This gem offers some templates for basic CRUD endpoints using grape, grape-entity and grape-kaminari

Install the gem and add to the application's Gemfile by executing:

$ bundle add grape-utils

If bundler is not being used to manage dependencies, install the gem by executing:

$ gem install grape-utils

Given you already have a Grape API set up, and a model Foo, with a Entities:Foo, you can Use ::Grape::Utils::Templates::Crud as follows:

module AwesomeAPI
 module Resources
 class Foo < Base
 resource :foos do
 mount ::Grape::Utils::Templates::Crud, with: {
 # The collection that will be used for the index endpoint
 index: Foo.all,
 # The ActiveModel instance that will be used to create, update and find_by!
 model: Foo,
 # The entity that will be used as a return type
 entity: Entities::Foo,
 # The required params for the Create endpoint
 required_params: [:name]
 }
 end
 end
 end
end

This will mount 5 endpoints in your API: Index, Show, Create, Update and Delete

Each of this templates can also be accessed individually if needed:

module AwesomeAPI
 module Resources
 class Foo < Base
 resource :foos do
 mount Grape::Utils::Templates::Index, with: { model: Foo, scope: Foo.all, entity: Entities::Foo }
 mount Grape::Utils::Templates::Show, with: { model: Foo, entity: Entities::Foo }
 mount Grape::Utils::Templates::Create, with: { model: Foo, entity: Entities::Foo}
 mount Grape::Utils::Templates::Update, with: { model: Foo.all, entity: Entities::Foo }
 mount Grape::Utils::Templates::Delete, with: { model: Foo, entity: Entities::Foo }
 route_param :id, type: Integer do
 get 'nested_foo' do
 #Any other relevant logic
 end
 end
 end
 end
 end
end

This way you can customize one of the methods to fit your situation while still using the rest as standard

The Entities Definition is used in 2 essential ways: first as a return type, and second as the param definition for the POST and PATCH endpoints

From the Entities exposed fields, only those with a documentation property will be used as a param on the POST/PATCH endpoints

So given:

module AwesomeAPI
 module Entities
 class Foo < Grape::Entity
 expose :id
 expose :name, documentation: { type: String }
 expose :configuration, documentation: { type: JSON }
 expose :created_at
 expose :updated_at
 end
 end
end

Only name and configuration will be accepted as params in POST and PATCH endpoints, with it's corresponding types

You can define which of the documented exposed fields of the Entity are required for the creation of the resource by mounting ::Grape::Utils::Templates::Crud or ::Grape::Utils::Templates::Create with required_params: String[]

By default, it is assumed that the resources will be identified by the column id This will be used as the route parameter of the Show, Update and Delete endpoints, and by means of which, the resource will be located If you want to change the name of the column to use as id, you can mount the relevant templates with{... column_id: 'field_key' }

After checking out the repo, run bin/setup to install dependencies. Then, run rake spec to run the tests. You can also run bin/console for an interactive prompt that will allow you to experiment.

To install this gem onto your local machine, run bundle exec rake install.

Bug reports and pull requests are welcome on GitHub at https://github.com/Nix41/grape-utils. This project is intended to be a safe, welcoming space for collaboration, and contributors are expected to adhere to the code of conduct.

Particularly I am still working on getting the gem 100% covered

The gem is available as open source under the terms of the MIT License.

Everyone interacting in the Grape::Utils project's codebases, issue trackers, chat rooms and mailing lists is expected to follow the code of conduct.