DEVELOPERS GUIDE

Getting Started

Clone the repo: git clone git@github.com:kenigbolo/mixfit.git for SSH git clone https://github.com/kenigbolo/mixfit.git for HTTPS

Framework/Tools Versions

Ruby version 2.5.1 and above
Rails 5.2.0

Database

Development Environment Uses Postgres
Test environment Uses Postgres

Database Setup

Note The steps below are critical to get the database running

For database to work, postgres must have been installed

Once you have those that sorted out, you can then run your command line and navigate into the project's folder and then perform the following:

Run bundle install to install all dependencies
Run rails db:migrate or rake db:migrate

(the rake command was used for rails version prior rails 5. But it is no logner required)

Running The Server

You can run rails s or rails server and visit the page on the browser by typing localhost:3000. (you can add the flag -p <port_number> to specify a different port number, e.i. rails s -p 8000)

Running The Specs

After all the setting up as mentioned above, you can run the tests. The tests are driven by rspec. You can get them fired up by running the following command from the terminal.

rspec spec

bundle exec rspec

Authentication

This demo project comes without any authentication whatsoever however if you wish to implement authentication then hooking it up to json web token will simply fix that seamlessly

API Main Features

Create and Update User
Create and Update Activity Levels
Create and Update Food Intake
Generate Recipe results

API Routes

Prefix Verb                 URI    Pattern                                               Controller#Action
root                        GET    /                                                     home#index
api_v1_user_food_intakes    POST   /api/v1/users/:user_id/food_intakes(.:format)         api/v1/food_intakes#create
api_v1_user_food_intake     PATCH  /api/v1/users/:user_id/food_intakes/:id(.:format)     api/v1/food_intakes#update
                            PUT    /api/v1/users/:user_id/food_intakes/:id(.:format)     api/v1/food_intakes#update
api_v1_user_activity_levels POST   /api/v1/users/:user_id/activity_levels(.:format)      api/v1/activity_levels#create
api_v1_user_activity_level  PATCH  /api/v1/users/:user_id/activity_levels/:id(.:format)  api/v1/activity_levels#update
                            PUT    /api/v1/users/:user_id/activity_levels/:id(.:format)  api/v1/activity_levels#update
api_v1_user_recipes         GET    /api/v1/users/:user_id/recipes(.:format)              api/v1/recipes#index
new_api_v1_user_recipe      GET    /api/v1/users/:user_id/recipes/new(.:format)          api/v1/recipes#new
api_v1_user_recipe          GET    /api/v1/users/:user_id/recipes/:id(.:format)          api/v1/recipes#show
api_v1_users                POST   /api/v1/users(.:format)                               api/v1/users#create
api_v1_user                 PATCH  /api/v1/users/:id(.:format)                           api/v1/users#update
                            PUT    /api/v1/users/:id(.:format)                           api/v1/users#update

API Request

For Full details of all request body composition kindly see the Postman Collection below.

Note

API Endpoints (User) - /api/v1/users...

username is validated on it's uniqueness

A post request with the body structure below

  { "user": {"username": "test-user", "weight": 80, "height": 1.73 } }

when sent to the endpoint /api/v1/users(.:format) will automatically first search for an existing user with the the username test-user. If it finds a database record then it returns the user object. If it fails to find a user record persisted in the database then it creates a new record and returns the new user object as well as attaching the calculated BMI in the returend response. To update a user record weight and height, the put or patch request to the update user endpoint must still conform to the body structure above.

The parameters weight and height permit only numbers i.e. integers and decimals. Weight expects value in Kilograms while Height expects it's values in Meters. These values are expected in those units in order to accurately calculate your Body Mass Index returned as bmi

API Endpoints (Activity Level) - /api/v1/:user_id/activity_levels...

Before performing any action i.e. create or update, a user check is peformed to see if there is an existing user with the id passed in request params :user_id. If no user is found you get an error message.

request required fields vitamin_c, vitamin_d3, iron

The basic request structure conforms to the structure below

  { "activity_level": {"vitamin_c": 1, "vitamin_d3": 2, "iron": 3} }

The values of vitamin_c, vitamin_d3, and iron must always be a positive integer between the range 1..3

API Endpoints (Food Intake) - /api/v1/:user_id/food_intakes...

request required fields vitamin_c, vitamin_d3, iron