup and use.
--dbpath determines the location where the database will be created.
--rest parameter is necessary for enabling RESTful API
--jsonp is needed enabling javascript callback when writing front end AJAX calls.
3. How to test your setup?
Open a new terminal and run below command to open mongodb CLI.$ mongo
Here are simple and often used commands -
To see the list of databases -
> show dbs;
local 0.078125GB
To create/use a database named "school" (MongoDB creates an actual DB only when you start inserting data. There is no other separate step of database creation) -
> use school;
switched to db school
MongoDB has concept called collection, which is little analogues to standard RDBMS tables.
Now to insert data into a collection called "student", simply execute -
> db.students.save({"firstname": "nilesh","lastname": "mahajan","rollnumber": 101});
To view the content of a collection -
> db.students.find()
{ "_id" : ObjectId("52536af24e0b01d0863bc93d"), "firstname" : "nilesh", "lastname" : "mahajan", "rollnumber" : 101 }
MondoDB automatically inserts an _id attribute if the input object doesn't have it.
If you go to, http://localhost:28017/
you can see a control panel with additional information, list of commands etc.
Also, if you hit http://localhost:28017/school/students/
you can see retrieve your collection information. Please note the trailing '/' at the end of above URL, otherwise mongodb will not show you any error. But it will return 0 objects always.
And finally, to clear the collection -
> db.students.remove()
This should be easy to get you started with mongodb setup and some basic CRUD operations.