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Welcome to My Users App

Objective

Build an app according to Model-View-Controller architecture using Ruby.
Practice writing own classes.
Work with Database and learn how to avoid SQL injections.
Build routes with Sinatra.
Use session & cookies for "signed in" methods. Send and receive some data from the server with curl.

Description

Part I: Model

There are two classes User and Dbconnect to manipulate user's data and store it in sqlite database.

Part II: Controller

The application is running on puma server using Sinatra to create calls to methods like get, post, put, and delete.

The routes are:

  • GET on /. Responds with HTML. Returns all users.
  • GET on /users. Returns all users.
  • POST on /users. Receives firstname, lastname, age, password and email. Creates a user, stores it in the database and returns the user created.
  • POST on /sign_in. Receives email and password. Adds a session containing the user_id in order to be logged in and returns the user created.
  • PUT on /users. This action require a user to be logged in. It will receive a new password and will update it. It returns the user created.
  • DELETE on /sign_out. This action requires a user to be logged in. Signs out the current user. Returns nothing (code 204 in HTTP).
  • DELETE on /users. This action requires a user to be logged in. Signs out and destroys the current user. Returns nothing (code 204 in HTTP).

Part III: View

ERB template was used in order to return HTML.

Installation

To install dependencies specified in the Gemfile run command:

bundle install

To start running this application:

ruby app.rb -s Puma

Usage

Open a second terminal window (in the first terminal you are already running the app(server)) and start interacting with the server using curl.

Create User: curl -X POST -i http://localhost:8080/users -d "firstname=value1" -d "lastname=value2" -d "age=value3" -d "email=value4" -d "password=value5"

Get all Users: curl -i http://localhost:8080/users

Sign In: curl -c cookie.txt -b cookie.txt -X POST -i http://localhost:8080/sign_in -d "email=value4" -d "password=value5"

Sign Out: curl -c cookie.txt -b cookie.txt -X DELETE -i http://localhost:8080/sign_out

Update Password: curl -c cookie.txt -b cookie.txt -X PUT -i http://localhost:8080/users -d "password=value5"

Delete current user and logout: curl -c cookie.txt -b cookie.txt -X DELETE -i http://localhost:8080/users

Access index view: curl http://localhost:8080/ (Or visit the page in browser)

-i, --include is optional. It will include protocol response headers in the output