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Become a full stack JavaScript developer with Sails.js, a versatile and in-demand framework for Node.js. Build your first single page application and handle AJAX forms on the server. Develop frontend and backend code, all using the same language. May 30, 2018 Sails.js is a Node.js MVC (model–view–controller) framework that follows the “convention over configuration” principle. It’s inspired by the popular Ruby on Rails web framework, and allows you to quickly build REST APIs, single-page apps and real-time (WebSockets-based) apps. If you want to set or unset a singular ('model') attribute, just use update and set the foreign key to the id of the new foreign record (or null to clear the association). If you want to completely replace the set of records in the collection with another set, use the replace blueprint. Sails generate. Generate a code file (or multiple files) in a Sails app. Sails generate generator Sails ships with several generators to help you scaffold new projects, spit out boilerplate code for common files, and automate your development process. Core generators. The following core generators are bundled with Sails.
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What the Red means
The lines that the user needs to enter or customize will be in red in this tutorial!
The rest should mostly be copy-and-pastable.
What is Sails.js?![]()
Sails.js makes it easy to build custom, enterprise-grade Node.js apps. It is designed to mimic the MVC pattern of frameworks like Ruby on Rails, but with support for the requirements of modern apps:, allowing you to use virtually any database you want to with your app. This gives you the maximum amount of flexibility, differing from other MVC frameworks that insist on you using MongoDB.
All of these and the fact that on deployment, all of your files are concatenated and minified means that you don't have to spend as much time setting the main framework up to build your app on top of, as it is all ready and easy to use.
Installing Node.js on an Ubuntu VPS
Installing Sails.js
To install the latest stable release of sails, you will need to run:
The
-g flag ensures that sails is installed globally and can be used as a command-line tool.
Creating your Sails app
You will want to navigate to the directory in which you would like your app to be located, e.g.
/var/www and then run:
This will add the required files to your project, and create a directory named project-name.
Starting up the Sails.js server
To view your boilerplate app, you will need to change directory into the project directory and then start the server:
then:
This will create a server running at 123.456.78.90:1337, and the page may look something like this (They have changed it a few times, so depending on when you are reading this article, it may be different):
Creating Controllers
Creating a controller is easy, the sails CLI does all the hard stuff for you. e.g. To create a controller called user with the methods 'index, show, edit, delete', all you have to do is run the following command:
This will create a file in
api/controllers called UserController.js that looks something like this (giving you helpful hints on what the function does, and how it works):
Creating ModelsUsing Sails Js Generate Key In Excel
Creating a model is as easy as creating a controller with Sails.js. You have no database migrations to worry about, Sails.js does all of that for you intelligently. You are able to use the default in-file database, MySQL or many other database types via 'adapters' which can be found by searching around, or looking through the creator's GitHub repositories.
When creating a model, you can specify fields to be added to that model by adding them afterwards, in the format of
[name]:[type] .
e.g. To create a model called user with the fields 'name, email, password', all you have to do is run the following command:
This will create a file in
api/models called User.js that looks something like this:
Creating a Blueprint API
You can generate the Controller and Model at the same time, also generating a Blueprint API that allows you to visit /user and view the raw json representation of the data stored.
The Blueprint API saves you time in the short term by creating connections between your model and controller, allowing you to add new records to the database using that route, e.g. going to http://localhost/user/create?name=John+Smith will create a new user with the name of 'John Smith' and print out a JSON array of all of the records created in that model, so the previous URL would print out:
In practice, you would want to change or add new methods in the controller, however every new Controller has create(), find(), findAll(), update(), and destroy() methods by default. These can be overridden though, to disable them or just customise them.
The data can also be populated by performing a POST request with a JSON string of the data that you want to insert, e.g.
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Js Generate GuidAdding Routes
Routes can be added by opening
config/routes.js . The file is very well documented using comments, so I feel it is only necessary to add an image rather than describe it, if anything.
Setting the Server to Production Mode
When you are ready to deploy an app to production, moving it from port 1337 to 80, Sails.js allows you to do this easily.
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