rails api only with postgress and rspec
Install Ruby: Begin by installing the Ruby programming language on your system. Ruby can be downloaded from the official Ruby website or installed using a package manager like Homebrew (for macOS) or Chocolatey (for Windows).
Install Rails: After installing Ruby, you need to install the Ruby on Rails framework. This can be done by running the following command in your terminal:
gem install rails
This command will download and install the latest version of Rails.
- Create a new Rails API project: Once Rails is installed, navigate to the directory where you want to create your project and run the following command:
rails new my_api --api -d postgresql
This command creates a new Rails API-only project named "my_api" and specifies PostgreSQL as the database.
Configure database connection: Open the
config/database.yml
file in your project and modify the database configuration to match your PostgreSQL credentials. Update theusername
andpassword
fields if necessary.Create the database: Run the following command to create the PostgreSQL database for your project:
rails db:create
This command will create the database specified in your database.yml
file.
- Generate a model: To generate a model, run the following command:
rails generate model MyModel name:string age:integer
This command will generate a new model called "MyModel" with two attributes: "name" of type string and "age" of type integer.
- Run database migrations: Migrations are used to manage changes to your database schema. Run the following command to apply the migrations:
rails db:migrate
This command will create the necessary database tables based on your model definitions.
- Create a controller: Controllers handle the logic for your API endpoints. Run the following command to generate a controller:
rails generate controller MyModels
This command will create a new controller called "MyModels".
Define API endpoints: Open the newly generated
app/controllers/my_models_controller.rb
file and add the necessary actions for your API endpoints. For example, you can define acreate
action to handle the creation of new records.Write RSpec tests: RSpec is a testing framework for Ruby. Create a new directory called
spec
in your project root, and inside it, create a new file calledmy_model_spec.rb
. Write RSpec tests to test the functionality of your API endpoints. For example, you can write tests to ensure that creating a new record returns the expected response.Run RSpec tests: Finally, run the RSpec tests using the following command:
rspec
This command will execute all the tests defined in your
spec
directory and provide feedback on their success or failure.
That's it! You now have a Ruby on Rails API-only project with PostgreSQL as the database, and RSpec tests to ensure the functionality of your API endpoints.