RecipesWebProject

A Simple Web Service to create and save recipes. Made using SpringBoot for the backend and Angular for the frontend

Database

The database is written in MySQL and is formed by three tables:

• recipes with attributes:
  • id (primary key)
  • title
  • date_of_creation (datetime)
  • serving
  • description (nullable)
  • time
  • difficulty (enum)
  • photo (nullable, LONGTEXT to save the base64 string of the image)
• ingredients with attributes:
  • id (primary key)
  • name
  • quantity
  • unit_of_measurement
  • recipe_id (foreign key, relationship N:1 with recipes)
• steps with attributes:
  • id (primary key)
  • step_number (must be unique in the same recipe)
  • title
  • description
  • recipe_id (foreign key, relationship N:1 with recipes)

Backend (REST API)

RecipesStorage - RESTapi This is a REST API to manage a storage of recipes. It is written in Java using Spring Boot and Spring Data JPA and is available ad http://localhost:8080
The API allows to make the following CRUD calls (the results are in JSON format)
All of the values are validated before saving them in the database. If a value is not valid, the API returns an error message (tipically an error 400: bad requests, or 404: not found).

• for the recipes:
  • GET http://localhost:8080/recipeStorage/recipes (all the recipes)
  • GET http://localhost:8080/recipeStorage/recipes/{recipe_id} (a specific recipe)
  • GET http://localhost:8080/recipeStorage/recipes?title=YourRecipeTitle (get recipe with title)
  • GET http://localhost:8080/recipeStorage/recipes?title_start=RecipeTitle (get recipe with beginning of its title)
  • GET http://localhost:8080/recipeStorage/recipes/difficulty/{recipe_difficulty} (get recipes by difficulty)
  • POST http://localhost:8080/recipeStorage/recipes (add an array of new recipes!)
  • PUT http://localhost:8080/recipeStorage/recipes/{recipe_id} (update a recipe)
  • DELETE http://localhost:8080/recipeStorage/recipes/{recipe_id} (delete a recipe)
  • DELETE http://localhost:8080/recipeStorage/recipes (delete all the recipes)
  • GET http://localhost:8080/recipeStorage/recipes/count (count the number of recipes)

A post request for a recipe must specify: {
"title": "YourRecipeTitle",
"serving": servingNumber,
"time": timeInMinutes,
"difficulty": "Easy or Medium or Hard",
}

A post request for a recipe can also specify {
"description": "YourRecipeDescription",
"photo": "YourRecipePhotoBase64String"
}

• for the ingredients:
  • GET http://localhost:8080/recipeStorage/ingredients (all the ingredients)
  • GET http://localhost:8080/recipeStorage/recipes/{recipe_id}/ingredients (ingredients of a recipe)
  • POST http://localhost:8080/recipeStorage/recipes/{recipe_id}/ingredients (add an array of ingredients to a specific recipe)
  • PUT http://localhost:8080/recipeStorage/ingredients/{ingredient_id} (update an ingredient)
  • DELETE http://localhost:8080/recipeStorage/ingredients/{ingredient_id} (delete an ingredient)
  • DELETE http://localhost:8080/recipeStorage/recipes/{recipe_id}/ingredients (delete all the ingredients of a recipe)
  • DELETE http://localhost:8080/recipeStorage/ingredients (delete all the ingredients)
  • GET http://localhost:8080/recipeStorage/recipes/{recipe_id}/ingredients/count (count the number of ingredients of a recipe)

A post request for an ingredient must specify {
"name": "YourIngredientName",
"quantity": ingredientQuantity,
"unitOfMeasurement": "YourUnitOfMeasurement"
}

• for the steps:
  • GET http://localhost:8080/recipeStorage/steps (all the steps)
  • GET http://localhost:8080/recipeStorage/recipes/{recipe_id}/steps (steps of a recipe)
  • POST http://localhost:8080/recipeStorage/recipes/{recipe_id}/steps (add an array of steps to a specific recipe)
  • PUT http://localhost:8080/recipeStorage/steps/{step_id} (update a step)
  • DELETE http://localhost:8080/recipeStorage/steps/{step_id} (delete a step)
  • DELETE http://localhost:8080/recipeStorage/recipes/{recipe_id}/steps (delete all the steps of a recipe)
  • DELETE http://localhost:8080/recipeStorage/steps (delete all the steps)
  • GET http://localhost:8080/recipeStorage/recipes/{recipe_id}/steps/count (count the number of steps of a recipe)
  • GET http://localhost:8080/recipeStorage/steps/count (count all the steps saved in the database)

A post request for the step must specify {
"stepNumber": stepNumber,
"title": "YourStepTitle",
"description": "YourStepDescription"
}

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Most important files of the application:

• RecipeStorageApplication.java: the main class of the application
• Entities: the classes that represent the entities of the database
• Repositories: the interfaces that extend the JpaRepository interface (provided by Spring Data JPA) and allow to make CRUD calls
• Controllers: the classes that manage the requests and the responses
• httpRequests: used to test the API with multiple calls

Frontend (Angular)

The frontend is made in Angular, it can be started with 'ng serve' and is available ad http://localhost:4200